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<div class="subTitle">org.apache.tools.ant.types.selectors.modifiedselector</div>
<h2 title="Class PropertiesfileCache" class="title">Class PropertiesfileCache</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
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<li>org.apache.tools.ant.types.selectors.modifiedselector.PropertiesfileCache</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></dd>
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<pre>public class <span class="strong">PropertiesfileCache</span>
extends java.lang.Object
implements <a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></pre>
<div class="block">Use java.util.Properties for storing the values.
The use of this Cache-implementation requires the use of the parameter
<param name="cache.cachefile" .../> for defining, where to store the
properties file.
The ModifiedSelector sets the <i>cachefile</i> to the default value
<i>cache.properties</i>.
Supported <param>s are:
<table>
<tr>
<th>name</th><th>values</th><th>description</th><th>required</th>
</tr>
<tr>
<td> cache.cachefile </td>
<td> <i>path to file</i> </td>
<td> the name of the properties file </td>
<td> yes </td>
</tr>
</table></div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>Ant 1.6</dd>
<dt><span class="strong">Version:</span></dt>
<dd>2003-09-13</dd></dl>
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<td class="colOne"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#PropertiesfileCache()">PropertiesfileCache</a></strong>()</code>
<div class="block">Bean-Constructor.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#PropertiesfileCache(java.io.File)">PropertiesfileCache</a></strong>(java.io.File cachefile)</code>
<div class="block">Constructor.</div>
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<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#delete()">delete</a></strong>()</code>
<div class="block">Deletes the cache and its underlying file.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#get(java.lang.Object)">get</a></strong>(java.lang.Object key)</code>
<div class="block">Returns a value for a given key from the cache.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.io.File</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#getCachefile()">getCachefile</a></strong>()</code>
<div class="block">Getter.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#isValid()">isValid</a></strong>()</code>
<div class="block">This cache is valid if the cachefile is set.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.util.Iterator</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#iterator()">iterator</a></strong>()</code>
<div class="block">Returns an iterator over the keys in the cache.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#load()">load</a></strong>()</code>
<div class="block">Load the cache from underlying properties file.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#put(java.lang.Object, java.lang.Object)">put</a></strong>(java.lang.Object key,
java.lang.Object value)</code>
<div class="block">Saves a key-value-pair in the cache.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#save()">save</a></strong>()</code>
<div class="block">Saves modification of the cache.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#setCachefile(java.io.File)">setCachefile</a></strong>(java.io.File file)</code>
<div class="block">Setter.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/PropertiesfileCache.html#toString()">toString</a></strong>()</code>
<div class="block">Override Object.toString().</div>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<h4>PropertiesfileCache</h4>
<pre>public PropertiesfileCache()</pre>
<div class="block">Bean-Constructor.</div>
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<h4>PropertiesfileCache</h4>
<pre>public PropertiesfileCache(java.io.File cachefile)</pre>
<div class="block">Constructor.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>cachefile</code> - set the cachefile</dd></dl>
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<h4>setCachefile</h4>
<pre>public void setCachefile(java.io.File file)</pre>
<div class="block">Setter.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>file</code> - new value</dd></dl>
</li>
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<a name="getCachefile()">
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<h4>getCachefile</h4>
<pre>public java.io.File getCachefile()</pre>
<div class="block">Getter.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the cachefile</dd></dl>
</li>
</ul>
<a name="isValid()">
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<h4>isValid</h4>
<pre>public boolean isValid()</pre>
<div class="block">This cache is valid if the cachefile is set.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html#isValid()">isValid</a></code> in interface <code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>true if all is ok false otherwise</dd></dl>
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<a name="load()">
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<h4>load</h4>
<pre>public void load()</pre>
<div class="block">Load the cache from underlying properties file.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html#load()">load</a></code> in interface <code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></code></dd>
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<a name="save()">
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<h4>save</h4>
<pre>public void save()</pre>
<div class="block">Saves modification of the cache.
Cache is only saved if there is one ore more entries.
Because entries can not be deleted by this API, this Cache
implementation checks the existence of entries before creating the file
for performance optimisation.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html#save()">save</a></code> in interface <code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></code></dd>
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<h4>delete</h4>
<pre>public void delete()</pre>
<div class="block">Deletes the cache and its underlying file.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html#delete()">delete</a></code> in interface <code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></code></dd>
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<h4>get</h4>
<pre>public java.lang.Object get(java.lang.Object key)</pre>
<div class="block">Returns a value for a given key from the cache.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html#get(java.lang.Object)">get</a></code> in interface <code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - the key</dd>
<dt><span class="strong">Returns:</span></dt><dd>the stored value</dd></dl>
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<h4>put</h4>
<pre>public void put(java.lang.Object key,
java.lang.Object value)</pre>
<div class="block">Saves a key-value-pair in the cache.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html#put(java.lang.Object, java.lang.Object)">put</a></code> in interface <code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - the key</dd><dd><code>value</code> - the value</dd></dl>
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<h4>iterator</h4>
<pre>public java.util.Iterator iterator()</pre>
<div class="block">Returns an iterator over the keys in the cache.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html#iterator()">iterator</a></code> in interface <code><a href="../../../../../../../org/apache/tools/ant/types/selectors/modifiedselector/Cache.html" title="interface in org.apache.tools.ant.types.selectors.modifiedselector">Cache</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>An iterator over the keys.</dd></dl>
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<h4>toString</h4>
<pre>public java.lang.String toString()</pre>
<div class="block">Override Object.toString().</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code>toString</code> in class <code>java.lang.Object</code></dd>
<dt><span class="strong">Returns:</span></dt><dd>information about this cache</dd></dl>
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