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Java 2 Platform EE v1.3: Interface XASession
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javax.jms</FONT>
<BR>
Interface XASession</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD>java.lang.Runnable, <A HREF="../../javax/jms/Session.html">Session</A></DD>
</DL>
<DL>
<DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../javax/jms/XAQueueSession.html">XAQueueSession</A>, <A HREF="../../javax/jms/XATopicSession.html">XATopicSession</A></DD>
</DL>
<HR>
<DL>
<DT>public interface <B>XASession</B><DT>extends <A HREF="../../javax/jms/Session.html">Session</A></DL>
<P>
The <CODE>XASession</CODE> interface extends the capability of
<CODE>Session</CODE> by adding access to a JMS provider's support for the
Java Transaction API (JTA) (optional). This support takes the form of a
<CODE>javax.transaction.xa.XAResource</CODE> object. The functionality of
this object closely resembles that defined by the standard X/Open XA
Resource interface.
<P>An application server controls the transactional assignment of an
<CODE>XASession</CODE> by obtaining its <CODE>XAResource</CODE>. It uses
the <CODE>XAResource</CODE> to assign the session to a transaction, prepare
and commit work on the transaction, and so on.
<P>An <CODE>XAResource</CODE> provides some fairly sophisticated facilities
for interleaving work on multiple transactions, recovering a list of
transactions in progress, and so on. A JTA aware JMS provider must fully
implement this functionality. This could be done by using the services
of a database that supports XA, or a JMS provider may choose to implement
this functionality from scratch.
<P>A client of the application server is given what it thinks is a
regular JMS <CODE>Session</CODE>. Behind the scenes, the application server
controls the transaction management of the underlying
<CODE>XASession</CODE>.
<P>
<DL>
<DT><B>See Also: </B><DD><A HREF="../../javax/jms/Session.html"><CODE>Session</CODE></A></DL>
<HR>
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<TD><B>Fields inherited from interface javax.jms.<A HREF="../../javax/jms/Session.html">Session</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../javax/jms/Session.html#AUTO_ACKNOWLEDGE">AUTO_ACKNOWLEDGE</A>, <A HREF="../../javax/jms/Session.html#CLIENT_ACKNOWLEDGE">CLIENT_ACKNOWLEDGE</A>, <A HREF="../../javax/jms/Session.html#DUPS_OK_ACKNOWLEDGE">DUPS_OK_ACKNOWLEDGE</A></CODE></TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/jms/XASession.html#commit()">commit</A></B>()</CODE>
<BR>
Throws a <CODE>TransactionInProgressException</CODE>, since it should
not be called for an <CODE>XASession</CODE> object.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/jms/XASession.html#getTransacted()">getTransacted</A></B>()</CODE>
<BR>
Indicates whether the session is in transacted mode.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../javax/transaction/xa/XAResource.html">XAResource</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/jms/XASession.html#getXAResource()">getXAResource</A></B>()</CODE>
<BR>
Returns an XA resource to the caller.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/jms/XASession.html#rollback()">rollback</A></B>()</CODE>
<BR>
Throws a <CODE>TransactionInProgressException</CODE>, since it should
not be called for an <CODE>XASession</CODE> object.</TD>
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<TD><B>Methods inherited from interface javax.jms.<A HREF="../../javax/jms/Session.html">Session</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../javax/jms/Session.html#close()">close</A>, <A HREF="../../javax/jms/Session.html#createBytesMessage()">createBytesMessage</A>, <A HREF="../../javax/jms/Session.html#createMapMessage()">createMapMessage</A>, <A HREF="../../javax/jms/Session.html#createMessage()">createMessage</A>, <A HREF="../../javax/jms/Session.html#createObjectMessage()">createObjectMessage</A>, <A HREF="../../javax/jms/Session.html#createObjectMessage(java.io.Serializable)">createObjectMessage</A>, <A HREF="../../javax/jms/Session.html#createStreamMessage()">createStreamMessage</A>, <A HREF="../../javax/jms/Session.html#createTextMessage()">createTextMessage</A>, <A HREF="../../javax/jms/Session.html#createTextMessage(java.lang.String)">createTextMessage</A>, <A HREF="../../javax/jms/Session.html#getMessageListener()">getMessageListener</A>, <A HREF="../../javax/jms/Session.html#recover()">recover</A>, <A HREF="../../javax/jms/Session.html#run()">run</A>, <A HREF="../../javax/jms/Session.html#setMessageListener(javax.jms.MessageListener)">setMessageListener</A></CODE></TD>
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<A NAME="getXAResource()"><!-- --></A><H3>
getXAResource</H3>
<PRE>
public <A HREF="../../javax/transaction/xa/XAResource.html">XAResource</A> <B>getXAResource</B>()</PRE>
<DL>
<DD>Returns an XA resource to the caller.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>an XA resource to the caller</DL>
</DD>
</DL>
<HR>
<A NAME="getTransacted()"><!-- --></A><H3>
getTransacted</H3>
<PRE>
public boolean <B>getTransacted</B>()
throws <A HREF="../../javax/jms/JMSException.html">JMSException</A></PRE>
<DL>
<DD>Indicates whether the session is in transacted mode.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../javax/jms/Session.html#getTransacted()">getTransacted</A></CODE> in interface <CODE><A HREF="../../javax/jms/Session.html">Session</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true<DT><B>Throws:</B><DD><CODE><A HREF="../../javax/jms/JMSException.html">JMSException</A></CODE> - if the JMS provider fails to return the
transaction mode due to some internal error.</DL>
</DD>
</DL>
<HR>
<A NAME="commit()"><!-- --></A><H3>
commit</H3>
<PRE>
public void <B>commit</B>()
throws <A HREF="../../javax/jms/JMSException.html">JMSException</A></PRE>
<DL>
<DD>Throws a <CODE>TransactionInProgressException</CODE>, since it should
not be called for an <CODE>XASession</CODE> object.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../javax/jms/Session.html#commit()">commit</A></CODE> in interface <CODE><A HREF="../../javax/jms/Session.html">Session</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE><A HREF="../../javax/jms/TransactionInProgressException.html">TransactionInProgressException</A></CODE> - if the method is called on
an <CODE>XASession</CODE>.</DL>
</DD>
</DL>
<HR>
<A NAME="rollback()"><!-- --></A><H3>
rollback</H3>
<PRE>
public void <B>rollback</B>()
throws <A HREF="../../javax/jms/JMSException.html">JMSException</A></PRE>
<DL>
<DD>Throws a <CODE>TransactionInProgressException</CODE>, since it should
not be called for an <CODE>XASession</CODE> object.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../javax/jms/Session.html#rollback()">rollback</A></CODE> in interface <CODE><A HREF="../../javax/jms/Session.html">Session</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE><A HREF="../../javax/jms/TransactionInProgressException.html">TransactionInProgressException</A></CODE> - if the method is called on
an <CODE>XASession</CODE>.</DL>
</DD>
</DL>
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