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javax.jms</FONT>
<BR>
Interface Message</H2>
<DL>
<DT><B>All Known Subinterfaces:</B> <DD><A HREF="BytesMessage.html" title="interface in javax.jms">BytesMessage</A>, <A HREF="MapMessage.html" title="interface in javax.jms">MapMessage</A>, <A HREF="ObjectMessage.html" title="interface in javax.jms">ObjectMessage</A>, <A HREF="StreamMessage.html" title="interface in javax.jms">StreamMessage</A>, <A HREF="TextMessage.html" title="interface in javax.jms">TextMessage</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public interface <B>Message</B></DL>
</PRE>
<P>
The <CODE>Message</CODE> interface is the root interface of all JMS
messages. It defines the message header and the <CODE>acknowledge</CODE>
method used for all messages.
<P>Most message-oriented middleware (MOM) products treat messages as
lightweight entities that consist
of a header and a payload. The header contains fields used for message
routing and identification; the payload contains the application data
being sent.
<P>Within this general form, the definition of a message varies
significantly across products. It would be quite difficult for the JMS API
to support all of these message models.
<P>With this in mind, the JMS message model has the following goals:
<UL>
<LI>Provide a single, unified message API
<LI>Provide an API suitable for creating messages that match the
format used by provider-native messaging applications
<LI>Support the development of heterogeneous applications that span
operating systems, machine architectures, and computer languages
<LI>Support messages containing objects in the Java programming language
("Java objects")
<LI>Support messages containing Extensible Markup Language (XML) pages
</UL>
<P>JMS messages are composed of the following parts:
<UL>
<LI>Header - All messages support the same set of header fields.
Header fields contain values used by both clients and providers to
identify and route messages.
<LI>Properties - Each message contains a built-in facility for supporting
application-defined property values. Properties provide an efficient
mechanism for supporting application-defined message filtering.
<LI>Body - The JMS API defines several types of message body, which cover
the majority of messaging styles currently in use.
</UL>
<H4>Message Bodies</H4>
<P>The JMS API defines five types of message body:
<UL>
<LI>Stream - A <CODE>StreamMessage</CODE> object's message body contains
a stream of primitive values in the Java programming
language ("Java primitives"). It is filled and read sequentially.
<LI>Map - A <CODE>MapMessage</CODE> object's message body contains a set
of name-value pairs, where names are <CODE>String</CODE>
objects, and values are Java primitives. The entries can be accessed
sequentially or randomly by name. The order of the entries is
undefined.
<LI>Text - A <CODE>TextMessage</CODE> object's message body contains a
<CODE>java.lang.String</CODE> object. This message type can be used
to transport plain-text messages, and XML messages.
<LI>Object - An <CODE>ObjectMessage</CODE> object's message body contains
a <CODE>Serializable</CODE> Java object.
<LI>Bytes - A <CODE>BytesMessage</CODE> object's message body contains a
stream of uninterpreted bytes. This message type is for
literally encoding a body to match an existing message format. In
many cases, it is possible to use one of the other body types,
which are easier to use. Although the JMS API allows the use of
message properties with byte messages, they are typically not used,
since the inclusion of properties may affect the format.
</UL>
<H4>Message Headers</H4>
<P>The <CODE>JMSCorrelationID</CODE> header field is used for linking one
message with
another. It typically links a reply message with its requesting message.
<P><CODE>JMSCorrelationID</CODE> can hold a provider-specific message ID,
an application-specific <CODE>String</CODE> object, or a provider-native
<CODE>byte[]</CODE> value.
<H4>Message Properties</H4>
<P>A <CODE>Message</CODE> object contains a built-in facility for supporting
application-defined property values. In effect, this provides a mechanism
for adding application-specific header fields to a message.
<P>Properties allow an application, via message selectors, to have a JMS
provider select, or filter, messages on its behalf using
application-specific criteria.
<P>Property names must obey the rules for a message selector identifier.
Property names must not be null, and must not be empty strings. If a property
name is set and it is either null or an empty string, an
<CODE>IllegalArgumentException</CODE> must be thrown.
<P>Property values can be <CODE>boolean</CODE>, <CODE>byte</CODE>,
<CODE>short</CODE>, <CODE>int</CODE>, <CODE>long</CODE>, <CODE>float</CODE>,
<CODE>double</CODE>, and <CODE>String</CODE>.
<P>Property values are set prior to sending a message. When a client
receives a message, its properties are in read-only mode. If a
client attempts to set properties at this point, a
<CODE>MessageNotWriteableException</CODE> is thrown. If
<CODE>clearProperties</CODE> is called, the properties can now be both
read from and written to. Note that header fields are distinct from
properties. Header fields are never in read-only mode.
<P>A property value may duplicate a value in a message's body, or it may
not. Although JMS does not define a policy for what should or should not
be made a property, application developers should note that JMS providers
will likely handle data in a message's body more efficiently than data in
a message's properties. For best performance, applications should use
message properties only when they need to customize a message's header.
The primary reason for doing this is to support customized message
selection.
<P>Message properties support the following conversion table. The marked
cases must be supported. The unmarked cases must throw a
<CODE>JMSException</CODE>. The <CODE>String</CODE>-to-primitive conversions
may throw a runtime exception if the
primitive's <CODE>valueOf</CODE> method does not accept the
<CODE>String</CODE> as a valid representation of the primitive.
<P>A value written as the row type can be read as the column type.
<PRE>
| | boolean byte short int long float double String
|----------------------------------------------------------
|boolean | X X
|byte | X X X X X
|short | X X X X
|int | X X X
|long | X X
|float | X X X
|double | X X
|String | X X X X X X X X
|----------------------------------------------------------
</PRE>
<P>In addition to the type-specific set/get methods for properties, JMS
provides the <CODE>setObjectProperty</CODE> and
<CODE>getObjectProperty</CODE> methods. These support the same set of
property types using the objectified primitive values. Their purpose is
to allow the decision of property type to made at execution time rather
than at compile time. They support the same property value conversions.
<P>The <CODE>setObjectProperty</CODE> method accepts values of class
<CODE>Boolean</CODE>, <CODE>Byte</CODE>, <CODE>Short</CODE>,
<CODE>Integer</CODE>, <CODE>Long</CODE>, <CODE>Float</CODE>,
<CODE>Double</CODE>, and <CODE>String</CODE>. An attempt
to use any other class must throw a <CODE>JMSException</CODE>.
<P>The <CODE>getObjectProperty</CODE> method only returns values of class
<CODE>Boolean</CODE>, <CODE>Byte</CODE>, <CODE>Short</CODE>,
<CODE>Integer</CODE>, <CODE>Long</CODE>, <CODE>Float</CODE>,
<CODE>Double</CODE>, and <CODE>String</CODE>.
<P>The order of property values is not defined. To iterate through a
message's property values, use <CODE>getPropertyNames</CODE> to retrieve
a property name enumeration and then use the various property get methods
to retrieve their values.
<P>A message's properties are deleted by the <CODE>clearProperties</CODE>
method. This leaves the message with an empty set of properties.
<P>Getting a property value for a name which has not been set returns a
null value. Only the <CODE>getStringProperty</CODE> and
<CODE>getObjectProperty</CODE> methods can return a null value.
Attempting to read a null value as a primitive type must be treated as
calling the primitive's corresponding <CODE>valueOf(String)</CODE>
conversion method with a null value.
<P>The JMS API reserves the <CODE>JMSX</CODE> property name prefix for JMS
defined properties.
