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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<h2 title="Class ELContext" class="title">Class ELContext</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<ul class="inheritance">
<li>javax.el.ELContext</li>
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<dd><code><a href="../../javax/el/StandardELContext.html" title="class in javax.el">StandardELContext</a></code></dd>
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<pre>public abstract class <span class="typeNameLabel">ELContext</span>
extends java.lang.Object</pre>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#ELContext--">ELContext</a></span>()</code></th>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#addEvaluationListener-javax.el.EvaluationListener-">addEvaluationListener</a></span>&#8203;(<a href="../../javax/el/EvaluationListener.html" title="class in javax.el">EvaluationListener</a>&nbsp;listener)</code></th>
<td class="colLast">
<div class="block">Register an EvaluationListener with this ELContext.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#convertToType-java.lang.Object-java.lang.Class-">convertToType</a></span>&#8203;(java.lang.Object&nbsp;obj,
             java.lang.Class&lt;?&gt;&nbsp;type)</code></th>
<td class="colLast">
<div class="block">Coerce the supplied object to the requested type.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#enterLambdaScope-java.util.Map-">enterLambdaScope</a></span>&#8203;(java.util.Map&lt;java.lang.String,java.lang.Object&gt;&nbsp;arguments)</code></th>
<td class="colLast">
<div class="block">Called when starting to evaluate a lambda expression so that the
 arguments are available to the EL context during evaluation.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#exitLambdaScope--">exitLambdaScope</a></span>()</code></th>
<td class="colLast">
<div class="block">Called after evaluating a lambda expression to signal that the arguments
 are no longer required.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getContext-java.lang.Class-">getContext</a></span>&#8203;(java.lang.Class&nbsp;key)</code></th>
<td class="colLast">
<div class="block">Obtain the context object for the given key.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>abstract <a href="../../javax/el/ELResolver.html" title="class in javax.el">ELResolver</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getELResolver--">getELResolver</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>java.util.List&lt;<a href="../../javax/el/EvaluationListener.html" title="class in javax.el">EvaluationListener</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getEvaluationListeners--">getEvaluationListeners</a></span>()</code></th>
<td class="colLast">
<div class="block">Obtain the list of registered EvaluationListeners.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>abstract <a href="../../javax/el/FunctionMapper.html" title="class in javax.el">FunctionMapper</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getFunctionMapper--">getFunctionMapper</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../javax/el/ImportHandler.html" title="class in javax.el">ImportHandler</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getImportHandler--">getImportHandler</a></span>()</code></th>
<td class="colLast">
<div class="block">Obtain the ImportHandler for this ELContext, creating one if necessary.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getLambdaArgument-java.lang.String-">getLambdaArgument</a></span>&#8203;(java.lang.String&nbsp;name)</code></th>
<td class="colLast">
<div class="block">Obtain the value of the lambda argument with the given name.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>java.util.Locale</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getLocale--">getLocale</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>abstract <a href="../../javax/el/VariableMapper.html" title="class in javax.el">VariableMapper</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#getVariableMapper--">getVariableMapper</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#isLambdaArgument-java.lang.String-">isLambdaArgument</a></span>&#8203;(java.lang.String&nbsp;name)</code></th>
<td class="colLast">
<div class="block">Determine if the specified name is recognised as the name of a lambda
 argument.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#isPropertyResolved--">isPropertyResolved</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#notifyAfterEvaluation-java.lang.String-">notifyAfterEvaluation</a></span>&#8203;(java.lang.String&nbsp;expression)</code></th>
<td class="colLast">
<div class="block">Notify interested listeners that an expression has been evaluated.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#notifyBeforeEvaluation-java.lang.String-">notifyBeforeEvaluation</a></span>&#8203;(java.lang.String&nbsp;expression)</code></th>
<td class="colLast">
<div class="block">Notify interested listeners that an expression will be evaluated.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#notifyPropertyResolved-java.lang.Object-java.lang.Object-">notifyPropertyResolved</a></span>&#8203;(java.lang.Object&nbsp;base,
                      java.lang.Object&nbsp;property)</code></th>
<td class="colLast">
<div class="block">Notify interested listeners that a property has been resolved.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#putContext-java.lang.Class-java.lang.Object-">putContext</a></span>&#8203;(java.lang.Class&nbsp;key,
          java.lang.Object&nbsp;contextObject)</code></th>
<td class="colLast">
<div class="block">Add an object to this EL context under the given key.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#setLocale-java.util.Locale-">setLocale</a></span>&#8203;(java.util.Locale&nbsp;locale)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#setPropertyResolved-boolean-">setPropertyResolved</a></span>&#8203;(boolean&nbsp;resolved)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../javax/el/ELContext.html#setPropertyResolved-java.lang.Object-java.lang.Object-">setPropertyResolved</a></span>&#8203;(java.lang.Object&nbsp;base,
                   java.lang.Object&nbsp;property)</code></th>
<td class="colLast">
<div class="block">Mark the given property as resolved and notfy any interested listeners.</div>
</td>
</tr>
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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>ELContext</h4>
<pre>public&nbsp;ELContext()</pre>
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<pre>public&nbsp;void&nbsp;setPropertyResolved&#8203;(boolean&nbsp;resolved)</pre>
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<pre>public&nbsp;void&nbsp;setPropertyResolved&#8203;(java.lang.Object&nbsp;base,
