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ResourceCacheImpl (Apache Velocity 1.7 API)
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org.apache.velocity.runtime.resource</FONT>
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Class ResourceCacheImpl</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.velocity.runtime.resource.ResourceCacheImpl</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>ResourceCacheImpl</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</A></DL>
</PRE>
<P>
Default implementation of the resource cache for the default
ResourceManager. The cache uses a <i>least recently used</i> (LRU)
algorithm, with a maximum size specified via the
<code>resource.manager.cache.size</code> property (idenfied by the
<A HREF="../../../../../org/apache/velocity/runtime/RuntimeConstants.html#RESOURCE_MANAGER_DEFAULTCACHE_SIZE"><CODE>RuntimeConstants.RESOURCE_MANAGER_DEFAULTCACHE_SIZE</CODE></A>
constant). This property get be set to <code>0</code> or less for
a greedy, unbounded cache (the behavior from pre-v1.5).
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>$Id: ResourceCacheImpl.java 898032 2010-01-11 19:51:03Z nbubna $</DD>
<DT><B>Author:</B></DT>
<DD><a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>, <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a></DD>
</DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Field Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#cache">cache</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cache storage, assumed to be thread-safe.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#rsvc">rsvc</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Runtime services, generally initialized by the
<code>initialize()</code> method.</TD>
</TR>
</TABLE>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<B>Constructor Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#ResourceCacheImpl()">ResourceCacheImpl</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#enumerateKeys()">enumerateKeys</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;returns an Iterator of Keys in the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#get(java.lang.Object)">get</A></B>(<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;key)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;retrieves a Resource from the
cache</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#initialize(org.apache.velocity.runtime.RuntimeServices)">initialize</A></B>(<A HREF="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</A>&nbsp;rs)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;initializes the ResourceCache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#put(java.lang.Object, org.apache.velocity.runtime.resource.Resource)">put</A></B>(<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;key,
<A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A>&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;stores a Resource in the cache</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#remove(java.lang.Object)">remove</A></B>(<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;key)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;removes a Resource from the cache</TD>
</TR>
</TABLE>
&nbsp;<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">
<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
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&nbsp;
<P>
<!-- ============ FIELD DETAIL =========== -->
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<B>Field Detail</B></FONT></TH>
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</TABLE>
<A NAME="cache"><!-- --></A><H3>
cache</H3>
<PRE>
protected <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A> <B>cache</B></PRE>
<DL>
<DD>Cache storage, assumed to be thread-safe.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="rsvc"><!-- --></A><H3>
rsvc</H3>
<PRE>
protected <A HREF="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</A> <B>rsvc</B></PRE>
<DL>
<DD>Runtime services, generally initialized by the
<code>initialize()</code> method.
<P>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="ResourceCacheImpl()"><!-- --></A><H3>
ResourceCacheImpl</H3>
<PRE>
public <B>ResourceCacheImpl</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Method Detail</B></FONT></TH>
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<A NAME="initialize(org.apache.velocity.runtime.RuntimeServices)"><!-- --></A><H3>
initialize</H3>
<PRE>
public void <B>initialize</B>(<A HREF="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</A>&nbsp;rs)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#initialize(org.apache.velocity.runtime.RuntimeServices)">ResourceCache</A></CODE></B></DD>
<DD>initializes the ResourceCache. Will be
called before any utilization
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#initialize(org.apache.velocity.runtime.RuntimeServices)">initialize</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rs</CODE> - RuntimeServices to use for logging, etc<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#initialize(org.apache.velocity.runtime.RuntimeServices)"><CODE>ResourceCache.initialize(org.apache.velocity.runtime.RuntimeServices)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="get(java.lang.Object)"><!-- --></A><H3>
get</H3>
<PRE>
public <A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A> <B>get</B>(<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;key)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#get(java.lang.Object)">ResourceCache</A></CODE></B></DD>
<DD>retrieves a Resource from the
cache
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#get(java.lang.Object)">get</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - key for Resource to be retrieved
<DT><B>Returns:</B><DD>Resource specified or null if not found<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#get(java.lang.Object)"><CODE>ResourceCache.get(java.lang.Object)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="put(java.lang.Object, org.apache.velocity.runtime.resource.Resource)"><!-- --></A><H3>
put</H3>
<PRE>
public <A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A> <B>put</B>(<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;key,
<A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A>&nbsp;value)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#put(java.lang.Object, org.apache.velocity.runtime.resource.Resource)">ResourceCache</A></CODE></B></DD>
<DD>stores a Resource in the cache
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#put(java.lang.Object, org.apache.velocity.runtime.resource.Resource)">put</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - key to associate with the Resource<DD><CODE>value</CODE> - Resource to be stored
<DT><B>Returns:</B><DD>existing Resource stored under this key, or null if none<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#put(java.lang.Object, org.apache.velocity.runtime.resource.Resource)"><CODE>ResourceCache.put(java.lang.Object, org.apache.velocity.runtime.resource.Resource)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="remove(java.lang.Object)"><!-- --></A><H3>
remove</H3>
<PRE>
public <A HREF="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</A> <B>remove</B>(<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;key)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#remove(java.lang.Object)">ResourceCache</A></CODE></B></DD>
<DD>removes a Resource from the cache
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#remove(java.lang.Object)">remove</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - resource to be removed
<DT><B>Returns:</B><DD>stored under key<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#remove(java.lang.Object)"><CODE>ResourceCache.remove(java.lang.Object)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="enumerateKeys()"><!-- --></A><H3>
enumerateKeys</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A> <B>enumerateKeys</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#enumerateKeys()">ResourceCache</A></CODE></B></DD>
<DD>returns an Iterator of Keys in the cache.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#enumerateKeys()">enumerateKeys</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>An Iterator of Keys in the cache.<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#enumerateKeys()"><CODE>ResourceCache.enumerateKeys()</CODE></A></DL>
</DD>
</DL>
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