The full set of these properties is defined in the Java Message Service
specification. New JMS defined properties may be added in later versions
of the JMS API. Support for these properties is optional. The
<CODE>String[] ConnectionMetaData.getJMSXPropertyNames</CODE> method
returns the names of the JMSX properties supported by a connection.
<P>JMSX properties may be referenced in message selectors whether or not
they are supported by a connection. If they are not present in a
message, they are treated like any other absent property.
<P>JMSX properties defined in the specification as "set by provider on
send" are available to both the producer and the consumers of the message.
JMSX properties defined in the specification as "set by provider on
receive" are available only to the consumers.
<P><CODE>JMSXGroupID</CODE> and <CODE>JMSXGroupSeq</CODE> are standard
properties that clients
should use if they want to group messages. All providers must support them.
Unless specifically noted, the values and semantics of the JMSX properties
are undefined.
<P>The JMS API reserves the <CODE>JMS_<I>vendor_name</I></CODE> property
name prefix for provider-specific properties. Each provider defines its own
value for <CODE><I>vendor_name</I></CODE>. This is the mechanism a JMS
provider uses to make its special per-message services available to a JMS
client.
<P>The purpose of provider-specific properties is to provide special
features needed to integrate JMS clients with provider-native clients in a
single JMS application. They should not be used for messaging between JMS
clients.
<H4>Provider Implementations of JMS Message Interfaces</H4>
<P>The JMS API provides a set of message interfaces that define the JMS
message
model. It does not provide implementations of these interfaces.
<P>Each JMS provider supplies a set of message factories with its
<CODE>Session</CODE> object for creating instances of messages. This allows
a provider to use message implementations tailored to its specific needs.
<P>A provider must be prepared to accept message implementations that are
not its own. They may not be handled as efficiently as its own
implementation; however, they must be handled.
<P>Note the following exception case when a provider is handling a foreign
message implementation. If the foreign message implementation contains a
<CODE>JMSReplyTo</CODE> header field that is set to a foreign destination
implementation, the provider is not required to handle or preserve the
value of this header field.
<H4>Message Selectors</H4>
<P>A JMS message selector allows a client to specify, by
header field references and property references, the
messages it is interested in. Only messages whose header
and property values
match the
selector are delivered. What it means for a message not to be delivered
depends on the <CODE>MessageConsumer</CODE> being used (see
<A HREF="QueueReceiver.html" title="interface in javax.jms"><CODE>QueueReceiver</CODE></A> and
<A HREF="TopicSubscriber.html" title="interface in javax.jms"><CODE>TopicSubscriber</CODE></A>).
<P>Message selectors cannot reference message body values.
<P>A message selector matches a message if the selector evaluates to
true when the message's header field values and property values are
substituted for their corresponding identifiers in the selector.
<P>A message selector is a <CODE>String</CODE> whose syntax is based on a
subset of
the SQL92 conditional expression syntax. If the value of a message selector
is an empty string, the value is treated as a null and indicates that there
is no message selector for the message consumer.
<P>The order of evaluation of a message selector is from left to right
within precedence level. Parentheses can be used to change this order.
<P>Predefined selector literals and operator names are shown here in
uppercase; however, they are case insensitive.
<P>A selector can contain:
<UL>
<LI>Literals:
<UL>
<LI>A string literal is enclosed in single quotes, with a single quote
represented by doubled single quote; for example,
<CODE>'literal'</CODE> and <CODE>'literal''s'</CODE>. Like
string literals in the Java programming language, these use the
Unicode character encoding.
<LI>An exact numeric literal is a numeric value without a decimal
point, such as <CODE>57</CODE>, <CODE>-957</CODE>, and
<CODE>+62</CODE>; numbers in the range of <CODE>long</CODE> are
supported. Exact numeric literals use the integer literal
syntax of the Java programming language.
<LI>An approximate numeric literal is a numeric value in scientific
notation, such as <CODE>7E3</CODE> and <CODE>-57.9E2</CODE>, or a
numeric value with a decimal, such as <CODE>7.</CODE>,
<CODE>-95.7</CODE>, and <CODE>+6.2</CODE>; numbers in the range of
<CODE>double</CODE> are supported. Approximate literals use the
floating-point literal syntax of the Java programming language.
<LI>The boolean literals <CODE>TRUE</CODE> and <CODE>FALSE</CODE>.
</UL>
<LI>Identifiers:
<UL>
<LI>An identifier is an unlimited-length sequence of letters
and digits, the first of which must be a letter. A letter is any
character for which the method <CODE>Character.isJavaLetter</CODE>
returns true. This includes <CODE>'_'</CODE> and <CODE>'$'</CODE>.
A letter or digit is any character for which the method
<CODE>Character.isJavaLetterOrDigit</CODE> returns true.
<LI>Identifiers cannot be the names <CODE>NULL</CODE>,
<CODE>TRUE</CODE>, and <CODE>FALSE</CODE>.
<LI>Identifiers cannot be <CODE>NOT</CODE>, <CODE>AND</CODE>,
<CODE>OR</CODE>, <CODE>BETWEEN</CODE>, <CODE>LIKE</CODE>,
<CODE>IN</CODE>, <CODE>IS</CODE>, or <CODE>ESCAPE</CODE>.
<LI>Identifiers are either header field references or property
references. The type of a property value in a message selector
corresponds to the type used to set the property. If a property
that does not exist in a message is referenced, its value is
<CODE>NULL</CODE>.
<LI>The conversions that apply to the get methods for properties do not
apply when a property is used in a message selector expression.
For example, suppose you set a property as a string value, as in the
following:
<PRE>myMessage.setStringProperty("NumberOfOrders", "2");</PRE>
The following expression in a message selector would evaluate to
false, because a string cannot be used in an arithmetic expression:
<PRE>"NumberOfOrders > 1"</PRE>
<LI>Identifiers are case-sensitive.
<LI>Message header field references are restricted to
<CODE>JMSDeliveryMode</CODE>, <CODE>JMSPriority</CODE>,
<CODE>JMSMessageID</CODE>, <CODE>JMSTimestamp</CODE>,
<CODE>JMSCorrelationID</CODE>, and <CODE>JMSType</CODE>.
<CODE>JMSMessageID</CODE>, <CODE>JMSCorrelationID</CODE>, and
<CODE>JMSType</CODE> values may be null and if so are treated as a
<CODE>NULL</CODE> value.
<LI>Any name beginning with <CODE>'JMSX'</CODE> is a JMS defined
property name.
<LI>Any name beginning with <CODE>'JMS_'</CODE> is a provider-specific
property name.
<LI>Any name that does not begin with <CODE>'JMS'</CODE> is an
application-specific property name.
</UL>
<LI>White space is the same as that defined for the Java programming
language: space, horizontal tab, form feed, and line terminator.
<LI>Expressions:
<UL>
<LI>A selector is a conditional expression; a selector that evaluates
to <CODE>true</CODE> matches; a selector that evaluates to
<CODE>false</CODE> or unknown does not match.
<LI>Arithmetic expressions are composed of themselves, arithmetic
operations, identifiers (whose value is treated as a numeric
literal), and numeric literals.
<LI>Conditional expressions are composed of themselves, comparison
operations, and logical operations.
</UL>
<LI>Standard bracketing <CODE>()</CODE> for ordering expression evaluation
is supported.
