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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>LightWeightPeerGroup (Project JXTA J2SE)</TITLE><META NAME="keywords" CONTENT="net.jxta.peergroup.LightWeightPeerGroup class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="LightWeightPeerGroup (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/LightWeightPeerGroup.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"> PREV CLASS <A HREF="../../../net/jxta/peergroup/NetPeerGroupID.html" title="class in net.jxta.peergroup"><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="LightWeightPeerGroup.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 | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <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.peergroup</FONT><BR>Class LightWeightPeerGroup</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><B>net.jxta.peergroup.LightWeightPeerGroup</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../net/jxta/platform/Module.html" title="interface in net.jxta.platform">Module</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html" title="interface in net.jxta.peergroup">PeerGroup</A>, <A HREF="../../../net/jxta/impl/peergroup/RefPeerGroup.html" title="interface in net.jxta.impl.peergroup">RefPeerGroup</A>, <A HREF="../../../net/jxta/service/Service.html" title="interface in net.jxta.service">Service</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../net/jxta/ext/rdvpeergroup/RdvPeerGroup.html" title="class in net.jxta.ext.rdvpeergroup">RdvPeerGroup</A></DD></DL><HR><DL><DT>public class <B>LightWeightPeerGroup</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../net/jxta/impl/peergroup/RefPeerGroup.html" title="interface in net.jxta.impl.peergroup">RefPeerGroup</A></DL><P>LightWeightPeerGroup is a class intended to help building PeerGroup that can inherit one or more services from a parent PeerGroup. An LightWeightPeerGroup implements PeerGroup and is to be used like a PeerGroup by applications. This class is intended to be extended/implemented. Note: unlike implementations of peer groups that existed until JXTA 2.2, LightweightPeergroup permits to implement groups that borrow all or part of their services to a parent group. One needs to remember that peers in various such subgroups of a given parent groups may implicitly all share the same services if that is what the PeerGroup implementing LightWeightPeerGroup is doing. Please refer to the documentation of PeerGroups extending LightWeigthPeerGroup do understand which services are shared, and which are not.<P><P><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><A NAME="nested_class_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Nested Class Summary</B></FONT></TD></TR></TABLE> <A NAME="nested_classes_inherited_from_class_net.jxta.peergroup.PeerGroup"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Nested classes inherited from class net.jxta.peergroup.<A HREF="../../../net/jxta/peergroup/PeerGroup.html" title="interface in net.jxta.peergroup">PeerGroup</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../net/jxta/peergroup/PeerGroup.GlobalRegistry.html" title="class in net.jxta.peergroup">PeerGroup.GlobalRegistry</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.IdMaker.html" title="class in net.jxta.peergroup">PeerGroup.IdMaker</A></CODE></TD></TR></TABLE> <!-- =========== 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></TABLE> <A NAME="fields_inherited_from_class_net.jxta.peergroup.PeerGroup"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface net.jxta.peergroup.<A HREF="../../../net/jxta/peergroup/PeerGroup.html" title="interface in net.jxta.peergroup">PeerGroup</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../net/jxta/peergroup/PeerGroup.html#accessClassID">accessClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#allPurposePeerGroupSpecID">allPurposePeerGroupSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#applicationClassID">applicationClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#Both">Both</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#DEFAULT_EXPIRATION">DEFAULT_EXPIRATION</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#DEFAULT_LIFETIME">DEFAULT_LIFETIME</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#discoveryClassID">discoveryClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#endpointClassID">endpointClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#FromParent">FromParent</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#globalRegistry">globalRegistry</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#Here">Here</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#httpProtoClassID">httpProtoClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#membershipClassID">membershipClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#peerGroupClassID">peerGroupClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#peerinfoClassID">peerinfoClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#pipeClassID">pipeClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#proxyClassID">proxyClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refAccessSpecID">refAccessSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refDiscoverySpecID">refDiscoverySpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refEndpointSpecID">refEndpointSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refHttpProtoSpecID">refHttpProtoSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refMembershipSpecID">refMembershipSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refNetPeerGroupSpecID">refNetPeerGroupSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refPeerinfoSpecID">refPeerinfoSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refPipeSpecID">refPipeSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refPlatformSpecID">refPlatformSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refProxySpecID">refProxySpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refRelayProtoSpecID">refRelayProtoSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refRendezvousSpecID">refRendezvousSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refResolverSpecID">refResolverSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refRouterProtoSpecID">refRouterProtoSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refShellSpecID">refShellSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refStartNetPeerGroupSpecID">refStartNetPeerGroupSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refTcpProtoSpecID">refTcpProtoSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#refTlsProtoSpecID">refTlsProtoSpecID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#relayProtoClassID">relayProtoClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#rendezvousClassID">rendezvousClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#resolverClassID">resolverClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#routerProtoClassID">routerProtoClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#tcpProtoClassID">tcpProtoClassID</A>, <A HREF="../../../net/jxta/peergroup/PeerGroup.html#tlsProtoClassID">tlsProtoClassID</A></CODE></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 ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../net/jxta/peergroup/LightWeightPeerGroup.html#LightWeightPeerGroup(net.jxta.protocol.PeerGroupAdvertisement)">LightWeightPeerGroup</A></B>(<A HREF="../../../net/jxta/protocol/PeerGroupAdvertisement.html" title="class in net.jxta.protocol">PeerGroupAdvertisement</A> adv)</CODE><BR> Constructor All classes that extend this class must invoke this constructor.</TD></TR></TABLE> <!-- ========== 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/peergroup/LightWeightPeerGroup.html#compatible(net.jxta.document.Element)">compatible</A></B>(<A HREF="../../../net/jxta/document/Element.html" title="interface in net.jxta.document">Element</A> compat)</CODE><BR> Return true if the provided compatibility statement is compatible with this group.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../net/jxta/access/AccessService.html" title="interface in net.jxta.access">AccessService</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/peergroup/LightWeightPeerGroup.html#getAccessService()">getAccessService</A></B>()</CODE><BR> Return the Access Service for this Peer Group. This service is present in every Peer Group.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../net/jxta/protocol/ModuleImplAdvertisement.html" title="class in net.jxta.protocol">ModuleImplAdvertisement</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/peergroup/LightWeightPeerGroup.html#getAllPurposePeerGroupImplAdvertisement()">getAllPurposePeerGroupImplAdvertisement</A></B>()</CODE><BR> Get an all purpose peerGroup ModuleImplAdvertisement that is compatible with this group. This impl adv can be used to create any group that relies only on the standard services. Or to derive other impl advs, using this impl advertisement as a basis.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../net/jxta/protocol/ConfigParams.html" title="class in net.jxta.protocol">ConfigParams</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../net/jxta/peergroup/LightWeightPeerGroup.html#getConfigAdvertisement()">getConfigAdvertisement</A></B>()</CODE><BR> Returns the config advertisment for this peer in this group (if any).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../net/jxta/discovery/DiscoveryService.html" title="interface in net.jxta.discovery">DiscoveryService</A></CODE></FONT></TD>⌨️ 快捷键说明
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