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| <li>Summary: </li> |
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| <div class="subTitle">org.apache.taglibs.standard.lang.jstl</div> |
| <h2 title="Class Evaluator" class="title">Class Evaluator</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.taglibs.standard.lang.jstl.Evaluator</li> |
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| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../org/apache/taglibs/standard/lang/support/ExpressionEvaluator.html" title="interface in org.apache.taglibs.standard.lang.support">ExpressionEvaluator</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">Evaluator</span> |
| extends java.lang.Object |
| implements <a href="../../../../../../org/apache/taglibs/standard/lang/support/ExpressionEvaluator.html" title="interface in org.apache.taglibs.standard.lang.support">ExpressionEvaluator</a></pre> |
| <div class="block"><p>This is the expression evaluator "adapter" that customizes it |
| for use with the JSP Standard Tag Library. It uses a |
| VariableResolver implementation that looks up variables from the |
| PageContext and also implements its implicit objects. It also |
| wraps ELExceptions in JspExceptions that describe the attribute |
| name and value causing the error.</div> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/taglibs/standard/lang/jstl/Evaluator.html#Evaluator--">Evaluator</a></span>()</code> </td> |
| </tr> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>java.lang.Object</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/taglibs/standard/lang/jstl/Evaluator.html#evaluate-java.lang.String-java.lang.String-java.lang.Class-javax.servlet.jsp.tagext.Tag-javax.servlet.jsp.PageContext-">evaluate</a></span>(java.lang.String pAttributeName, |
| java.lang.String pAttributeValue, |
| java.lang.Class pExpectedType, |
| <a href="../../../../../../javax/servlet/jsp/tagext/Tag.html" title="interface in javax.servlet.jsp.tagext">Tag</a> pTag, |
| <a href="../../../../../../javax/servlet/jsp/PageContext.html" title="class in javax.servlet.jsp">PageContext</a> pPageContext)</code> |
| <div class="block">Conduit to old-style call for convenience.</div> |
| </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="../../../../../../org/apache/taglibs/standard/lang/jstl/Evaluator.html#evaluate-java.lang.String-java.lang.String-java.lang.Class-javax.servlet.jsp.tagext.Tag-javax.servlet.jsp.PageContext-java.util.Map-java.lang.String-">evaluate</a></span>(java.lang.String pAttributeName, |
| java.lang.String pAttributeValue, |
| java.lang.Class pExpectedType, |
| <a href="../../../../../../javax/servlet/jsp/tagext/Tag.html" title="interface in javax.servlet.jsp.tagext">Tag</a> pTag, |
| <a href="../../../../../../javax/servlet/jsp/PageContext.html" title="class in javax.servlet.jsp">PageContext</a> pPageContext, |
| java.util.Map functions, |
| java.lang.String defaultPrefix)</code> |
| <div class="block">Evaluates the expression at request time</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/taglibs/standard/lang/jstl/Evaluator.html#parseAndRender-java.lang.String-">parseAndRender</a></span>(java.lang.String pAttributeValue)</code> |
| <div class="block">Parses the given attribute value, then converts it back to a |
| String in its canonical form.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/taglibs/standard/lang/jstl/Evaluator.html#validate-java.lang.String-java.lang.String-">validate</a></span>(java.lang.String pAttributeName, |
| java.lang.String pAttributeValue)</code> |
| <div class="block">Translation time validation of an attribute value.</div> |
| </td> |
| </tr> |
| </table> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
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| <h3>Constructor Detail</h3> |
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| <h4>Evaluator</h4> |
| <pre>public Evaluator()</pre> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>validate</h4> |
| <pre>public java.lang.String validate(java.lang.String pAttributeName, |
| java.lang.String pAttributeValue)</pre> |
| <div class="block">Translation time validation of an attribute value. This method |
| will return a null String if the attribute value is valid; |
| otherwise an error message.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/taglibs/standard/lang/support/ExpressionEvaluator.html#validate-java.lang.String-java.lang.String-">validate</a></code> in interface <code><a href="../../../../../../org/apache/taglibs/standard/lang/support/ExpressionEvaluator.html" title="interface in org.apache.taglibs.standard.lang.support">ExpressionEvaluator</a></code></dd> |
| </dl> |
| </li> |
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| <a name="evaluate-java.lang.String-java.lang.String-java.lang.Class-javax.servlet.jsp.tagext.Tag-javax.servlet.jsp.PageContext-java.util.Map-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>evaluate</h4> |
| <pre>public java.lang.Object evaluate(java.lang.String pAttributeName, |
| java.lang.String pAttributeValue, |
| java.lang.Class pExpectedType, |
| <a href="../../../../../../javax/servlet/jsp/tagext/Tag.html" title="interface in javax.servlet.jsp.tagext">Tag</a> pTag, |
| <a href="../../../../../../javax/servlet/jsp/PageContext.html" title="class in javax.servlet.jsp">PageContext</a> pPageContext, |
| java.util.Map functions, |
| java.lang.String defaultPrefix) |
| throws <a href="../../../../../../javax/servlet/jsp/JspException.html" title="class in javax.servlet.jsp">JspException</a></pre> |
| <div class="block">Evaluates the expression at request time</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../javax/servlet/jsp/JspException.html" title="class in javax.servlet.jsp">JspException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="evaluate-java.lang.String-java.lang.String-java.lang.Class-javax.servlet.jsp.tagext.Tag-javax.servlet.jsp.PageContext-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>evaluate</h4> |
| <pre>public java.lang.Object evaluate(java.lang.String pAttributeName, |
| java.lang.String pAttributeValue, |
| java.lang.Class pExpectedType, |
| <a href="../../../../../../javax/servlet/jsp/tagext/Tag.html" title="interface in javax.servlet.jsp.tagext">Tag</a> pTag, |
| <a href="../../../../../../javax/servlet/jsp/PageContext.html" title="class in javax.servlet.jsp">PageContext</a> pPageContext) |
| throws <a href="../../../../../../javax/servlet/jsp/JspException.html" title="class in javax.servlet.jsp">JspException</a></pre> |
| <div class="block">Conduit to old-style call for convenience.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/taglibs/standard/lang/support/ExpressionEvaluator.html#evaluate-java.lang.String-java.lang.String-java.lang.Class-javax.servlet.jsp.tagext.Tag-javax.servlet.jsp.PageContext-">evaluate</a></code> in interface <code><a href="../../../../../../org/apache/taglibs/standard/lang/support/ExpressionEvaluator.html" title="interface in org.apache.taglibs.standard.lang.support">ExpressionEvaluator</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../javax/servlet/jsp/JspException.html" title="class in javax.servlet.jsp">JspException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="parseAndRender-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>parseAndRender</h4> |
| <pre>public static java.lang.String parseAndRender(java.lang.String pAttributeValue) |
| throws <a href="../../../../../../javax/servlet/jsp/JspException.html" title="class in javax.servlet.jsp">JspException</a></pre> |
| <div class="block">Parses the given attribute value, then converts it back to a |
| String in its canonical form.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../javax/servlet/jsp/JspException.html" title="class in javax.servlet.jsp">JspException</a></code></dd> |
| </dl> |
| </li> |
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