<LI>Logical operators in precedence order: <CODE>NOT</CODE>,
<CODE>AND</CODE>, <CODE>OR</CODE>
<LI>Comparison operators: <CODE>=</CODE>, <CODE>></CODE>, <CODE>>=</CODE>,
<CODE><</CODE>, <CODE><=</CODE>, <CODE><></CODE> (not equal)
<UL>
<LI>Only like type values can be compared. One exception is that it
is valid to compare exact numeric values and approximate numeric
values; the type conversion required is defined by the rules of
numeric promotion in the Java programming language. If the
comparison of non-like type values is attempted, the value of the
operation is false. If either of the type values evaluates to
<CODE>NULL</CODE>, the value of the expression is unknown.
<LI>String and boolean comparison is restricted to <CODE>=</CODE> and
<CODE><></CODE>. Two strings are equal
if and only if they contain the same sequence of characters.
</UL>
<LI>Arithmetic operators in precedence order:
<UL>
<LI><CODE>+</CODE>, <CODE>-</CODE> (unary)
<LI><CODE>*</CODE>, <CODE>/</CODE> (multiplication and division)
<LI><CODE>+</CODE>, <CODE>-</CODE> (addition and subtraction)
<LI>Arithmetic operations must use numeric promotion in the Java
programming language.
</UL>
<LI><CODE><I>arithmetic-expr1</I> [NOT] BETWEEN <I>arithmetic-expr2</I>
AND <I>arithmetic-expr3</I></CODE> (comparison operator)
<UL>
<LI><CODE>"age&nbsp;BETWEEN&nbsp;15&nbsp;AND&nbsp;19"</CODE> is
equivalent to
<CODE>"age&nbsp;>=&nbsp;15&nbsp;AND&nbsp;age&nbsp;<=&nbsp;19"</CODE>
<LI><CODE>"age&nbsp;NOT&nbsp;BETWEEN&nbsp;15&nbsp;AND&nbsp;19"</CODE>
is equivalent to
<CODE>"age&nbsp;<&nbsp;15&nbsp;OR&nbsp;age&nbsp;>&nbsp;19"</CODE>
</UL>
<LI><CODE><I>identifier</I> [NOT] IN (<I>string-literal1</I>,
<I>string-literal2</I>,...)</CODE> (comparison operator where
<CODE><I>identifier</I></CODE> has a <CODE>String</CODE> or
<CODE>NULL</CODE> value)
<UL>
<LI><CODE>"Country&nbsp;IN&nbsp;('&nbsp;UK',&nbsp;'US',&nbsp;'France')"</CODE>
is true for
<CODE>'UK'</CODE> and false for <CODE>'Peru'</CODE>; it is
equivalent to the expression
<CODE>"(Country&nbsp;=&nbsp;'&nbsp;UK')&nbsp;OR&nbsp;(Country&nbsp;=&nbsp;'&nbsp;US')&nbsp;OR&nbsp;(Country&nbsp;=&nbsp;'&nbsp;France')"</CODE>
<LI><CODE>"Country&nbsp;NOT&nbsp;IN&nbsp;('&nbsp;UK',&nbsp;'US',&nbsp;'France')"</CODE>
is false for <CODE>'UK'</CODE> and true for <CODE>'Peru'</CODE>; it
is equivalent to the expression
<CODE>"NOT&nbsp;((Country&nbsp;=&nbsp;'&nbsp;UK')&nbsp;OR&nbsp;(Country&nbsp;=&nbsp;'&nbsp;US')&nbsp;OR&nbsp;(Country&nbsp;=&nbsp;'&nbsp;France'))"</CODE>
<LI>If identifier of an <CODE>IN</CODE> or <CODE>NOT IN</CODE>
operation is <CODE>NULL</CODE>, the value of the operation is
unknown.
</UL>
<LI><CODE><I>identifier</I> [NOT] LIKE <I>pattern-value</I> [ESCAPE
<I>escape-character</I>]</CODE> (comparison operator, where
<CODE><I>identifier</I></CODE> has a <CODE>String</CODE> value;
<CODE><I>pattern-value</I></CODE> is a string literal where
<CODE>'_'</CODE> stands for any single character; <CODE>'%'</CODE>
stands for any sequence of characters, including the empty sequence;
and all other characters stand for themselves. The optional
<CODE><I>escape-character</I></CODE> is a single-character string
literal whose character is used to escape the special meaning of the
<CODE>'_'</CODE> and <CODE>'%'</CODE> in
<CODE><I>pattern-value</I></CODE>.)
<UL>
<LI><CODE>"phone&nbsp;LIKE&nbsp;'12%3'"</CODE> is true for
<CODE>'123'</CODE> or <CODE>'12993'</CODE> and false for
<CODE>'1234'</CODE>
<LI><CODE>"word&nbsp;LIKE&nbsp;'l_se'"</CODE> is true for
<CODE>'lose'</CODE> and false for <CODE>'loose'</CODE>
<LI><CODE>"underscored&nbsp;LIKE&nbsp;'\_%'&nbsp;ESCAPE&nbsp;'\'"</CODE>
is true for <CODE>'_foo'</CODE> and false for <CODE>'bar'</CODE>
<LI><CODE>"phone&nbsp;NOT&nbsp;LIKE&nbsp;'12%3'"</CODE> is false for
<CODE>'123'</CODE> or <CODE>'12993'</CODE> and true for
<CODE>'1234'</CODE>
<LI>If <CODE><I>identifier</I></CODE> of a <CODE>LIKE</CODE> or
<CODE>NOT LIKE</CODE> operation is <CODE>NULL</CODE>, the value
of the operation is unknown.
</UL>
<LI><CODE><I>identifier</I> IS NULL</CODE> (comparison operator that tests
for a null header field value or a missing property value)
<UL>
<LI><CODE>"prop_name&nbsp;IS&nbsp;NULL"</CODE>
</UL>
<LI><CODE><I>identifier</I> IS NOT NULL</CODE> (comparison operator that
tests for the existence of a non-null header field value or a property
value)
<UL>
<LI><CODE>"prop_name&nbsp;IS&nbsp;NOT&nbsp;NULL"</CODE>
</UL>
<P>JMS providers are required to verify the syntactic correctness of a
message selector at the time it is presented. A method that provides a
syntactically incorrect selector must result in a <CODE>JMSException</CODE>.
JMS providers may also optionally provide some semantic checking at the time
the selector is presented. Not all semantic checking can be performed at
the time a message selector is presented, because property types are not known.
<P>The following message selector selects messages with a message type
of car and color of blue and weight greater than 2500 pounds:
<PRE>"JMSType&nbsp;=&nbsp;'car'&nbsp;AND&nbsp;color&nbsp;=&nbsp;'blue'&nbsp;AND&nbsp;weight&nbsp;>&nbsp;2500"</PRE>
<H4>Null Values</H4>
<P>As noted above, property values may be <CODE>NULL</CODE>. The evaluation
of selector expressions containing <CODE>NULL</CODE> values is defined by
SQL92 <CODE>NULL</CODE> semantics. A brief description of these semantics
is provided here.
<P>SQL treats a <CODE>NULL</CODE> value as unknown. Comparison or arithmetic
with an unknown value always yields an unknown value.
<P>The <CODE>IS NULL</CODE> and <CODE>IS NOT NULL</CODE> operators convert
an unknown value into the respective <CODE>TRUE</CODE> and
<CODE>FALSE</CODE> values.
