objectmessage.html
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Java 2 Platform EE v1.3: Interface ObjectMessage
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javax.jms</FONT>
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Interface ObjectMessage</H2>
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<DT><B>All Superinterfaces:</B> <DD><A HREF="../../javax/jms/Message.html">Message</A></DD>
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<DT>public interface <B>ObjectMessage</B><DT>extends <A HREF="../../javax/jms/Message.html">Message</A></DL>
<P>
An <CODE>ObjectMessage</CODE> object is used to send a message that contains
a serializable object in the Java programming language ("Java object").
It inherits from the <CODE>Message</CODE> interface and adds a body
containing a single reference to an object. Only <CODE>Serializable</CODE>
Java objects can be used.
<P>If a collection of Java objects must be sent, one of the
<CODE>Collection</CODE> classes provided since JDK 1.2 can be used.
<P>When a client receives an <CODE>ObjectMessage</CODE>, it is in read-only
mode. If a client attempts to write to the message at this point, a
<CODE>MessageNotWriteableException</CODE> is thrown. If
<CODE>clearBody</CODE> is called, the message can now be both read from and
written to.
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<DT><B>See Also: </B><DD><A HREF="../../javax/jms/Session.html#createObjectMessage()"><CODE>Session.createObjectMessage()</CODE></A>,
<A HREF="../../javax/jms/Session.html#createObjectMessage(java.io.Serializable)"><CODE>Session.createObjectMessage(Serializable)</CODE></A>,
<A HREF="../../javax/jms/BytesMessage.html"><CODE>BytesMessage</CODE></A>,
<A HREF="../../javax/jms/MapMessage.html"><CODE>MapMessage</CODE></A>,
<A HREF="../../javax/jms/Message.html"><CODE>Message</CODE></A>,
<A HREF="../../javax/jms/StreamMessage.html"><CODE>StreamMessage</CODE></A>,
<A HREF="../../javax/jms/TextMessage.html"><CODE>TextMessage</CODE></A></DL>
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<TD><B>Fields inherited from interface javax.jms.<A HREF="../../javax/jms/Message.html">Message</A></B></TD>
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<TD><CODE><A HREF="../../javax/jms/Message.html#DEFAULT_DELIVERY_MODE">DEFAULT_DELIVERY_MODE</A>, <A HREF="../../javax/jms/Message.html#DEFAULT_PRIORITY">DEFAULT_PRIORITY</A>, <A HREF="../../javax/jms/Message.html#DEFAULT_TIME_TO_LIVE">DEFAULT_TIME_TO_LIVE</A></CODE></TD>
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<B>Method Summary</B></FONT></TD>
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<CODE> java.io.Serializable</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/jms/ObjectMessage.html#getObject()">getObject</A></B>()</CODE>
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