ExpressionImpl (Apache Tomcat 6.0.53 API Documentation)

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org.apache.jasper.el
Class ExpressionImpl

java.lang.Object
  javax.servlet.jsp.el.Expression
      org.apache.jasper.el.ExpressionImpl

public final class ExpressionImpl
extends javax.servlet.jsp.el.Expression
extends javax.servlet.jsp.el.Expression

Constructor Summary
`ExpressionImpl(javax.el.ValueExpression ve)`

Method Summary
`java.lang.Object`	`evaluate(javax.servlet.jsp.el.VariableResolver vResolver)` Evaluates an expression that was previously prepared.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

ExpressionImpl

public ExpressionImpl(javax.el.ValueExpression ve)

Method Detail

evaluate

public java.lang.Object evaluate(javax.servlet.jsp.el.VariableResolver vResolver)
                          throws javax.servlet.jsp.el.ELException

Description copied from class: javax.servlet.jsp.el.Expression

Evaluates an expression that was previously prepared. In some implementations preparing an expression involves full syntactic validation, but others may not do so. Evaluating the expression may raise an ELParseException as well as other ELExceptions due to run-time evaluation.

Specified by:: evaluate in class javax.servlet.jsp.el.Expression

Parameters:: vResolver - A VariableResolver instance that can be used at runtime to resolve the name of implicit objects into Objects.
Returns:: The result of the expression evaluation.
Throws:: javax.servlet.jsp.el.ELException - Thrown if the expression evaluation failed.