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| <pre>public interface <span class="typeNameLabel">VariableResolver</span></pre> |
| <div class="block"><p>This class is used to customize the way the evaluator resolves |
| variable references. For example, instances of this class can |
| implement their own variable lookup mechanisms, or introduce the |
| notion of "implicit variables" which override any other variables. |
| An instance of this class should be passed to the evaluator's |
| constructor. |
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| <p>Whenever the evaluator is invoked, it is passed a "context" |
| Object from the application. For example, in a JSP environment, |
| the "context" is a PageContext. That context object is eventually |
| passed to this class, so that this class has a context in which to |
| resolve variables.</div> |
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| <td class="colFirst"><code>java.lang.Object</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/taglibs/standard/lang/jstl/VariableResolver.html#resolveVariable-java.lang.String-java.lang.Object-">resolveVariable</a></span>(java.lang.String pName, |
| java.lang.Object pContext)</code> |
| <div class="block">Resolves the specified variable within the given context.</div> |
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| <h4>resolveVariable</h4> |
| <pre>java.lang.Object resolveVariable(java.lang.String pName, |
| java.lang.Object pContext) |
| throws <a href="../../../../../../org/apache/taglibs/standard/lang/jstl/ELException.html" title="class in org.apache.taglibs.standard.lang.jstl">ELException</a></pre> |
| <div class="block">Resolves the specified variable within the given context. |
| Returns null if the variable is not found.</div> |
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