<P>The boolean operators use three-valued logic as defined by the
following tables:
<P><B>The definition of the <CODE>AND</CODE> operator</B>
<PRE>
| AND | T | F | U
+------+-------+-------+-------
| T | T | F | U
| F | F | F | F
| U | U | F | U
+------+-------+-------+-------
</PRE>
<P><B>The definition of the <CODE>OR</CODE> operator</B>
<PRE>
| OR | T | F | U
+------+-------+-------+--------
| T | T | T | T
| F | T | F | U
| U | T | U | U
+------+-------+-------+-------
</PRE>
<P><B>The definition of the <CODE>NOT</CODE> operator</B>
<PRE>
| NOT
+------+------
| T | F
| F | T
| U | U
+------+-------
</PRE>
<H4>Special Notes</H4>
<P>When used in a message selector, the <CODE>JMSDeliveryMode</CODE> header
field is treated as having the values <CODE>'PERSISTENT'</CODE> and
<CODE>'NON_PERSISTENT'</CODE>.
<P>Date and time values should use the standard <CODE>long</CODE>
millisecond value. When a date or time literal is included in a message
selector, it should be an integer literal for a millisecond value. The
standard way to produce millisecond values is to use
<CODE>java.util.Calendar</CODE>.
<P>Although SQL supports fixed decimal comparison and arithmetic, JMS
message selectors do not. This is the reason for restricting exact
numeric literals to those without a decimal (and the addition of
numerics with a decimal as an alternate representation for
approximate numeric values).
<P>SQL comments are not supported.
<P>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="MessageConsumer.html#receive()"><CODE>MessageConsumer.receive()</CODE></A>,
<A HREF="MessageConsumer.html#receive(long)"><CODE>MessageConsumer.receive(long)</CODE></A>,
<A HREF="MessageConsumer.html#receiveNoWait()"><CODE>MessageConsumer.receiveNoWait()</CODE></A>,
<A HREF="MessageListener.html#onMessage(javax.jms.Message)"><CODE>MessageListener.onMessage(Message)</CODE></A>,
<A HREF="BytesMessage.html" title="interface in javax.jms"><CODE>BytesMessage</CODE></A>,
<A HREF="MapMessage.html" title="interface in javax.jms"><CODE>MapMessage</CODE></A>,
<A HREF="ObjectMessage.html" title="interface in javax.jms"><CODE>ObjectMessage</CODE></A>,
<A HREF="StreamMessage.html" title="interface in javax.jms"><CODE>StreamMessage</CODE></A>,
<A HREF="TextMessage.html" title="interface in javax.jms"><CODE>TextMessage</CODE></A></DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
<A NAME="field_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Field Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#DEFAULT_DELIVERY_MODE">DEFAULT_DELIVERY_MODE</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The message producer's default delivery mode is <CODE>PERSISTENT</CODE>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#DEFAULT_PRIORITY">DEFAULT_PRIORITY</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The message producer's default priority is 4.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;long</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#DEFAULT_TIME_TO_LIVE">DEFAULT_TIME_TO_LIVE</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The message producer's default time to live is unlimited; the message
never expires.</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#acknowledge()">acknowledge</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Acknowledges all consumed messages of the session of this consumed
message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#clearBody()">clearBody</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Clears out the message body.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#clearProperties()">clearProperties</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Clears a message's properties.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getBooleanProperty(java.lang.String)">getBooleanProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>boolean</CODE> property with the
specified name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;byte</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getByteProperty(java.lang.String)">getByteProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>byte</CODE> property with the specified
name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;double</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getDoubleProperty(java.lang.String)">getDoubleProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>double</CODE> property with the specified
name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;float</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getFloatProperty(java.lang.String)">getFloatProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>float</CODE> property with the specified
name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getIntProperty(java.lang.String)">getIntProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>int</CODE> property with the specified
name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSCorrelationID()">getJMSCorrelationID</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the correlation ID for the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSCorrelationIDAsBytes()">getJMSCorrelationIDAsBytes</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the correlation ID as an array of bytes for the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSDeliveryMode()">getJMSDeliveryMode</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the <CODE>DeliveryMode</CODE> value specified for this message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="Destination.html" title="interface in javax.jms">Destination</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSDestination()">getJMSDestination</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the <CODE>Destination</CODE> object for this message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;long</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSExpiration()">getJMSExpiration</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the message's expiration value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSMessageID()">getJMSMessageID</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the message ID.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSPriority()">getJMSPriority</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the message priority level.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSRedelivered()">getJMSRedelivered</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets an indication of whether this message is being redelivered.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="Destination.html" title="interface in javax.jms">Destination</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSReplyTo()">getJMSReplyTo</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the <CODE>Destination</CODE> object to which a reply to this
message should be sent.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;long</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSTimestamp()">getJMSTimestamp</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the message timestamp.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getJMSType()">getJMSType</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the message type identifier supplied by the client when the
message was sent.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;long</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getLongProperty(java.lang.String)">getLongProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>long</CODE> property with the specified
name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getObjectProperty(java.lang.String)">getObjectProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the Java object property with the specified name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getPropertyNames()">getPropertyNames</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns an <CODE>Enumeration</CODE> of all the property names.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;short</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getShortProperty(java.lang.String)">getShortProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>short</CODE> property with the specified
name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#getStringProperty(java.lang.String)">getStringProperty</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the value of the <CODE>String</CODE> property with the specified
name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#propertyExists(java.lang.String)">propertyExists</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicates whether a property value exists.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setBooleanProperty(java.lang.String, boolean)">setBooleanProperty</A></B>(java.lang.String&nbsp;name,
boolean&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a <CODE>boolean</CODE> property value with the specified name into
the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setByteProperty(java.lang.String, byte)">setByteProperty</A></B>(java.lang.String&nbsp;name,
byte&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a <CODE>byte</CODE> property value with the specified name into
the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setDoubleProperty(java.lang.String, double)">setDoubleProperty</A></B>(java.lang.String&nbsp;name,
double&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a <CODE>double</CODE> property value with the specified name into
the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setFloatProperty(java.lang.String, float)">setFloatProperty</A></B>(java.lang.String&nbsp;name,
float&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a <CODE>float</CODE> property value with the specified name into
the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setIntProperty(java.lang.String, int)">setIntProperty</A></B>(java.lang.String&nbsp;name,
int&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets an <CODE>int</CODE> property value with the specified name into
