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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Fri Dec 06 19:57:08 CET 2002 --><TITLE>jakarta-turbine-2 2.2 API: Class TurbineGlobalCacheService</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <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/TurbineGlobalCacheService.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/apache/turbine/services/cache/TurbineGlobalCache.html"><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="TurbineGlobalCacheService.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <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><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.apache.turbine.services.cache</FONT><BR>Class TurbineGlobalCacheService</H2><PRE>java.lang.Object | +--<A HREF="../../../../../org/apache/turbine/services/BaseInitable.html">org.apache.turbine.services.BaseInitable</A> | +--<A HREF="../../../../../org/apache/turbine/services/BaseService.html">org.apache.turbine.services.BaseService</A> | +--<A HREF="../../../../../org/apache/turbine/services/TurbineBaseService.html">org.apache.turbine.services.TurbineBaseService</A> | +--<B>org.apache.turbine.services.cache.TurbineGlobalCacheService</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../org/apache/turbine/services/cache/GlobalCacheService.html">GlobalCacheService</A>, <A HREF="../../../../../org/apache/turbine/services/Initable.html">Initable</A>, java.lang.Runnable, <A HREF="../../../../../org/apache/turbine/services/Service.html">Service</A></DD></DL><HR><DL><DT>public class <B>TurbineGlobalCacheService</B><DT>extends <A HREF="../../../../../org/apache/turbine/services/TurbineBaseService.html">TurbineBaseService</A><DT>implements <A HREF="../../../../../org/apache/turbine/services/cache/GlobalCacheService.html">GlobalCacheService</A>, java.lang.Runnable</DL><P>This Service functions as a Global Cache. A global cache is a good place to store items that you may need to access often but don't necessarily need (or want) to fetch from the database everytime. A good example would be a look up table of States that you store in a database and use throughout your application. Since information about States doesn't change very often, you could store this information in the Global Cache and decrease the overhead of hitting the database everytime you need State information. The following properties are needed to configure this service:<br> <code><pre> services.GlobalCacheService.classname=org.apache.turbine.services.cache.TurbineGlobalCacheService services.GlobalCacheService.cache.initial.size=20 services.GlobalCacheService.cache.check.frequency=5000 </pre></code> <dl> <dt>classname</dt><dd>the classname of this service</dd> <dt>cache.initial.size/dt><dd>Initial size of hash table use to store cachedobjects. If this property is not present, the default value is 20</dd> <dt>cache.check.frequency</dt><dd>Cache check frequency in Millis (1000Millis = 1 second). If this property is not present, the default value is 5000</dd> </dl><P><DL><DT><B>Version: </B><DD>$Id: TurbineGlobalCacheService.java,v 1.4 2002/04/16 22:07:08 kschrader Exp $</DD><DT><B>Author: </B><DD><a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a>, <a href="mailto:jon@clearink.com">Jon S. Stevens</a>, <a href="mailto:john@zenplex.com">John Thorhauer</a></DD></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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 java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/apache/turbine/services/cache/TurbineGlobalCacheService.html#CACHE_CHECK_FREQUENCY">CACHE_CHECK_FREQUENCY</A></B></CODE><BR> The property for the Cache check frequency</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="../../../../../org/apache/turbine/services/cache/TurbineGlobalCacheService.html#DEFAULT_CACHE_CHECK_FREQUENCY">DEFAULT_CACHE_CHECK_FREQUENCY</A></B></CODE><BR> Cache check frequency in Millis (1000 Millis = 1 second).</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="../../../../../org/apache/turbine/services/cache/TurbineGlobalCacheService.html#DEFAULT_INITIAL_CACHE_SIZE">DEFAULT_INITIAL_CACHE_SIZE</A></B></CODE><BR> Initial size of hash table Value must be > 0.</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="../../../../../org/apache/turbine/services/cache/TurbineGlobalCacheService.html#INITIAL_CACHE_SIZE">INITIAL_CACHE_SIZE</A></B></CODE><BR> The property for the InitalCacheSize</TD></TR></TABLE> <A NAME="fields_inherited_from_class_org.apache.turbine.services.BaseService"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class org.apache.turbine.services.<A HREF="../../../../../org/apache/turbine/services/BaseService.html">BaseService</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../../org/apache/turbine/services/BaseService.html#configuration">configuration</A>, <A HREF="../../../../../org/apache/turbine/services/BaseService.html#name">name</A>, <A HREF="../../../../../org/apache/turbine/services/BaseService.html#properties">properties</A>, <A HREF="../../../../../org/apache/turbine/services/BaseService.html#serviceBroker">serviceBroker</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_org.apache.turbine.services.BaseInitable"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class org.apache.turbine.services.<A HREF="../../../../../org/apache/turbine/services/BaseInitable.html">BaseInitable</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../../org/apache/turbine/services/BaseInitable.html#initableBroker">initableBroker</A>, <A HREF="../../../../../org/apache/turbine/services/BaseInitable.html#isInitialized">isInitialized</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_org.apache.turbine.services.cache.GlobalCacheService"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface org.apache.turbine.services.cache.<A HREF="../../../../../org/apache/turbine/services/cache/GlobalCacheService.html">GlobalCacheService</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../../org/apache/turbine/services/cache/GlobalCacheService.html#SERVICE_NAME">SERVICE_NAME</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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="../../../../../org/apache/turbine/services/cache/TurbineGlobalCacheService.html#TurbineGlobalCacheService()">TurbineGlobalCacheService</A></B>()</CODE>⌨️ 快捷键说明
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