org.databene.commons.expression
Class ExpressionProxy<E>

java.lang.Object
  org.databene.commons.expression.ExpressionProxy<E>

All Implemented Interfaces:

Expression<E>

Direct Known Subclasses:

CachedExpression

public class ExpressionProxy<E>
extends java.lang.Object
implements Expression<E>

Parent class for all expression classes that act as proxy of another class.

Created: 21.10.2009 14:43:08

Since:

0.5.0

Author:

Volker Bergmann

Field Summary

protected Expression<E>

source

Constructor Summary

ExpressionProxy(Expression<E> source)

Method Summary

E	evaluate(Context context)
boolean	isConstant()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

source

protected final Expression<E> source

Constructor Detail

ExpressionProxy

public ExpressionProxy(Expression<E> source)

Method Detail

evaluate

public E evaluate(Context context)

Specified by:

evaluate in interface Expression<E>

isConstant

public boolean isConstant()

Specified by:

isConstant in interface Expression<E>