the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSCorrelationID(java.lang.String)">setJMSCorrelationID</A></B>(java.lang.String&nbsp;correlationID)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the correlation ID for the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSCorrelationIDAsBytes(byte[])">setJMSCorrelationIDAsBytes</A></B>(byte[]&nbsp;correlationID)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the correlation ID as an array of bytes for the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSDeliveryMode(int)">setJMSDeliveryMode</A></B>(int&nbsp;deliveryMode)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the <CODE>DeliveryMode</CODE> value for this message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSDestination(javax.jms.Destination)">setJMSDestination</A></B>(<A HREF="Destination.html" title="interface in javax.jms">Destination</A>&nbsp;destination)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the <CODE>Destination</CODE> object for this message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSExpiration(long)">setJMSExpiration</A></B>(long&nbsp;expiration)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the message's expiration value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSMessageID(java.lang.String)">setJMSMessageID</A></B>(java.lang.String&nbsp;id)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the message ID.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSPriority(int)">setJMSPriority</A></B>(int&nbsp;priority)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the priority level for this message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSRedelivered(boolean)">setJMSRedelivered</A></B>(boolean&nbsp;redelivered)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Specifies whether this message is being redelivered.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSReplyTo(javax.jms.Destination)">setJMSReplyTo</A></B>(<A HREF="Destination.html" title="interface in javax.jms">Destination</A>&nbsp;replyTo)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the <CODE>Destination</CODE> object to which a reply to this
message should be sent.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSTimestamp(long)">setJMSTimestamp</A></B>(long&nbsp;timestamp)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the message timestamp.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setJMSType(java.lang.String)">setJMSType</A></B>(java.lang.String&nbsp;type)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the message type.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setLongProperty(java.lang.String, long)">setLongProperty</A></B>(java.lang.String&nbsp;name,
long&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a <CODE>long</CODE> property value with the specified name into
the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setObjectProperty(java.lang.String, java.lang.Object)">setObjectProperty</A></B>(java.lang.String&nbsp;name,
java.lang.Object&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a Java object property value with the specified name into the
message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setShortProperty(java.lang.String, short)">setShortProperty</A></B>(java.lang.String&nbsp;name,
short&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a <CODE>short</CODE> property value with the specified name into
the message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Message.html#setStringProperty(java.lang.String, java.lang.String)">setStringProperty</A></B>(java.lang.String&nbsp;name,
java.lang.String&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a <CODE>String</CODE> property value with the specified name into
the message.</TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ============ FIELD DETAIL =========== -->
<A NAME="field_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Field Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="DEFAULT_DELIVERY_MODE"><!-- --></A><H3>
DEFAULT_DELIVERY_MODE</H3>
<PRE>
static final int <B>DEFAULT_DELIVERY_MODE</B></PRE>
<DL>
<DD>The message producer's default delivery mode is <CODE>PERSISTENT</CODE>.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="DeliveryMode.html#PERSISTENT"><CODE>DeliveryMode.PERSISTENT</CODE></A>,
<A HREF="../../constant-values.html#javax.jms.Message.DEFAULT_DELIVERY_MODE">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="DEFAULT_PRIORITY"><!-- --></A><H3>
DEFAULT_PRIORITY</H3>
<PRE>
static final int <B>DEFAULT_PRIORITY</B></PRE>
<DL>
<DD>The message producer's default priority is 4.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../constant-values.html#javax.jms.Message.DEFAULT_PRIORITY">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="DEFAULT_TIME_TO_LIVE"><!-- --></A><H3>
DEFAULT_TIME_TO_LIVE</H3>
<PRE>
static final long <B>DEFAULT_TIME_TO_LIVE</B></PRE>
<DL>
<DD>The message producer's default time to live is unlimited; the message
never expires.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../constant-values.html#javax.jms.Message.DEFAULT_TIME_TO_LIVE">Constant Field Values</A></DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="acknowledge()"><!-- --></A><H3>
acknowledge</H3>
<PRE>
void <B>acknowledge</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Acknowledges all consumed messages of the session of this consumed
message.
<P>All consumed JMS messages support the <CODE>acknowledge</CODE>
method for use when a client has specified that its JMS session's
consumed messages are to be explicitly acknowledged. By invoking
<CODE>acknowledge</CODE> on a consumed message, a client acknowledges
all messages consumed by the session that the message was delivered to.
<P>Calls to <CODE>acknowledge</CODE> are ignored for both transacted
sessions and sessions specified to use implicit acknowledgement modes.
<P>A client may individually acknowledge each message as it is consumed,
or it may choose to acknowledge messages as an application-defined group
(which is done by calling acknowledge on the last received message of the group,
thereby acknowledging all messages consumed by the session.)
<P>Messages that have been received but not acknowledged may be
redelivered.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to acknowledge the
messages due to some internal error.
<DD><CODE><A HREF="IllegalStateException.html" title="class in javax.jms">IllegalStateException</A></CODE> - if this method is called on a closed
session.<DT><B>See Also:</B><DD><A HREF="Session.html#CLIENT_ACKNOWLEDGE"><CODE>Session.CLIENT_ACKNOWLEDGE</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="clearBody()"><!-- --></A><H3>
clearBody</H3>
<PRE>
void <B>clearBody</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Clears out the message body. Clearing a message's body does not clear
its header values or property entries.
<P>If this message body was read-only, calling this method leaves
the message body in the same state as an empty body in a newly
created message.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to clear the message
body due to some internal error.</DL>
</DD>
</DL>
<HR>
<A NAME="clearProperties()"><!-- --></A><H3>
clearProperties</H3>
<PRE>
void <B>clearProperties</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Clears a message's properties.
<P>The message's header fields and body are not cleared.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to clear the message
properties due to some internal error.</DL>
</DD>
</DL>
<HR>
<A NAME="getBooleanProperty(java.lang.String)"><!-- --></A><H3>
getBooleanProperty</H3>
<PRE>
boolean <B>getBooleanProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>boolean</CODE> property with the
specified name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>boolean</CODE> property
<DT><B>Returns:</B><DD>the <CODE>boolean</CODE> property value for the specified name
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="getByteProperty(java.lang.String)"><!-- --></A><H3>
getByteProperty</H3>
<PRE>
byte <B>getByteProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>byte</CODE> property with the specified
name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>byte</CODE> property
<DT><B>Returns:</B><DD>the <CODE>byte</CODE> property value for the specified name
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="getDoubleProperty(java.lang.String)"><!-- --></A><H3>
getDoubleProperty</H3>
<PRE>
double <B>getDoubleProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>double</CODE> property with the specified
name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>double</CODE> property
<DT><B>Returns:</B><DD>the <CODE>double</CODE> property value for the specified name
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="getFloatProperty(java.lang.String)"><!-- --></A><H3>
getFloatProperty</H3>
<PRE>
float <B>getFloatProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>float</CODE> property with the specified
name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>float</CODE> property
<DT><B>Returns:</B><DD>the <CODE>float</CODE> property value for the specified name
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="getIntProperty(java.lang.String)"><!-- --></A><H3>
getIntProperty</H3>
<PRE>
int <B>getIntProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>int</CODE> property with the specified
name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>int</CODE> property
<DT><B>Returns:</B><DD>the <CODE>int</CODE> property value for the specified name
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="getJMSCorrelationID()"><!-- --></A><H3>
getJMSCorrelationID</H3>
<PRE>
java.lang.String <B>getJMSCorrelationID</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the correlation ID for the message.
<P>This method is used to return correlation ID values that are
either provider-specific message IDs or application-specific
<CODE>String</CODE> values.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the correlation ID of a message as a <CODE>String</CODE>
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the correlation
ID due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSCorrelationID(java.lang.String)"><CODE>setJMSCorrelationID(String)</CODE></A>,
<A HREF="Message.html#getJMSCorrelationIDAsBytes()"><CODE>getJMSCorrelationIDAsBytes()</CODE></A>,
<A HREF="Message.html#setJMSCorrelationIDAsBytes(byte[])"><CODE>setJMSCorrelationIDAsBytes(byte[])</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSCorrelationIDAsBytes()"><!-- --></A><H3>
getJMSCorrelationIDAsBytes</H3>
<PRE>
byte[] <B>getJMSCorrelationIDAsBytes</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the correlation ID as an array of bytes for the message.
