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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><!-- Generated by javadoc (build 1.5.0_07) on Sun May 06 17:59:51 GMT 2007 --><TITLE>CachedBdbMap (Heritrix 1.12.1)</TITLE><META NAME="keywords" CONTENT="org.archive.util.CachedBdbMap class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="CachedBdbMap (Heritrix 1.12.1)";}</SCRIPT><NOSCRIPT></NOSCRIPT></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=2 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/CachedBdbMap.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></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../org/archive/util/BloomFilter64bit.html" title="class in org.archive.util"><B>PREV CLASS</B></A> <A HREF="../../../org/archive/util/CachedBdbMap.DbEnvironmentEntry.html" title="class in org.archive.util"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?org/archive/util/CachedBdbMap.html" target="_top"><B>FRAMES</B></A> <A HREF="CachedBdbMap.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: <A HREF="#nested_class_summary">NESTED</A> | <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">org.archive.util</FONT><BR>Class CachedBdbMap<K,V></H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by ">java.util.AbstractMap<K,V> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>org.archive.util.CachedBdbMap<K,V></B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.io.Serializable, java.util.Map<K,V></DD></DL><HR><DL><DT><PRE>public class <B>CachedBdbMap<K,V></B><DT>extends java.util.AbstractMap<K,V><DT>implements java.util.Map<K,V>, java.io.Serializable</DL></PRE><P>A BDB JE backed hashmap. It extends the normal BDB JE map implementation by holding a cache of soft referenced objects. That is objects are not written to disk until they are not referenced by any other object and therefore can be Garbage Collected.<P><P><DL><DT><B>Author:</B></DT> <DD>John Erik Halse, stack, gojomo</DD><DT><B>See Also:</B><DD><A HREF="../../../serialized-form.html#org.archive.util.CachedBdbMap">Serialized Form</A></DL><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"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Nested Class Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected static class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.DbEnvironmentEntry.html" title="class in org.archive.util">CachedBdbMap.DbEnvironmentEntry</A></B></CODE><BR> Simple structure to keep needed information about a DB Environment.</TD></TR></TABLE> <A NAME="nested_classes_inherited_from_class_java.util.Map"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Nested classes/interfaces inherited from interface java.util.Map</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>java.util.Map.Entry<K,V></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"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Field Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected com.sleepycat.je.Database</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#db">db</A></B></CODE><BR> The BDB JE database used for this instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected com.sleepycat.collections.StoredSortedMap</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#diskMap">diskMap</A></B></CODE><BR> The Collection view of the BDB JE database used for this instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#diskMapSize">diskMapSize</A></B></CODE><BR> The number of objects in the diskMap StoredMap.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected static java.lang.reflect.Field</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#referentField">referentField</A></B></CODE><BR> Reference to the Reference#referent Field.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.ref.ReferenceQueue<<A HREF="../../../org/archive/util/CachedBdbMap.html" title="type parameter in CachedBdbMap">V</A>></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#refQueue">refQueue</A></B></CODE><BR> </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"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#CachedBdbMap(java.io.File, java.lang.String, java.lang.Class, java.lang.Class)">CachedBdbMap</A></B>(java.io.File dbDir, java.lang.String dbName, java.lang.Class<<A HREF="../../../org/archive/util/CachedBdbMap.html" title="type parameter in CachedBdbMap">K</A>> keyClass, java.lang.Class<<A HREF="../../../org/archive/util/CachedBdbMap.html" title="type parameter in CachedBdbMap">V</A>> valueClass)</CODE><BR> A constructor for creating a new CachedBdbMap.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#CachedBdbMap(java.lang.String)">CachedBdbMap</A></B>(java.lang.String dbName)</CODE><BR> 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"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></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="../../../org/archive/util/CachedBdbMap.html#clear()">clear</A></B>()</CODE><BR> Note that a call to this method CLOSEs the underlying bdbje.</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="../../../org/archive/util/CachedBdbMap.html#close()">close</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="../../../org/archive/util/CachedBdbMap.html#containsKey(java.lang.Object)">containsKey</A></B>(java.lang.Object key)</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="../../../org/archive/util/CachedBdbMap.html#containsValue(java.lang.Object)">containsValue</A></B>(java.lang.Object value)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected com.sleepycat.collections.StoredSortedMap</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#createDiskMap(com.sleepycat.je.Database, com.sleepycat.bind.serial.StoredClassCatalog, java.lang.Class, java.lang.Class)">createDiskMap</A></B>(com.sleepycat.je.Database database, com.sleepycat.bind.serial.StoredClassCatalog classCatalog, java.lang.Class keyClass, java.lang.Class valueClass)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Set<java.util.Map.Entry<<A HREF="../../../org/archive/util/CachedBdbMap.html" title="type parameter in CachedBdbMap">K</A>,<A HREF="../../../org/archive/util/CachedBdbMap.html" title="type parameter in CachedBdbMap">V</A>>></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#entrySet()">entrySet</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#finalize()">finalize</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/archive/util/CachedBdbMap.html" title="type parameter in CachedBdbMap">V</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#get(java.lang.Object)">get</A></B>(java.lang.Object object)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/util/CachedBdbMap.html#getDatabaseName()">getDatabaseName</A></B>()</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="../../../org/archive/util/CachedBdbMap.html#initialize(com.sleepycat.je.Environment, java.lang.Class, java.lang.Class, com.sleepycat.bind.serial.StoredClassCatalog)">initialize</A></B>(com.sleepycat.je.Environment env, java.lang.Class keyClass,?? 快捷鍵說明
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