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<div class="subTitle">org.apache.velocity.runtime.resource</div>
<h2 title="Class ResourceCacheImpl" class="title">Class ResourceCacheImpl</h2>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></dd>
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<pre>public class <span class="typeNameLabel">ResourceCacheImpl</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></pre>
<div class="block">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 (identified 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).</div>
<dl>
<dt><span class="simpleTagLabel">Version:</span></dt>
<dd>$Id$</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd><a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>, <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a></dd>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>,<a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#cache">cache</a></span></code>
<div class="block">Cache storage, assumed to be thread-safe.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected org.slf4j.Logger</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#log">log</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#rsvc">rsvc</a></span></code>
<div class="block">Runtime services, generally initialized by the
<code>initialize()</code> method.</div>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#ResourceCacheImpl--">ResourceCacheImpl</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#clear--">clear</a></span>()</code>
<div class="block">Removes all of the resources from this cache.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#enumerateKeys--">enumerateKeys</a></span>()</code>
<div class="block">returns an Iterator of Keys in the cache.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#get-java.lang.Object-">get</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</code>
<div class="block">retrieves a Resource from the
cache</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#initialize-org.apache.velocity.runtime.RuntimeServices-">initialize</a></span>(<a href="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</a>&nbsp;rs)</code>
<div class="block">initializes the ResourceCache.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#put-java.lang.Object-org.apache.velocity.runtime.resource.Resource-">put</a></span>(<a href="https://docs.oracle.com/javase/8/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>
<div class="block">stores a Resource in the cache</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCacheImpl.html#remove-java.lang.Object-">remove</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</code>
<div class="block">removes a Resource from the cache</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>cache</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>,<a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a>&gt; cache</pre>
<div class="block">Cache storage, assumed to be thread-safe.</div>
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<h4>rsvc</h4>
<pre>protected&nbsp;<a href="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</a> rsvc</pre>
<div class="block">Runtime services, generally initialized by the
<code>initialize()</code> method.</div>
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<h4>log</h4>
<pre>protected&nbsp;org.slf4j.Logger log</pre>
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<pre>public&nbsp;ResourceCacheImpl()</pre>
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<h4>initialize</h4>
<pre>public&nbsp;void&nbsp;initialize(<a href="../../../../../org/apache/velocity/runtime/RuntimeServices.html" title="interface in org.apache.velocity.runtime">RuntimeServices</a>&nbsp;rs)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#initialize-org.apache.velocity.runtime.RuntimeServices-">ResourceCache</a></code></span></div>
<div class="block">initializes the ResourceCache. Will be
called before any utilization</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#initialize-org.apache.velocity.runtime.RuntimeServices-">initialize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rs</code> - RuntimeServices to use for logging, etc</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<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></dd>
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<h4>get</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a>&nbsp;get(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#get-java.lang.Object-">ResourceCache</a></code></span></div>
<div class="block">retrieves a Resource from the
cache</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#get-java.lang.Object-">get</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - key for Resource to be retrieved</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Resource specified or null if not found</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#get-java.lang.Object-"><code>ResourceCache.get(java.lang.Object)</code></a></dd>
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<h4>put</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a>&nbsp;put(<a href="https://docs.oracle.com/javase/8/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>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#put-java.lang.Object-org.apache.velocity.runtime.resource.Resource-">ResourceCache</a></code></span></div>
<div class="block">stores a Resource in the cache</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#put-java.lang.Object-org.apache.velocity.runtime.resource.Resource-">put</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - key to associate with the Resource</dd>
<dd><code>value</code> - Resource to be stored</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>existing Resource stored under this key, or null if none</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<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></dd>
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<h4>remove</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/velocity/runtime/resource/Resource.html" title="class in org.apache.velocity.runtime.resource">Resource</a>&nbsp;remove(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#remove-java.lang.Object-">ResourceCache</a></code></span></div>
<div class="block">removes a Resource from the cache</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#remove-java.lang.Object-">remove</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - resource to be removed</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>stored under key</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#remove-java.lang.Object-"><code>ResourceCache.remove(java.lang.Object)</code></a></dd>
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<h4>clear</h4>
<pre>public&nbsp;void&nbsp;clear()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#clear--">ResourceCache</a></code></span></div>
<div class="block">Removes all of the resources from this cache.
The cache will be empty after this call returns.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#clear--">clear</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.0</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#clear--"><code>ResourceCache.clear()</code></a></dd>
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<h4>enumerateKeys</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;enumerateKeys()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#enumerateKeys--">ResourceCache</a></code></span></div>
<div class="block">returns an Iterator of Keys in the cache.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#enumerateKeys--">enumerateKeys</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html" title="interface in org.apache.velocity.runtime.resource">ResourceCache</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An Iterator of Keys in the cache.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/velocity/runtime/resource/ResourceCache.html#enumerateKeys--"><code>ResourceCache.enumerateKeys()</code></a></dd>
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