<P>The use of a <CODE>byte[]</CODE> value for
<CODE>JMSCorrelationID</CODE> is non-portable.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the correlation ID of a message as an array of bytes
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the correlation
ID due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSCorrelationID(java.lang.String)"><CODE>setJMSCorrelationID(String)</CODE></A>,
<A HREF="Message.html#getJMSCorrelationID()"><CODE>getJMSCorrelationID()</CODE></A>,
<A HREF="Message.html#setJMSCorrelationIDAsBytes(byte[])"><CODE>setJMSCorrelationIDAsBytes(byte[])</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSDeliveryMode()"><!-- --></A><H3>
getJMSDeliveryMode</H3>
<PRE>
int <B>getJMSDeliveryMode</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the <CODE>DeliveryMode</CODE> value specified for this message.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the delivery mode for this message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the
delivery mode due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSDeliveryMode(int)"><CODE>setJMSDeliveryMode(int)</CODE></A>,
<A HREF="DeliveryMode.html" title="interface in javax.jms"><CODE>DeliveryMode</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSDestination()"><!-- --></A><H3>
getJMSDestination</H3>
<PRE>
<A HREF="Destination.html" title="interface in javax.jms">Destination</A> <B>getJMSDestination</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the <CODE>Destination</CODE> object for this message.
<P>The <CODE>JMSDestination</CODE> header field contains the
destination to which the message is being sent.
<P>When a message is sent, this field is ignored. After completion
of the <CODE>send</CODE> or <CODE>publish</CODE> method, the field
holds the destination specified by the method.
<P>When a message is received, its <CODE>JMSDestination</CODE> value
must be equivalent to the value assigned when it was sent.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the destination of this message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the destination
due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSDestination(javax.jms.Destination)"><CODE>setJMSDestination(Destination)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSExpiration()"><!-- --></A><H3>
getJMSExpiration</H3>
<PRE>
long <B>getJMSExpiration</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the message's expiration value.
<P>When a message is sent, the <CODE>JMSExpiration</CODE> header field
is left unassigned. After completion of the <CODE>send</CODE> or
<CODE>publish</CODE> method, it holds the expiration time of the
message. This is the sum of the time-to-live value specified by the
client and the GMT at the time of the <CODE>send</CODE> or
<CODE>publish</CODE>.
<P>If the time-to-live is specified as zero, <CODE>JMSExpiration</CODE>
is set to zero to indicate that the message does not expire.
<P>When a message's expiration time is reached, a provider should
discard it. The JMS API does not define any form of notification of
message expiration.
<P>Clients should not receive messages that have expired; however,
the JMS API does not guarantee that this will not happen.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the time the message expires, which is the sum of the
time-to-live value specified by the client and the GMT at the
time of the send
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the message
expiration due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSExpiration(long)"><CODE>setJMSExpiration(long)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSMessageID()"><!-- --></A><H3>
getJMSMessageID</H3>
<PRE>
java.lang.String <B>getJMSMessageID</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the message ID.
<P>The <CODE>JMSMessageID</CODE> header field contains a value that
uniquely identifies each message sent by a provider.
<P>When a message is sent, <CODE>JMSMessageID</CODE> can be ignored.
When the <CODE>send</CODE> or <CODE>publish</CODE> method returns, it
contains a provider-assigned value.
<P>A <CODE>JMSMessageID</CODE> is a <CODE>String</CODE> value that
should function as a
unique key for identifying messages in a historical repository.
The exact scope of uniqueness is provider-defined. It should at
least cover all messages for a specific installation of a
provider, where an installation is some connected set of message
routers.
<P>All <CODE>JMSMessageID</CODE> values must start with the prefix
<CODE>'ID:'</CODE>.
Uniqueness of message ID values across different providers is
not required.
<P>Since message IDs take some effort to create and increase a
message's size, some JMS providers may be able to optimize message
overhead if they are given a hint that the message ID is not used by
an application. By calling the
<CODE>MessageProducer.setDisableMessageID</CODE> method, a JMS client
enables this potential optimization for all messages sent by that
message producer. If the JMS provider accepts this
hint, these messages must have the message ID set to null; if the
provider ignores the hint, the message ID must be set to its normal
unique value.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the message ID
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the message ID
due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSMessageID(java.lang.String)"><CODE>setJMSMessageID(String)</CODE></A>,
<A HREF="MessageProducer.html#setDisableMessageID(boolean)"><CODE>MessageProducer.setDisableMessageID(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSPriority()"><!-- --></A><H3>
getJMSPriority</H3>
<PRE>
int <B>getJMSPriority</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the message priority level.
<P>The JMS API defines ten levels of priority value, with 0 as the
lowest
priority and 9 as the highest. In addition, clients should consider
priorities 0-4 as gradations of normal priority and priorities 5-9
as gradations of expedited priority.
<P>The JMS API does not require that a provider strictly implement
priority
ordering of messages; however, it should do its best to deliver
expedited messages ahead of normal messages.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the default message priority
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the message
priority due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSPriority(int)"><CODE>setJMSPriority(int)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSRedelivered()"><!-- --></A><H3>
getJMSRedelivered</H3>
<PRE>
boolean <B>getJMSRedelivered</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets an indication of whether this message is being redelivered.
<P>If a client receives a message with the <CODE>JMSRedelivered</CODE>
field set,
it is likely, but not guaranteed, that this message was delivered
earlier but that its receipt was not acknowledged
at that time.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>true if this message is being redelivered
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the redelivered
state due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSRedelivered(boolean)"><CODE>setJMSRedelivered(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSReplyTo()"><!-- --></A><H3>
getJMSReplyTo</H3>
<PRE>
<A HREF="Destination.html" title="interface in javax.jms">Destination</A> <B>getJMSReplyTo</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the <CODE>Destination</CODE> object to which a reply to this
message should be sent.
<P>
<DD><DL>
<DT><B>Returns:</B><DD><CODE>Destination</CODE> to which to send a response to this
message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the
<CODE>JMSReplyTo</CODE> destination due to some
internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSReplyTo(javax.jms.Destination)"><CODE>setJMSReplyTo(Destination)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSTimestamp()"><!-- --></A><H3>
getJMSTimestamp</H3>
<PRE>
long <B>getJMSTimestamp</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the message timestamp.
<P>The <CODE>JMSTimestamp</CODE> header field contains the time a
message was
handed off to a provider to be sent. It is not the time the
message was actually transmitted, because the actual send may occur
later due to transactions or other client-side queueing of messages.
<P>When a message is sent, <CODE>JMSTimestamp</CODE> is ignored. When
the <CODE>send</CODE> or <CODE>publish</CODE>
method returns, it contains a time value somewhere in the interval
between the call and the return. The value is in the format of a normal
millis time value in the Java programming language.
<P>Since timestamps take some effort to create and increase a
message's size, some JMS providers may be able to optimize message
overhead if they are given a hint that the timestamp is not used by an
application. By calling the
<CODE>MessageProducer.setDisableMessageTimestamp</CODE> method, a JMS
client enables this potential optimization for all messages sent by
that message producer. If the JMS provider accepts this
hint, these messages must have the timestamp set to zero; if the
provider ignores the hint, the timestamp must be set to its normal
value.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the message timestamp
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the timestamp
due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSTimestamp(long)"><CODE>setJMSTimestamp(long)</CODE></A>,
<A HREF="MessageProducer.html#setDisableMessageTimestamp(boolean)"><CODE>MessageProducer.setDisableMessageTimestamp(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getJMSType()"><!-- --></A><H3>
getJMSType</H3>
<PRE>
java.lang.String <B>getJMSType</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Gets the message type identifier supplied by the client when the
message was sent.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the message type
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the message
type due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSType(java.lang.String)"><CODE>setJMSType(String)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getLongProperty(java.lang.String)"><!-- --></A><H3>
getLongProperty</H3>
<PRE>
long <B>getLongProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>long</CODE> property with the specified
name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>long</CODE> property
<DT><B>Returns:</B><DD>the <CODE>long</CODE> property value for the specified name
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="getObjectProperty(java.lang.String)"><!-- --></A><H3>
getObjectProperty</H3>
<PRE>
java.lang.Object <B>getObjectProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the Java object property with the specified name.
