org.apache.taglibs.standard.lang.jstl
Class Expression

java.lang.Object
  extended by org.apache.taglibs.standard.lang.jstl.Expression
Direct Known Subclasses:
BinaryOperatorExpression, ComplexValue, FunctionInvocation, Literal, NamedValue, UnaryOperatorExpression

public abstract class Expression
extends Object

The abstract class from which all expression types derive.

Version:
$Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: tcfujii $
Author:
Nathan Abramson - Art Technology Group, Shawn Bayern

Constructor Summary
Expression()
           
 
Method Summary
abstract  Object evaluate(Object pContext, VariableResolver pResolver, Map functions, String defaultPrefix, Logger pLogger)
          Evaluates the expression in the given context
abstract  String getExpressionString()
          Returns the expression in the expression language syntax
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Expression

public Expression()
Method Detail

getExpressionString

public abstract String getExpressionString()
Returns the expression in the expression language syntax


evaluate

public abstract Object evaluate(Object pContext,
                                VariableResolver pResolver,
                                Map functions,
                                String defaultPrefix,
                                Logger pLogger)
                         throws ELException
Evaluates the expression in the given context

Throws:
ELException


Copyright © 2007 Mort Bay Consulting. All Rights Reserved.