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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>Metadata (Project JXTA J2SE)</TITLE><META NAME="keywords" CONTENT="net.jxta.codat.Metadata class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Metadata (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/Metadata.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/codat/CodatID.html" title="class in net.jxta.codat"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="Metadata.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="#fields_inherited_from_class_net.jxta.codat.Codat">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_net.jxta.codat.Codat">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | METHOD</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.codat</FONT><BR>Class Metadata</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../net/jxta/codat/Codat.html" title="class in net.jxta.codat">net.jxta.codat.Codat</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><B>net.jxta.codat.Metadata</B></PRE><HR><DL><DT>public class <B>Metadata</B><DT>extends <A HREF="../../../net/jxta/codat/Codat.html" title="class in net.jxta.codat">Codat</A></DL><P>This class represents a <b>metadata</b> Codat. Medata Codats are special codats that contain information about another codats. Multiple medata codats can refer to the same codat. Medata codats can hold any kinds of information about a codat, such as a symbolic name, description, index and seraching information, etc. <p> Codats are JXTA objects that can hold both data or code. The core platform API is making available the Codat APIs to JXTA services and applications as a placeholder for all contents they are manipulating. The Core is not making any references to this class. The Codat class is offered as a standard way for applications and services to exchange any kinds of contents.<P><P><DL><DT><B>See Also:</B><DD><A HREF="../../../net/jxta/codat/Codat.html" title="class in net.jxta.codat"><CODE>Codat</CODE></A>, <A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat"><CODE>CodatID</CODE></A>, <A HREF="../../../net/jxta/document/Document.html" title="interface in net.jxta.document"><CODE>Document</CODE></A>, <A HREF="../../../net/jxta/document/StructuredDocument.html" title="interface in net.jxta.document"><CODE>StructuredDocument</CODE></A>, <A HREF="../../../net/jxta/document/StructuredTextDocument.html" title="interface in net.jxta.document"><CODE>StructuredTextDocument</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></TABLE> <A NAME="fields_inherited_from_class_net.jxta.codat.Codat"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class net.jxta.codat.<A HREF="../../../net/jxta/codat/Codat.html" title="class in net.jxta.codat">Codat</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../net/jxta/codat/Codat.html#doc">doc</A>, <A HREF="../../../net/jxta/codat/Codat.html#id">id</A>, <A HREF="../../../net/jxta/codat/Codat.html#metaId">metaId</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/codat/Metadata.html#Metadata(net.jxta.codat.CodatID, net.jxta.codat.CodatID, net.jxta.document.Document)">Metadata</A></B>(<A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat">CodatID</A> id, <A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat">CodatID</A> about, <A HREF="../../../net/jxta/document/Document.html" title="interface in net.jxta.document">Document</A> document)</CODE><BR> Construct a new Metadata instance from parameters for an existing Codat, a CodatID and a document.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../net/jxta/codat/Metadata.html#Metadata(net.jxta.peergroup.PeerGroupID, net.jxta.codat.CodatID, net.jxta.document.Document)">Metadata</A></B>(<A HREF="../../../net/jxta/peergroup/PeerGroupID.html" title="class in net.jxta.peergroup">PeerGroupID</A> groupID, <A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat">CodatID</A> about, <A HREF="../../../net/jxta/document/Document.html" title="interface in net.jxta.document">Document</A> document)</CODE><BR> Construct a new Codat with a new CodatId given a PeerGroupID and a document.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="methods_inherited_from_class_net.jxta.codat.Codat"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class net.jxta.codat.<A HREF="../../../net/jxta/codat/Codat.html" title="class in net.jxta.codat">Codat</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../net/jxta/codat/Codat.html#getCodatID()">getCodatID</A>, <A HREF="../../../net/jxta/codat/Codat.html#getDocument()">getDocument</A>, <A HREF="../../../net/jxta/codat/Codat.html#getMetaID()">getMetaID</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.Object</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="Metadata(net.jxta.peergroup.PeerGroupID, net.jxta.codat.CodatID, net.jxta.document.Document)"><!-- --></A><H3>Metadata</H3><PRE>public <B>Metadata</B>(<A HREF="../../../net/jxta/peergroup/PeerGroupID.html" title="class in net.jxta.peergroup">PeerGroupID</A> groupID, <A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat">CodatID</A> about, <A HREF="../../../net/jxta/document/Document.html" title="interface in net.jxta.document">Document</A> document) throws java.io.IOException</PRE><DL><DD>Construct a new Codat with a new CodatId given a PeerGroupID and a document.<P><DT><B>Parameters:</B><DD><CODE>groupID</CODE> - the group to which this metadata will be published<DD><CODE>about</CODE> - metadata for which this Codat is metadata<DD><CODE>document</CODE> - doc held by this codat.<DT><B>Throws:</B><DD><CODE>java.io.IOException</CODE> - if there is an error accessing the document.</DL><HR><A NAME="Metadata(net.jxta.codat.CodatID, net.jxta.codat.CodatID, net.jxta.document.Document)"><!-- --></A><H3>Metadata</H3><PRE>public <B>Metadata</B>(<A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat">CodatID</A> id, <A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat">CodatID</A> about, <A HREF="../../../net/jxta/document/Document.html" title="interface in net.jxta.document">Document</A> document)</PRE><DL><DD>Construct a new Metadata instance from parameters for an existing Codat, a CodatID and a document.<P><DT><B>Parameters:</B><DD><CODE>id</CODE> - CodatId of the new codat<DD><CODE>about</CODE> - CodatId for which this is a codat<DD><CODE>document</CODE> - Document hold by this codat</DL><!-- ============ METHOD DETAIL ========== --><!-- ========= 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="class-use/Metadata.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>JXTA J2SE</EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../net/jxta/codat/CodatID.html" title="class in net.jxta.codat"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="Metadata.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="#fields_inherited_from_class_net.jxta.codat.Codat">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_net.jxta.codat.Codat">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | METHOD</FONT></TD></TR></TABLE><A NAME="skip-navbar_bottom"></A><!-- ======== END OF BOTTOM NAVBAR ======= --><HR></BODY></HTML>⌨️ 快捷键说明
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