org.apache.commons.el

Class AndOperator


public class AndOperator
extends BinaryOperator

The implementation of the and operator
Version:
$Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: luehe $
Author:
Nathan Abramson - Art Technology Group

Field Summary

static AndOperator
SINGLETON

Constructor Summary

AndOperator()
Constructor

Method Summary

Object
apply(Object pLeft, Object pRight, Logger pLogger)
Applies the operator to the given value
String
getOperatorSymbol()
Returns the symbol representing the operator
boolean
shouldCoerceToBoolean()
Returns true if the operator expects its arguments to be coerced to Booleans.
boolean
shouldEvaluate(Object pLeft)
Returns true if evaluation is necessary given the specified Left value.

Methods inherited from class org.apache.commons.el.BinaryOperator

apply, getOperatorSymbol, shouldCoerceToBoolean, shouldEvaluate

Field Details

SINGLETON

public static final AndOperator SINGLETON

Constructor Details

AndOperator

public AndOperator()
Constructor

Method Details

apply

public Object apply(Object pLeft,
                    Object pRight,
                    Logger pLogger)
            throws ELException
Applies the operator to the given value
Overrides:
apply in interface BinaryOperator

getOperatorSymbol

public String getOperatorSymbol()
Returns the symbol representing the operator
Overrides:
getOperatorSymbol in interface BinaryOperator

shouldCoerceToBoolean

public boolean shouldCoerceToBoolean()
Returns true if the operator expects its arguments to be coerced to Booleans. The And/Or operators set this to true.
Overrides:
shouldCoerceToBoolean in interface BinaryOperator

shouldEvaluate

public boolean shouldEvaluate(Object pLeft)
Returns true if evaluation is necessary given the specified Left value. The And/OrOperators make use of this
Overrides:
shouldEvaluate in interface BinaryOperator

Copyright (c) 2001-2002 - Apache Software Foundation