<P>This method can be used to return, in objectified format,
an object that has been stored as a property in the message with the
equivalent <CODE>setObjectProperty</CODE> method call, or its equivalent
primitive <CODE>set<I>type</I>Property</CODE> method.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the Java object property
<DT><B>Returns:</B><DD>the Java object property value with the specified name, in
objectified format (for example, if the property was set as an
<CODE>int</CODE>, an <CODE>Integer</CODE> is
returned); if there is no property by this name, a null value
is returned
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.</DL>
</DD>
</DL>
<HR>
<A NAME="getPropertyNames()"><!-- --></A><H3>
getPropertyNames</H3>
<PRE>
java.util.Enumeration <B>getPropertyNames</B>()
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns an <CODE>Enumeration</CODE> of all the property names.
<P>Note that JMS standard header fields are not considered
properties and are not returned in this enumeration.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>an enumeration of all the names of property values
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
names due to some internal error.</DL>
</DD>
</DL>
<HR>
<A NAME="getShortProperty(java.lang.String)"><!-- --></A><H3>
getShortProperty</H3>
<PRE>
short <B>getShortProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>short</CODE> property with the specified
name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>short</CODE> property
<DT><B>Returns:</B><DD>the <CODE>short</CODE> property value for the specified name
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="getStringProperty(java.lang.String)"><!-- --></A><H3>
getStringProperty</H3>
<PRE>
java.lang.String <B>getStringProperty</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Returns the value of the <CODE>String</CODE> property with the specified
name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>String</CODE> property
<DT><B>Returns:</B><DD>the <CODE>String</CODE> property value for the specified name;
if there is no property by this name, a null value is returned
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the property
value due to some internal error.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if this type conversion is invalid.</DL>
</DD>
</DL>
<HR>
<A NAME="propertyExists(java.lang.String)"><!-- --></A><H3>
propertyExists</H3>
<PRE>
boolean <B>propertyExists</B>(java.lang.String&nbsp;name)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Indicates whether a property value exists.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the property to test
<DT><B>Returns:</B><DD>true if the property exists
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to determine if the
property exists due to some internal error.</DL>
</DD>
</DL>
<HR>
<A NAME="setBooleanProperty(java.lang.String, boolean)"><!-- --></A><H3>
setBooleanProperty</H3>
<PRE>
void <B>setBooleanProperty</B>(java.lang.String&nbsp;name,
boolean&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a <CODE>boolean</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>boolean</CODE> property<DD><CODE>value</CODE> - the <CODE>boolean</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setByteProperty(java.lang.String, byte)"><!-- --></A><H3>
setByteProperty</H3>
<PRE>
void <B>setByteProperty</B>(java.lang.String&nbsp;name,
byte&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a <CODE>byte</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>byte</CODE> property<DD><CODE>value</CODE> - the <CODE>byte</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setDoubleProperty(java.lang.String, double)"><!-- --></A><H3>
setDoubleProperty</H3>
<PRE>
void <B>setDoubleProperty</B>(java.lang.String&nbsp;name,
double&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a <CODE>double</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>double</CODE> property<DD><CODE>value</CODE> - the <CODE>double</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setFloatProperty(java.lang.String, float)"><!-- --></A><H3>
setFloatProperty</H3>
<PRE>
void <B>setFloatProperty</B>(java.lang.String&nbsp;name,
float&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a <CODE>float</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>float</CODE> property<DD><CODE>value</CODE> - the <CODE>float</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setIntProperty(java.lang.String, int)"><!-- --></A><H3>
setIntProperty</H3>
<PRE>
void <B>setIntProperty</B>(java.lang.String&nbsp;name,
int&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets an <CODE>int</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>int</CODE> property<DD><CODE>value</CODE> - the <CODE>int</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setJMSCorrelationID(java.lang.String)"><!-- --></A><H3>
setJMSCorrelationID</H3>
<PRE>
void <B>setJMSCorrelationID</B>(java.lang.String&nbsp;correlationID)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the correlation ID for the message.
<P>A client can use the <CODE>JMSCorrelationID</CODE> header field to
link one message with another. A typical use is to link a response
message with its request message.
<P><CODE>JMSCorrelationID</CODE> can hold one of the following:
<UL>
<LI>A provider-specific message ID
<LI>An application-specific <CODE>String</CODE>
<LI>A provider-native <CODE>byte[]</CODE> value
</UL>
<P>Since each message sent by a JMS provider is assigned a message ID
value, it is convenient to link messages via message ID. All message ID
values must start with the <CODE>'ID:'</CODE> prefix.
<P>In some cases, an application (made up of several clients) needs to
use an application-specific value for linking messages. For instance,
an application may use <CODE>JMSCorrelationID</CODE> to hold a value
referencing some external information. Application-specified values
must not start with the <CODE>'ID:'</CODE> prefix; this is reserved for
provider-generated message ID values.
<P>If a provider supports the native concept of correlation ID, a JMS
client may need to assign specific <CODE>JMSCorrelationID</CODE> values
to match those expected by clients that do not use the JMS API. A
<CODE>byte[]</CODE> value is used for this
purpose. JMS providers without native correlation ID values are not
required to support <CODE>byte[]</CODE> values. The use of a
<CODE>byte[]</CODE> value for <CODE>JMSCorrelationID</CODE> is
non-portable.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>correlationID</CODE> - the message ID of a message being referred to
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the correlation
ID due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSCorrelationID()"><CODE>getJMSCorrelationID()</CODE></A>,
<A HREF="Message.html#getJMSCorrelationIDAsBytes()"><CODE>getJMSCorrelationIDAsBytes()</CODE></A>,
<A HREF="Message.html#setJMSCorrelationIDAsBytes(byte[])"><CODE>setJMSCorrelationIDAsBytes(byte[])</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSCorrelationIDAsBytes(byte[])"><!-- --></A><H3>
setJMSCorrelationIDAsBytes</H3>
<PRE>
void <B>setJMSCorrelationIDAsBytes</B>(byte[]&nbsp;correlationID)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the correlation ID as an array of bytes for the message.
<P>The array is copied before the method returns, so
future modifications to the array will not alter this message header.
<P>If a provider supports the native concept of correlation ID, a
JMS client may need to assign specific <CODE>JMSCorrelationID</CODE>
values to match those expected by native messaging clients.
JMS providers without native correlation ID values are not required to
support this method and its corresponding get method; their
implementation may throw a
<CODE>java.lang.UnsupportedOperationException</CODE>.
<P>The use of a <CODE>byte[]</CODE> value for
<CODE>JMSCorrelationID</CODE> is non-portable.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>correlationID</CODE> - the correlation ID value as an array of bytes
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the correlation
ID due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#setJMSCorrelationID(java.lang.String)"><CODE>setJMSCorrelationID(String)</CODE></A>,
<A HREF="Message.html#getJMSCorrelationID()"><CODE>getJMSCorrelationID()</CODE></A>,
<A HREF="Message.html#getJMSCorrelationIDAsBytes()"><CODE>getJMSCorrelationIDAsBytes()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSDeliveryMode(int)"><!-- --></A><H3>
setJMSDeliveryMode</H3>
<PRE>
void <B>setJMSDeliveryMode</B>(int&nbsp;deliveryMode)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the <CODE>DeliveryMode</CODE> value for this message.
