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<div class="subTitle">freemarker.cache</div>
<h2 title="Class StrongCacheStorage" class="title">Class StrongCacheStorage</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li>freemarker.cache.StrongCacheStorage</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../freemarker/cache/CacheStorage.html" title="interface in freemarker.cache">CacheStorage</a>, <a href="../../freemarker/cache/CacheStorageWithGetSize.html" title="interface in freemarker.cache">CacheStorageWithGetSize</a>, <a href="../../freemarker/cache/ConcurrentCacheStorage.html" title="interface in freemarker.cache">ConcurrentCacheStorage</a></dd>
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<pre>public class <span class="typeNameLabel">StrongCacheStorage</span>
extends java.lang.Object
implements <a href="../../freemarker/cache/ConcurrentCacheStorage.html" title="interface in freemarker.cache">ConcurrentCacheStorage</a>, <a href="../../freemarker/cache/CacheStorageWithGetSize.html" title="interface in freemarker.cache">CacheStorageWithGetSize</a></pre>
<div class="block">Strong cache storage is a cache storage that simply wraps a <code>Map</code>. It holds a strong reference to all objects
it was passed, therefore prevents the cache from being purged during garbage collection. This class is always
thread-safe since 2.3.24, before that if we are running on Java 5 or later.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../freemarker/template/Configuration.html#setCacheStorage-freemarker.cache.CacheStorage-"><code>Configuration.setCacheStorage(CacheStorage)</code></a></dd>
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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="../../freemarker/cache/StrongCacheStorage.html#StrongCacheStorage--">StrongCacheStorage</a></span>()</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../freemarker/cache/StrongCacheStorage.html#clear--">clear</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../freemarker/cache/StrongCacheStorage.html#get-java.lang.Object-">get</a></span>(java.lang.Object&nbsp;key)</code>&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../freemarker/cache/StrongCacheStorage.html#getSize--">getSize</a></span>()</code>
<div class="block">Returns a close approximation of the number of cache entries.</div>
</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../freemarker/cache/StrongCacheStorage.html#isConcurrent--">isConcurrent</a></span>()</code>
<div class="block">Always returns <code>true</code>.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../freemarker/cache/StrongCacheStorage.html#put-java.lang.Object-java.lang.Object-">put</a></span>(java.lang.Object&nbsp;key,
java.lang.Object&nbsp;value)</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../freemarker/cache/StrongCacheStorage.html#remove-java.lang.Object-">remove</a></span>(java.lang.Object&nbsp;key)</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>StrongCacheStorage</h4>
<pre>public&nbsp;StrongCacheStorage()</pre>
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<h4>isConcurrent</h4>
<pre>public&nbsp;boolean&nbsp;isConcurrent()</pre>
<div class="block">Always returns <code>true</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../freemarker/cache/ConcurrentCacheStorage.html#isConcurrent--">isConcurrent</a></code>&nbsp;in interface&nbsp;<code><a href="../../freemarker/cache/ConcurrentCacheStorage.html" title="interface in freemarker.cache">ConcurrentCacheStorage</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if this instance of cache storage is concurrently
accessible from multiple threads without synchronization.</dd>
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<h4>get</h4>
<pre>public&nbsp;java.lang.Object&nbsp;get(java.lang.Object&nbsp;key)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../freemarker/cache/CacheStorage.html#get-java.lang.Object-">get</a></code>&nbsp;in interface&nbsp;<code><a href="../../freemarker/cache/CacheStorage.html" title="interface in freemarker.cache">CacheStorage</a></code></dd>
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<h4>put</h4>
<pre>public&nbsp;void&nbsp;put(java.lang.Object&nbsp;key,
java.lang.Object&nbsp;value)</pre>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../freemarker/cache/CacheStorage.html#put-java.lang.Object-java.lang.Object-">put</a></code>&nbsp;in interface&nbsp;<code><a href="../../freemarker/cache/CacheStorage.html" title="interface in freemarker.cache">CacheStorage</a></code></dd>
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<h4>remove</h4>
<pre>public&nbsp;void&nbsp;remove(java.lang.Object&nbsp;key)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../freemarker/cache/CacheStorage.html#remove-java.lang.Object-">remove</a></code>&nbsp;in interface&nbsp;<code><a href="../../freemarker/cache/CacheStorage.html" title="interface in freemarker.cache">CacheStorage</a></code></dd>
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<h4>getSize</h4>
<pre>public&nbsp;int&nbsp;getSize()</pre>
<div class="block">Returns a close approximation of the number of cache entries.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../freemarker/cache/CacheStorageWithGetSize.html#getSize--">getSize</a></code>&nbsp;in interface&nbsp;<code><a href="../../freemarker/cache/CacheStorageWithGetSize.html" title="interface in freemarker.cache">CacheStorageWithGetSize</a></code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.3.21</dd>
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<h4>clear</h4>
<pre>public&nbsp;void&nbsp;clear()</pre>
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<dd><code><a href="../../freemarker/cache/CacheStorage.html#clear--">clear</a></code>&nbsp;in interface&nbsp;<code><a href="../../freemarker/cache/CacheStorage.html" title="interface in freemarker.cache">CacheStorage</a></code></dd>
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