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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>Cm (Project JXTA J2SE)</TITLE><META NAME="keywords" CONTENT="net.jxta.impl.cm.Cm class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Cm (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/Cm.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/impl/cm/Indexer.html" title="class in net.jxta.impl.cm"><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="Cm.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> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <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.impl.cm</FONT><BR>Class Cm</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>net.jxta.impl.cm.Cm</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.lang.Runnable</DD></DL><HR><DL><DT>public final class <B>Cm</B><DT>extends java.lang.Object<DT>implements java.lang.Runnable</DL><P>This class implements a limited document caching mechanism intended to provide cache for services that have a need for cache to search and exchange jxta documents. Only Core Services are intended to use this mechanism.<P><P><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 long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#DEFAULT_GC_MAX_INTERVAL">DEFAULT_GC_MAX_INTERVAL</A></B></CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.io.File</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#rootDir">rootDir</A></B></CODE><BR> file descriptor for the root of the cm</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#RootDirBase">RootDirBase</A></B></CODE><BR> the name we will use for the base directory</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/impl/cm/Cm.html#Cm(java.lang.String, boolean)">Cm</A></B>(java.lang.String areaName, boolean enableOptimize)</CODE><BR> Constructor for cm</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#Cm(java.lang.String, boolean, long, boolean)">Cm</A></B>(java.lang.String areaName, boolean enableOptimize, long gcinterval, boolean delta)</CODE><BR> Constructor for cm</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>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#createTmpName(net.jxta.document.StructuredDocument)">createTmpName</A></B>(<A HREF="../../../../net/jxta/document/StructuredDocument.html" title="interface in net.jxta.document">StructuredDocument</A> doc)</CODE><BR> Generates a random file name using doc hashcode</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/impl/cm/Cm.html#garbageCollect()">garbageCollect</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Vector</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getDeltas(java.lang.String)">getDeltas</A></B>(java.lang.String dn)</CODE><BR> returns all entries that are added since this method was last called</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Vector</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getEntries(java.lang.String)">getEntries</A></B>(java.lang.String dn)</CODE><BR> returns all entries that are cached</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getExpirationtime(java.lang.String, java.lang.String)">getExpirationtime</A></B>(java.lang.String dn, java.lang.String fn)</CODE><BR> Returns the maximum duration in milliseconds for which this document should cached by those other than the publisher. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected static <A HREF="../../../../net/jxta/impl/xindice/core/indexer/IndexQuery.html" title="class in net.jxta.impl.xindice.core.indexer">IndexQuery</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getIndexQuery(java.lang.String)">getIndexQuery</A></B>(java.lang.String value)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.io.ByteArrayInputStream</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getInputStream(java.lang.String, java.lang.String)">getInputStream</A></B>(java.lang.String dn, java.lang.String fn)</CODE><BR> Returns the inputStream of a specified file, in a specified dir</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getLifetime(java.lang.String, java.lang.String)">getLifetime</A></B>(java.lang.String dn, java.lang.String fn)</CODE><BR> Returns the relative time in milliseconds at which the file will expire.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Vector</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getRecords(java.lang.String, int, java.util.Vector, java.util.Vector)">getRecords</A></B>(java.lang.String dn, int threshold, java.util.Vector values, java.util.Vector expirations)</CODE><BR> Gets the list of all the files into the given folder</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Vector</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#getRecords(java.lang.String, int, java.util.Vector, java.util.Vector, boolean)">getRecords</A></B>(java.lang.String dn, int threshold, java.util.Vector values, java.util.Vector expirations, boolean purge)</CODE><BR> </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/impl/cm/Cm.html#remove(java.lang.String, java.lang.String)">remove</A></B>(java.lang.String dn, java.lang.String fn)</CODE><BR> Remove a file</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../net/jxta/document/StructuredDocument.html" title="interface in net.jxta.document">StructuredDocument</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/cm/Cm.html#restore(java.lang.String, java.lang.String)">restore</A></B>(java.lang.String dn, java.lang.String fn)</CODE>⌨️ 快捷键说明
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