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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.4.2_02) on Thu Nov 13 17:20:39 PST 2003 --><TITLE>ServerSession (Java 2 Platform Ent. Ed. v1.4)</TITLE><META NAME="keywords" CONTENT="javax.jms.ServerSession interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ServerSession (Java 2 Platform Ent. Ed. v1.4)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Ent. Ed. v1.4</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/jms/QueueSession.html" title="interface in javax.jms"><B>PREV CLASS</B></A> <A HREF="../../javax/jms/ServerSessionPool.html" title="interface in javax.jms"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="ServerSession.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.jms</FONT><BR>Interface ServerSession</H2><HR><DL><DT>public interface <B>ServerSession</B></DL><P>A <CODE>ServerSession</CODE> object is an application server object that is used by a server to associate a thread with a JMS session (optional). <P>A <CODE>ServerSession</CODE> implements two methods: <UL> <LI><CODE>getSession</CODE> - returns the <CODE>ServerSession</CODE>'s JMS session. <LI><CODE>start</CODE> - starts the execution of the <CODE>ServerSession</CODE> thread and results in the execution of the JMS session's <CODE>run</CODE> method. </UL> <P>A <CODE>ConnectionConsumer</CODE> implemented by a JMS provider uses a <CODE>ServerSession</CODE> to process one or more messages that have arrived. It does this by getting a <CODE>ServerSession</CODE> from the <CODE>ConnectionConsumer</CODE>'s <CODE>ServerSessionPool</CODE>; getting the <CODE>ServerSession</CODE>'s JMS session; loading it with the messages; and then starting the <CODE>ServerSession</CODE>. <P>In most cases the <CODE>ServerSession</CODE> will register some object it provides as the <CODE>ServerSession</CODE>'s thread run object. The <CODE>ServerSession</CODE>'s <CODE>start</CODE> method will call the thread's <CODE>start</CODE> method, which will start the new thread, and from it, call the <CODE>run</CODE> method of the <CODE>ServerSession</CODE>'s run object. This object will do some housekeeping and then call the <CODE>Session</CODE>'s <CODE>run</CODE> method. When <CODE>run</CODE> returns, the <CODE>ServerSession</CODE>'s run object can return the <CODE>ServerSession</CODE> to the <CODE>ServerSessionPool</CODE>, and the cycle starts again. <P>Note that the JMS API does not architect how the <CODE>ConnectionConsumer</CODE> loads the <CODE>Session</CODE> with messages. Since both the <CODE>ConnectionConsumer</CODE> and <CODE>Session</CODE> are implemented by the same JMS provider, they can accomplish the load using a private mechanism.<P><P><DL><DT><B>Version:</B></DT> <DD>1.0 - 9 March 1998</DD><DT><B>Author:</B></DT> <DD>Mark Hapner, Rich Burridge</DD><DT><B>See Also:</B><DD><A HREF="../../javax/jms/ServerSessionPool.html" title="interface in javax.jms"><CODE>ServerSessionPool</CODE></A>, <A HREF="../../javax/jms/ConnectionConsumer.html" title="interface in javax.jms"><CODE>ConnectionConsumer</CODE></A></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/jms/Session.html" title="interface in javax.jms">Session</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/jms/ServerSession.html#getSession()">getSession</A></B>()</CODE><BR> Return the <CODE>ServerSession</CODE>'s <CODE>Session</CODE>. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/jms/ServerSession.html#start()">start</A></B>()</CODE><BR> Cause the <CODE>Session</CODE>'s <CODE>run</CODE> method to be called to process messages that were just assigned to it.</TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="getSession()"><!-- --></A><H3>getSession</H3><PRE>public <A HREF="../../javax/jms/Session.html" title="interface in javax.jms">Session</A> <B>getSession</B>() throws <A HREF="../../javax/jms/JMSException.html" title="class in javax.jms">JMSException</A></PRE><DL><DD>Return the <CODE>ServerSession</CODE>'s <CODE>Session</CODE>. This must be a <CODE>Session</CODE> created by the same <CODE>Connection</CODE> that will be dispatching messages to it. The provider will assign one or more messages to the <CODE>Session</CODE> and then call <CODE>start</CODE> on the <CODE>ServerSession</CODE>.<P><DD><DL><DT><B>Returns:</B><DD>the server session's session<DT><B>Throws:</B><DD><CODE><A HREF="../../javax/jms/JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to get the associated session for this <CODE>ServerSession</CODE> due to some internal error.</DL></DD></DL><HR><A NAME="start()"><!-- --></A><H3>start</H3><PRE>public void <B>start</B>() throws <A HREF="../../javax/jms/JMSException.html" title="class in javax.jms">JMSException</A></PRE><DL><DD>Cause the <CODE>Session</CODE>'s <CODE>run</CODE> method to be called to process messages that were just assigned to it.<P><DD><DL><DT><B>Throws:</B><DD><CODE><A HREF="../../javax/jms/JMSException.html" title="class in javax.jms">JMSException</A></CODE> - if the JMS provider fails to start the server session to process messages due to some internal error.</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Ent. Ed. v1.4</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/jms/QueueSession.html" title="interface in javax.jms"><B>PREV CLASS</B></A> <A HREF="../../javax/jms/ServerSessionPool.html" title="interface in javax.jms"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="ServerSession.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_bottom"></A><!-- ======== END OF BOTTOM NAVBAR ======= --><HR><font size="-1"><a href="http://java.sun.com/webapps/bugreport">Submit a bug or feature</a> <p>Copyright 2003 Sun Microsystems, Inc. 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