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<h2 title="Interface FilterRegistration" class="title">Interface FilterRegistration</h2>
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<pre>public interface <span class="typeNameLabel">FilterRegistration</span>
extends <a href="../../jakarta/servlet/Registration.html" title="interface in jakarta.servlet">Registration</a></pre>
<div class="block">Interface through which a <a href="../../jakarta/servlet/Filter.html" title="interface in jakarta.servlet"><code>Filter</code></a> may be further configured.</div>
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<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>Servlet 3.0</dd>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Interface and Description</th>
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<td class="colFirst"><code>static interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/servlet/FilterRegistration.Dynamic.html" title="interface in jakarta.servlet">FilterRegistration.Dynamic</a></span></code>
<div class="block">Interface through which a <a href="../../jakarta/servlet/Filter.html" title="interface in jakarta.servlet"><code>Filter</code></a> registered via one of the <tt>addFilter</tt> methods on
<a href="../../jakarta/servlet/ServletContext.html" title="interface in jakarta.servlet"><code>ServletContext</code></a> may be further configured.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/servlet/FilterRegistration.html#addMappingForServletNames-java.util.EnumSet-boolean-java.lang.String...-">addMappingForServletNames</a></span>(java.util.EnumSet&lt;<a href="../../jakarta/servlet/DispatcherType.html" title="enum in jakarta.servlet">DispatcherType</a>&gt;&nbsp;dispatcherTypes,
boolean&nbsp;isMatchAfter,
java.lang.String...&nbsp;servletNames)</code>
<div class="block">Adds a filter mapping with the given servlet names and dispatcher types for the Filter represented by this
FilterRegistration.</div>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/servlet/FilterRegistration.html#addMappingForUrlPatterns-java.util.EnumSet-boolean-java.lang.String...-">addMappingForUrlPatterns</a></span>(java.util.EnumSet&lt;<a href="../../jakarta/servlet/DispatcherType.html" title="enum in jakarta.servlet">DispatcherType</a>&gt;&nbsp;dispatcherTypes,
boolean&nbsp;isMatchAfter,
java.lang.String...&nbsp;urlPatterns)</code>
<div class="block">Adds a filter mapping with the given url patterns and dispatcher types for the Filter represented by this
FilterRegistration.</div>
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<td class="colFirst"><code>java.util.Collection&lt;java.lang.String&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/servlet/FilterRegistration.html#getServletNameMappings--">getServletNameMappings</a></span>()</code>
<div class="block">Gets the currently available servlet name mappings of the Filter represented by this <code>FilterRegistration</code>.</div>
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<td class="colFirst"><code>java.util.Collection&lt;java.lang.String&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../jakarta/servlet/FilterRegistration.html#getUrlPatternMappings--">getUrlPatternMappings</a></span>()</code>
<div class="block">Gets the currently available URL pattern mappings of the Filter represented by this <code>FilterRegistration</code>.</div>
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<h3>Methods inherited from interface&nbsp;jakarta.servlet.<a href="../../jakarta/servlet/Registration.html" title="interface in jakarta.servlet">Registration</a></h3>
<code><a href="../../jakarta/servlet/Registration.html#getClassName--">getClassName</a>, <a href="../../jakarta/servlet/Registration.html#getInitParameter-java.lang.String-">getInitParameter</a>, <a href="../../jakarta/servlet/Registration.html#getInitParameters--">getInitParameters</a>, <a href="../../jakarta/servlet/Registration.html#getName--">getName</a>, <a href="../../jakarta/servlet/Registration.html#setInitParameter-java.lang.String-java.lang.String-">setInitParameter</a>, <a href="../../jakarta/servlet/Registration.html#setInitParameters-java.util.Map-">setInitParameters</a></code></li>
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<h4>addMappingForServletNames</h4>
<pre>void&nbsp;addMappingForServletNames(java.util.EnumSet&lt;<a href="../../jakarta/servlet/DispatcherType.html" title="enum in jakarta.servlet">DispatcherType</a>&gt;&nbsp;dispatcherTypes,
boolean&nbsp;isMatchAfter,
java.lang.String...&nbsp;servletNames)</pre>
<div class="block">Adds a filter mapping with the given servlet names and dispatcher types for the Filter represented by this
FilterRegistration.
