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

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

All Implemented Interfaces:

Expression<E>

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

Expression that represents and returns a constant value.

Created: 18.06.2007 17:38:58

Author:

Volker Bergmann

Constructor Summary

ConstantExpression(E value)

Method Summary

E	evaluate(Context context)
E	getValue()
boolean	isConstant()
void	setValue(E value)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantExpression

public ConstantExpression(E value)

Method Detail

getValue

public E getValue()

setValue

public void setValue(E value)

evaluate

public E evaluate(Context context)

Specified by:

evaluate in interface Expression<E>

isConstant

public boolean isConstant()

Specified by:

isConstant in interface Expression<E>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object