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<div class="block">Mark the given property as resolved and notfy any interested listeners.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>base</code> - The base object on which the property was found</dd>
<dd><code>property</code> - The property that was resolved</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;boolean&nbsp;isPropertyResolved()</pre>
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<h4>putContext</h4>
<pre>public&nbsp;void&nbsp;putContext&#8203;(java.lang.Class&nbsp;key,
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<div class="block">Add an object to this EL context under the given key.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - The key under which to store the object</dd>
<dd><code>contextObject</code> - The object to add</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - If the supplied key or context is <code>null</code></dd>
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<pre>public&nbsp;java.lang.Object&nbsp;getContext&#8203;(java.lang.Class&nbsp;key)</pre>
<div class="block">Obtain the context object for the given key.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - The key of the required context object</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The value of the context object associated with the given key</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - If the supplied key is <code>null</code></dd>
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<h4>getELResolver</h4>
<pre>public abstract&nbsp;<a href="../../javax/el/ELResolver.html" title="class in javax.el">ELResolver</a>&nbsp;getELResolver()</pre>
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<pre>public&nbsp;<a href="../../javax/el/ImportHandler.html" title="class in javax.el">ImportHandler</a>&nbsp;getImportHandler()</pre>
<div class="block">Obtain the ImportHandler for this ELContext, creating one if necessary.
 This method is not thread-safe.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the ImportHandler for this ELContext.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public abstract&nbsp;<a href="../../javax/el/FunctionMapper.html" title="class in javax.el">FunctionMapper</a>&nbsp;getFunctionMapper()</pre>
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<pre>public&nbsp;java.util.Locale&nbsp;getLocale()</pre>
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<pre>public&nbsp;void&nbsp;setLocale&#8203;(java.util.Locale&nbsp;locale)</pre>
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<pre>public abstract&nbsp;<a href="../../javax/el/VariableMapper.html" title="class in javax.el">VariableMapper</a>&nbsp;getVariableMapper()</pre>
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<pre>public&nbsp;void&nbsp;addEvaluationListener&#8203;(<a href="../../javax/el/EvaluationListener.html" title="class in javax.el">EvaluationListener</a>&nbsp;listener)</pre>
<div class="block">Register an EvaluationListener with this ELContext.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>listener</code> - The EvaluationListener to register</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;java.util.List&lt;<a href="../../javax/el/EvaluationListener.html" title="class in javax.el">EvaluationListener</a>&gt;&nbsp;getEvaluationListeners()</pre>
<div class="block">Obtain the list of registered EvaluationListeners.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A list of the EvaluationListener registered with this ELContext</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;void&nbsp;notifyBeforeEvaluation&#8203;(java.lang.String&nbsp;expression)</pre>
<div class="block">Notify interested listeners that an expression will be evaluated.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The expression that will be evaluated</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;void&nbsp;notifyAfterEvaluation&#8203;(java.lang.String&nbsp;expression)</pre>
<div class="block">Notify interested listeners that an expression has been evaluated.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The expression that was evaluated</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;void&nbsp;notifyPropertyResolved&#8203;(java.lang.Object&nbsp;base,
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<div class="block">Notify interested listeners that a property has been resolved.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>base</code> - The object on which the property was resolved</dd>
<dd><code>property</code> - The property that was resolved</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;boolean&nbsp;isLambdaArgument&#8203;(java.lang.String&nbsp;name)</pre>
<div class="block">Determine if the specified name is recognised as the name of a lambda
 argument.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - The name of the lambda argument</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the name is recognised as the name of a
         lambda argument, otherwise <code>false</code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;java.lang.Object&nbsp;getLambdaArgument&#8203;(java.lang.String&nbsp;name)</pre>
<div class="block">Obtain the value of the lambda argument with the given name.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - The name of the lambda argument</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The value of the specified argument</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;void&nbsp;enterLambdaScope&#8203;(java.util.Map&lt;java.lang.String,java.lang.Object&gt;&nbsp;arguments)</pre>
<div class="block">Called when starting to evaluate a lambda expression so that the
 arguments are available to the EL context during evaluation.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>arguments</code> - The arguments in scope for the current lambda
                  expression.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;void&nbsp;exitLambdaScope()</pre>
<div class="block">Called after evaluating a lambda expression to signal that the arguments
 are no longer required.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
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<pre>public&nbsp;java.lang.Object&nbsp;convertToType&#8203;(java.lang.Object&nbsp;obj,
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<div class="block">Coerce the supplied object to the requested type.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>obj</code> - The object to be coerced</dd>
<dd><code>type</code> - The type to which the object should be coerced</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An instance of the requested type.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../javax/el/ELException.html" title="class in javax.el">ELException</a></code> - If the conversion fails</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EL 3.0</dd>
</dl>
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