<p>
Filter mappings are matched in the order in which they were added.
<p>
Depending on the value of the <tt>isMatchAfter</tt> parameter, the given filter mapping will be considered after or
before any <i>declared</i> filter mappings of the ServletContext from which this FilterRegistration was obtained.
<p>
If this method is called multiple times, each successive call adds to the effects of the former.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dispatcherTypes</code> - the dispatcher types of the filter mapping, or null if the default
<tt>DispatcherType.REQUEST</tt> is to be used</dd>
<dd><code>isMatchAfter</code> - true if the given filter mapping should be matched after any declared filter mappings, and false
if it is supposed to be matched before any declared filter mappings of the ServletContext from which this
FilterRegistration was obtained</dd>
<dd><code>servletNames</code> - the servlet names of the filter mapping</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if <tt>servletNames</tt> is null or empty</dd>
<dd><code>java.lang.IllegalStateException</code> - if the ServletContext from which this FilterRegistration was obtained has already been
initialized</dd>
</dl>
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<h4>getServletNameMappings</h4>
<pre>java.util.Collection&lt;java.lang.String&gt;&nbsp;getServletNameMappings()</pre>
<div class="block">Gets the currently available servlet name mappings of the Filter represented by this <code>FilterRegistration</code>.
<p>
If permitted, any changes to the returned <code>Collection</code> must not affect this
<code>FilterRegistration</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a (possibly empty) <code>Collection</code> of the currently available servlet name mappings of the Filter
represented by this <code>FilterRegistration</code></dd>
</dl>
</li>
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<h4>addMappingForUrlPatterns</h4>
<pre>void&nbsp;addMappingForUrlPatterns(java.util.EnumSet&lt;<a href="../../jakarta/servlet/DispatcherType.html" title="enum in jakarta.servlet">DispatcherType</a>&gt;&nbsp;dispatcherTypes,
boolean&nbsp;isMatchAfter,
java.lang.String...&nbsp;urlPatterns)</pre>
<div class="block">Adds a filter mapping with the given url patterns and dispatcher types for the Filter represented by this
FilterRegistration.
<p>
Filter mappings are matched in the order in which they were added.
<p>
Depending on the value of the <tt>isMatchAfter</tt> parameter, the given filter mapping will be considered after or
before any <i>declared</i> filter mappings of the ServletContext from which this FilterRegistration was obtained.
<p>
If this method is called multiple times, each successive call adds to the effects of the former.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dispatcherTypes</code> - the dispatcher types of the filter mapping, or null if the default
<tt>DispatcherType.REQUEST</tt> is to be used</dd>
<dd><code>isMatchAfter</code> - true if the given filter mapping should be matched after any declared filter mappings, and false
if it is supposed to be matched before any declared filter mappings of the ServletContext from which this
FilterRegistration was obtained</dd>
<dd><code>urlPatterns</code> - the url patterns of the filter mapping</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if <tt>urlPatterns</tt> is null or empty</dd>
<dd><code>java.lang.IllegalStateException</code> - if the ServletContext from which this FilterRegistration was obtained has already been
initialized</dd>
</dl>
</li>
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<h4>getUrlPatternMappings</h4>
<pre>java.util.Collection&lt;java.lang.String&gt;&nbsp;getUrlPatternMappings()</pre>
<div class="block">Gets the currently available URL pattern mappings of the Filter represented by this <code>FilterRegistration</code>.
<p>
If permitted, any changes to the returned <code>Collection</code> must not affect this
<code>FilterRegistration</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a (possibly empty) <code>Collection</code> of the currently available URL pattern mappings of the Filter
represented by this <code>FilterRegistration</code></dd>
</dl>
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