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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>ResolverService (Project JXTA J2SE)</TITLE><META NAME="keywords" CONTENT="net.jxta.resolver.ResolverService interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ResolverService (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/ResolverService.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/resolver/QueryHandler.html" title="interface in net.jxta.resolver"><B>PREV CLASS</B></A> <A HREF="../../../net/jxta/resolver/SrdiHandler.html" title="interface in net.jxta.resolver"><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="ResolverService.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 | <A HREF="#field_summary">FIELD</A> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | 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.resolver</FONT><BR>Interface ResolverService</H2><DL><DT><B>All Superinterfaces:</B> <DD><A HREF="../../../net/jxta/resolver/GenericResolver.html" title="interface in net.jxta.resolver">GenericResolver</A>, <A HREF="../../../net/jxta/platform/Module.html" title="interface in net.jxta.platform">Module</A>, <A HREF="../../../net/jxta/service/Service.html" title="interface in net.jxta.service">Service</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../net/jxta/impl/resolver/ResolverServiceImpl.html" title="class in net.jxta.impl.resolver">ResolverServiceImpl</A>, <A HREF="../../../net/jxta/impl/resolver/ResolverServiceInterface.html" title="class in net.jxta.impl.resolver">ResolverServiceInterface</A></DD></DL><HR><DL><DT>public interface <B>ResolverService</B><DT>extends <A HREF="../../../net/jxta/service/Service.html" title="interface in net.jxta.service">Service</A>, <A HREF="../../../net/jxta/resolver/GenericResolver.html" title="interface in net.jxta.resolver">GenericResolver</A></DL><P>ResolverService provides a generic mechanism for JXTA Services to send "Queries", and receive "Responses". It removes the burden for registered handlers in deal with :<ul type-disc> <li><p>Setting message tags, to ensure uniqueness of tags and ensures that messages are sent to the correct address, and group <li><p>Authentication, and Verification of credentials <li><p>drop rogue messages</ul> <p/>The ResolverService does not proccess the queries, nor does it not compose reponses. Handling of queries, and composition of responses are left up to the registered handlers. Services that wish to handle queries, and generate reponses must implement <A HREF="../../../net/jxta/resolver/QueryHandler.html" title="interface in net.jxta.resolver"><CODE>QueryHandler</CODE></A> <p/>Message Format: <ul><li>A Query message: <pre><?xml version="1.0" standalone='yes'?> <ResolverQuery> <handlername> name </handlername> <credentialServiecUri> uri </credentialServiecUri> <credentialToken> token </credentialToken> <srcpeerid> srcpeerid </srcpeerid> <queryid> id </queryid> <query> query </query> </ResolverQuery></pre> <p/>Note: queryid is unique to the originating node only, it can be utilized to match queries to responses.</p></li> <li>A Response Message: <pre><?xml version="1.0" standalone='yes'?> <ResolverResponse> <handlername> name </handlername> <credentialServiecUri> uri </credentialServiecUri> <credentialToken> token </credentialToken> <queryid> id </queryid> <response> response </response> </ResolverResponse></pre> <p/>Note: queryid is unique to the originating node only, it can be utilized to match queries to responses.</li></ul><P><P><DL><DT><B>See Also:</B><DD><A HREF="../../../net/jxta/service/Service.html" title="interface in net.jxta.service"><CODE>Service</CODE></A>, <A HREF="../../../net/jxta/resolver/GenericResolver.html" title="interface in net.jxta.resolver"><CODE>GenericResolver</CODE></A>, <A HREF="../../../net/jxta/resolver/QueryHandler.html" title="interface in net.jxta.resolver"><CODE>QueryHandler</CODE></A>, <A HREF="../../../net/jxta/protocol/ResolverQueryMsg.html" title="class in net.jxta.protocol"><CODE>ResolverQueryMsg</CODE></A>, <A HREF="../../../net/jxta/protocol/ResolverResponseMsg.html" title="class in net.jxta.protocol"><CODE>ResolverResponseMsg</CODE></A></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/resolver/ResolverService.html#OK">OK</A></B></CODE><BR> Returned by query handlers to indicate that the query has been resolved and a response has been sent.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/resolver/ResolverService.html#Repropagate">Repropagate</A></B></CODE><BR> Returned by query handlers to indicate that the query should be forwarded to the rest of the network.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_net.jxta.platform.Module"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface net.jxta.platform.<A HREF="../../../net/jxta/platform/Module.html" title="interface in net.jxta.platform">Module</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../net/jxta/platform/Module.html#START_AGAIN_PROGRESS">START_AGAIN_PROGRESS</A>, <A HREF="../../../net/jxta/platform/Module.html#START_AGAIN_STALLED">START_AGAIN_STALLED</A>, <A HREF="../../../net/jxta/platform/Module.html#START_OK">START_OK</A></CODE></TD></TR></TABLE> <!-- ======== 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="../../../net/jxta/resolver/QueryHandler.html" title="interface in net.jxta.resolver">QueryHandler</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/resolver/ResolverService.html#registerHandler(java.lang.String, net.jxta.resolver.QueryHandler)">registerHandler</A></B>(java.lang.String name, <A HREF="../../../net/jxta/resolver/QueryHandler.html" title="interface in net.jxta.resolver">QueryHandler</A> handler)</CODE><BR> Registers a given ResolveHandler, returns the previous handler registered under this name</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../net/jxta/resolver/SrdiHandler.html" title="interface in net.jxta.resolver">SrdiHandler</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/resolver/ResolverService.html#registerSrdiHandler(java.lang.String, net.jxta.resolver.SrdiHandler)">registerSrdiHandler</A></B>(java.lang.String name, <A HREF="../../../net/jxta/resolver/SrdiHandler.html" title="interface in net.jxta.resolver">SrdiHandler</A> handler)</CODE><BR> Registers a given SrdiHandler, returns the previous handler registered under this name</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">⌨️ 快捷键说明
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