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<title>Filter (JDOM v2.x)</title>
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<div class="subTitle">org.jdom2.filter</div>
<h2 title="Interface Filter" class="title">Interface Filter<T></h2>
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<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>T</code> - The Generic type of content returned by this Filter</dd></dl>
<dl>
<dt>All Superinterfaces:</dt>
<dd>java.io.Serializable</dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../org/jdom2/filter/AbstractFilter.html" title="class in org.jdom2.filter">AbstractFilter</a>, <a href="../../../org/jdom2/filter/AttributeFilter.html" title="class in org.jdom2.filter">AttributeFilter</a>, <a href="../../../org/jdom2/filter/ContentFilter.html" title="class in org.jdom2.filter">ContentFilter</a>, <a href="../../../org/jdom2/filter/ElementFilter.html" title="class in org.jdom2.filter">ElementFilter</a></dd>
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<pre>public interface <span class="strong">Filter<T></span>
extends java.io.Serializable</pre>
<div class="block">A generalized filter to restrict visibility or mutability on a list.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Jools Enticknap, Bradley S. Huffman, Rolf Lear</dd></dl>
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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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<td class="colFirst"><code><a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><<a href="../../../org/jdom2/filter/Filter.html" title="type parameter in Filter">T</a>></code></td>
<td class="colLast"><code><strong><a href="../../../org/jdom2/filter/Filter.html#and(org.jdom2.filter.Filter)">and</a></strong>(<a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><?> filter)</code>
<div class="block">Creates an ANDing filter.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.List<<a href="../../../org/jdom2/filter/Filter.html" title="type parameter in Filter">T</a>></code></td>
<td class="colLast"><code><strong><a href="../../../org/jdom2/filter/Filter.html#filter(java.util.List)">filter</a></strong>(java.util.List<?> content)</code>
<div class="block">Filter the input list keeping only the items that match the Filter.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../org/jdom2/filter/Filter.html" title="type parameter in Filter">T</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/jdom2/filter/Filter.html#filter(java.lang.Object)">filter</a></strong>(java.lang.Object content)</code>
<div class="block">Check to see if the content matches this Filter.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../org/jdom2/filter/Filter.html#matches(java.lang.Object)">matches</a></strong>(java.lang.Object content)</code>
<div class="block">Check to see if the object matches a predefined set of rules.</div>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><? extends java.lang.Object></code></td>
<td class="colLast"><code><strong><a href="../../../org/jdom2/filter/Filter.html#negate()">negate</a></strong>()</code>
<div class="block">Creates an 'inverse' filter</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code><a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><? extends java.lang.Object></code></td>
<td class="colLast"><code><strong><a href="../../../org/jdom2/filter/Filter.html#or(org.jdom2.filter.Filter)">or</a></strong>(<a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><?> filter)</code>
<div class="block">Creates an ORing filter</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code><R> <a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><R></code></td>
<td class="colLast"><code><strong><a href="../../../org/jdom2/filter/Filter.html#refine(org.jdom2.filter.Filter)">refine</a></strong>(<a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><R> filter)</code>
<div class="block">This is similar to the and(Filter) method except the generic type is
different.</div>
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<h4>filter</h4>
<pre>java.util.List<<a href="../../../org/jdom2/filter/Filter.html" title="type parameter in Filter">T</a>> filter(java.util.List<?> content)</pre>
<div class="block">Filter the input list keeping only the items that match the Filter.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>content</code> - The content to filter.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new read-only RandomAccess list of the filtered input content.</dd></dl>
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<h4>filter</h4>
<pre><a href="../../../org/jdom2/filter/Filter.html" title="type parameter in Filter">T</a> filter(java.lang.Object content)</pre>
<div class="block">Check to see if the content matches this Filter.
If it does, return the content cast as this filter's return type,
otherwise return null.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>content</code> - The content to test.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The content if it matches the filter, cast as this Filter's type.</dd></dl>
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<h4>matches</h4>
<pre>boolean matches(java.lang.Object content)</pre>
<div class="block">Check to see if the object matches a predefined set of rules.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>content</code> - The object to verify.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the object matches a predfined
set of rules.</dd></dl>
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<h4>negate</h4>
<pre><a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><? extends java.lang.Object> negate()</pre>
<div class="block">Creates an 'inverse' filter</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a Filter that returns all content except what this Filter
instance would.</dd></dl>
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<h4>or</h4>
<pre><a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><? extends java.lang.Object> or(<a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><?> filter)</pre>
<div class="block">Creates an ORing filter</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filter</code> - a second Filter to OR with.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new Filter instance that returns the 'union' of this filter and
the specified filter.</dd></dl>
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<h4>and</h4>
<pre><a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><<a href="../../../org/jdom2/filter/Filter.html" title="type parameter in Filter">T</a>> and(<a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><?> filter)</pre>
<div class="block">Creates an ANDing filter. The generic type of the result is the same as
this Filter.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filter</code> - a second Filter to AND with.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new Filter instance that returns the 'intersection' of this
filter and the specified filter.</dd></dl>
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<h4>refine</h4>
<pre><R> <a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><R> refine(<a href="../../../org/jdom2/filter/Filter.html" title="interface in org.jdom2.filter">Filter</a><R> filter)</pre>
<div class="block">This is similar to the and(Filter) method except the generic type is
different.</div>
<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>R</code> - The Generic type of the returned data is taken from the input
instance.</dd><dt><span class="strong">Parameters:</span></dt><dd><code>filter</code> - The filter to refine our results with.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A Filter that requires content to both match our instance and the
refining instance, but the generic type of the retuned data is based
on the refining instance, not this instance.</dd></dl>
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