<P>JMS providers set this field when a message is sent. This method
can be used to change the value for a message that has been received.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>deliveryMode</CODE> - the delivery mode for this message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the
delivery mode due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSDeliveryMode()"><CODE>getJMSDeliveryMode()</CODE></A>,
<A HREF="DeliveryMode.html" title="interface in javax.jms"><CODE>DeliveryMode</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSDestination(javax.jms.Destination)"><!-- --></A><H3>
setJMSDestination</H3>
<PRE>
void <B>setJMSDestination</B>(<A HREF="Destination.html" title="interface in javax.jms">Destination</A>&nbsp;destination)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the <CODE>Destination</CODE> object for this message.
<P>JMS providers set this field when a message is sent. This method
can be used to change the value for a message that has been received.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>destination</CODE> - the destination for this message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the destination
due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSDestination()"><CODE>getJMSDestination()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSExpiration(long)"><!-- --></A><H3>
setJMSExpiration</H3>
<PRE>
void <B>setJMSExpiration</B>(long&nbsp;expiration)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the message's expiration value.
<P>JMS providers set this field when a message is sent. This method
can be used to change the value for a message that has been received.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>expiration</CODE> - the message's expiration time
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the message
expiration due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSExpiration()"><CODE>getJMSExpiration()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSMessageID(java.lang.String)"><!-- --></A><H3>
setJMSMessageID</H3>
<PRE>
void <B>setJMSMessageID</B>(java.lang.String&nbsp;id)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the message ID.
<P>JMS providers set this field when a message is sent. This method
can be used to change the value for a message that has been received.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>id</CODE> - the ID of the message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the message ID
due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSMessageID()"><CODE>getJMSMessageID()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSPriority(int)"><!-- --></A><H3>
setJMSPriority</H3>
<PRE>
void <B>setJMSPriority</B>(int&nbsp;priority)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the priority level for this message.
<P>JMS providers set this field when a message is sent. This method
can be used to change the value for a message that has been received.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>priority</CODE> - the priority of this message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the message
priority due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSPriority()"><CODE>getJMSPriority()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSRedelivered(boolean)"><!-- --></A><H3>
setJMSRedelivered</H3>
<PRE>
void <B>setJMSRedelivered</B>(boolean&nbsp;redelivered)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Specifies whether this message is being redelivered.
<P>This field is set at the time the message is delivered. This
method can be used to change the value for a message that has
been received.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>redelivered</CODE> - an indication of whether this message is being
redelivered
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the redelivered
state due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSRedelivered()"><CODE>getJMSRedelivered()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSReplyTo(javax.jms.Destination)"><!-- --></A><H3>
setJMSReplyTo</H3>
<PRE>
void <B>setJMSReplyTo</B>(<A HREF="Destination.html" title="interface in javax.jms">Destination</A>&nbsp;replyTo)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the <CODE>Destination</CODE> object to which a reply to this
message should be sent.
<P>The <CODE>JMSReplyTo</CODE> header field contains the destination
where a reply
to the current message should be sent. If it is null, no reply is
expected. The destination may be either a <CODE>Queue</CODE> object or
a <CODE>Topic</CODE> object.
<P>Messages sent with a null <CODE>JMSReplyTo</CODE> value may be a
notification of some event, or they may just be some data the sender
thinks is of interest.
<P>Messages with a <CODE>JMSReplyTo</CODE> value typically expect a
response. A response is optional; it is up to the client to decide.
These messages are called requests. A message sent in response to a
request is called a reply.
<P>In some cases a client may wish to match a request it sent earlier
with a reply it has just received. The client can use the
<CODE>JMSCorrelationID</CODE> header field for this purpose.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>replyTo</CODE> - <CODE>Destination</CODE> to which to send a response to
this message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the
<CODE>JMSReplyTo</CODE> destination due to some
internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSReplyTo()"><CODE>getJMSReplyTo()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSTimestamp(long)"><!-- --></A><H3>
setJMSTimestamp</H3>
<PRE>
void <B>setJMSTimestamp</B>(long&nbsp;timestamp)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the message timestamp.
<P>JMS providers set this field when a message is sent. This method
can be used to change the value for a message that has been received.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>timestamp</CODE> - the timestamp for this message
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the timestamp
due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSTimestamp()"><CODE>getJMSTimestamp()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setJMSType(java.lang.String)"><!-- --></A><H3>
setJMSType</H3>
<PRE>
void <B>setJMSType</B>(java.lang.String&nbsp;type)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets the message type.
<P>Some JMS providers use a message repository that contains the
definitions of messages sent by applications. The <CODE>JMSType</CODE>
header field may reference a message's definition in the provider's
repository.
<P>The JMS API does not define a standard message definition repository,
nor does it define a naming policy for the definitions it contains.
<P>Some messaging systems require that a message type definition for
each application message be created and that each message specify its
type. In order to work with such JMS providers, JMS clients should
assign a value to <CODE>JMSType</CODE>, whether the application makes
use of it or not. This ensures that the field is properly set for those
providers that require it.
<P>To ensure portability, JMS clients should use symbolic values for
<CODE>JMSType</CODE> that can be configured at installation time to the
values defined in the current provider's message repository. If string
literals are used, they may not be valid type names for some JMS
providers.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>type</CODE> - the message type
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the message
type due to some internal error.<DT><B>See Also:</B><DD><A HREF="Message.html#getJMSType()"><CODE>getJMSType()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="setLongProperty(java.lang.String, long)"><!-- --></A><H3>
setLongProperty</H3>
<PRE>
void <B>setLongProperty</B>(java.lang.String&nbsp;name,
long&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a <CODE>long</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>long</CODE> property<DD><CODE>value</CODE> - the <CODE>long</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setObjectProperty(java.lang.String, java.lang.Object)"><!-- --></A><H3>
setObjectProperty</H3>
<PRE>
void <B>setObjectProperty</B>(java.lang.String&nbsp;name,
java.lang.Object&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a Java object property value with the specified name into the
message.
<P>Note that this method works only for the objectified primitive
object types (<CODE>Integer</CODE>, <CODE>Double</CODE>,
<CODE>Long</CODE> ...) and <CODE>String</CODE> objects.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the Java object property<DD><CODE>value</CODE> - the Java object property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageFormatException.html" title="class in javax.jms">MessageFormatException</A></CODE> - if the object is invalid
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setShortProperty(java.lang.String, short)"><!-- --></A><H3>
setShortProperty</H3>
<PRE>
void <B>setShortProperty</B>(java.lang.String&nbsp;name,
short&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a <CODE>short</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>short</CODE> property<DD><CODE>value</CODE> - the <CODE>short</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
<HR>
<A NAME="setStringProperty(java.lang.String, java.lang.String)"><!-- --></A><H3>
setStringProperty</H3>
<PRE>
void <B>setStringProperty</B>(java.lang.String&nbsp;name,
java.lang.String&nbsp;value)
throws <A HREF="JMSException.html" title="class in javax.jms">JMSException</A></PRE>
<DL>
<DD>Sets a <CODE>String</CODE> property value with the specified name into
the message.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the <CODE>String</CODE> property<DD><CODE>value</CODE> - the <CODE>String</CODE> property value to set
<DT><B>Throws:</B>
<DD><CODE><A HREF="JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to set the property
due to some internal error.
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the name is null or if the name is
an empty string.
<DD><CODE><A HREF="MessageNotWriteableException.html" title="class in javax.jms">MessageNotWriteableException</A></CODE> - if properties are read-only</DL>
</DD>
</DL>
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