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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><TITLE>Messenger (Project JXTA J2SE)</TITLE><META NAME="keywords" CONTENT="net.jxta.endpoint.Messenger interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Messenger (Project JXTA J2SE)";}</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="class-use/Messenger.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </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><a href='http://www.jxta.org' target='_blank'>Project JXTA</a></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../net/jxta/endpoint/MessageTransport.html" title="interface in net.jxta.endpoint"><B>PREV CLASS</B></A> <A HREF="../../../net/jxta/endpoint/MessengerEventListener.html" title="interface in net.jxta.endpoint"><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="Messenger.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">net.jxta.endpoint</FONT><BR>Interface Messenger</H2><DL><DT><B>All Superinterfaces:</B> <DD><A HREF="../../../net/jxta/endpoint/EndpointMessenger.html" title="interface in net.jxta.endpoint">EndpointMessenger</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../net/jxta/impl/endpoint/BasicMessenger.html" title="class in net.jxta.impl.endpoint">BasicMessenger</A>, <A HREF="../../../net/jxta/impl/endpoint/CrossGroupMessenger.html" title="class in net.jxta.impl.endpoint">CrossGroupMessenger</A></DD></DL><HR><DL><DT>public interface <B>Messenger</B><DT>extends <A HREF="../../../net/jxta/endpoint/EndpointMessenger.html" title="interface in net.jxta.endpoint">EndpointMessenger</A></DL><P>A Messenger is used to send messages to a destination.<P><P><DL><DT><B>See Also:</B><DD><A HREF="../../../net/jxta/endpoint/EndpointService.html" title="interface in net.jxta.endpoint"><CODE>EndpointService</CODE></A>, <A HREF="../../../net/jxta/endpoint/EndpointAddress.html" title="class in net.jxta.endpoint"><CODE>EndpointAddress</CODE></A>, <A HREF="../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint"><CODE>Message</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> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/endpoint/Messenger.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object target)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../net/jxta/endpoint/EndpointAddress.html" title="class in net.jxta.endpoint">EndpointAddress</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/endpoint/Messenger.html#getLogicalDestinationAddress()">getLogicalDestinationAddress</A></B>()</CODE><BR> Returns the logical destination of this messenger. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/endpoint/Messenger.html#hashCode()">hashCode</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/endpoint/Messenger.html#isClosed()">isClosed</A></B>()</CODE><BR> Returns <code>true</code> if this messenger is closed and no longer accepting messages to be sent. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/endpoint/Messenger.html#isIdle()">isIdle</A></B>()</CODE><BR> Returns <code>true</code> if this messenger is not currently sending any messages and the messenger has not been used for "a long time". </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/endpoint/Messenger.html#isSynchronous()">isSynchronous</A></B>()</CODE><BR> Returns <code>true</code> if the <code>sendMessage</code> methods of this messenger are fully synchronous. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/endpoint/Messenger.html#sendMessage(net.jxta.endpoint.Message, java.lang.String, java.lang.String)">sendMessage</A></B>(<A HREF="../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A> msg, java.lang.String service, java.lang.String serviceParam)</CODE><BR> Sends a message to the destination. </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="../../../net/jxta/endpoint/Messenger.html#sendMessage(net.jxta.endpoint.Message, java.lang.String, java.lang.String, net.jxta.endpoint.OutgoingMessageEventListener)">sendMessage</A></B>(<A HREF="../../../net/jxta/endpoint/Message.html" title="class in net.jxta.endpoint">Message</A> msg, java.lang.String service, java.lang.String serviceParam, <A HREF="../../../net/jxta/endpoint/OutgoingMessageEventListener.html" title="interface in net.jxta.endpoint">OutgoingMessageEventListener</A> listener)</CODE><BR> Sends a message to the destination. </TD></TR></TABLE> <A NAME="methods_inherited_from_class_net.jxta.endpoint.EndpointMessenger"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from interface net.jxta.endpoint.<A HREF="../../../net/jxta/endpoint/EndpointMessenger.html" title="interface in net.jxta.endpoint">EndpointMessenger</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../net/jxta/endpoint/EndpointMessenger.html#close()">close</A>, <A HREF="../../../net/jxta/endpoint/EndpointMessenger.html#getDestinationAddress()">getDestinationAddress</A>, <A HREF="../../../net/jxta/endpoint/EndpointMessenger.html#getDestinationAddressObject()">getDestinationAddressObject</A>, <A HREF="../../../net/jxta/endpoint/EndpointMessenger.html#sendMessage(net.jxta.endpoint.Message)">sendMessage</A></CODE></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="equals(java.lang.Object)"><!-- --></A><H3>equals</H3><PRE>public boolean <B>equals</B>(java.lang.Object target)</PRE><DL><DD><P><DD><DL></DL></DD><DD><DL></DL></DD></DL><HR><A NAME="hashCode()"><!-- --></A><H3>hashCode</H3><PRE>public int <B>hashCode</B>()</PRE><DL><DD><P><DD><DL></DL></DD><DD><DL></DL></DD></DL><HR><A NAME="getLogicalDestinationAddress()"><!-- --></A><H3>getLogicalDestinationAddress</H3><PRE>public <A HREF="../../../net/jxta/endpoint/EndpointAddress.html" title="class in net.jxta.endpoint">EndpointAddress</A> <B>getLogicalDestinationAddress</B>()</PRE><DL><DD>Returns the logical destination of this messenger. This may be a different address than is returned by <A HREF="../../../net/jxta/endpoint/EndpointMessenger.html#getDestinationAddress()"><CODE>getDestinationAddress</CODE></A> and refers to the entity which is located at the destination address. <p/>By analogy, a telephone number would be the destination address, and the owner of that telephone number would be the logical destination. Each logical destination may be known by one or more destination addresses.<P><DD><DL></DL></DD><DD><DL>?? 快捷鍵說明
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