org.apache.commons.el
Class BinaryOperator
java.lang.Object
org.apache.commons.el.BinaryOperator
public abstract class BinaryOperator
extends java.lang.Object
This is the superclass for all binary operators
$Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: luehe $- Nathan Abramson - Art Technology Group
abstract Object | apply(Object pLeft, Object pRight, Logger pLogger) -
Applies the operator to the given pair of values
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abstract String | getOperatorSymbol() -
Returns the symbol representing the operator
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boolean | shouldCoerceToBoolean() -
Returns true if the operator expects its arguments to be coerced
to Booleans.
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boolean | shouldEvaluate(Object pLeft) -
Returns true if evaluation is necessary given the specified Left
value.
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BinaryOperator
public BinaryOperator()
Constructor
apply
public abstract Object apply(Object pLeft,
Object pRight,
Logger pLogger)
throws ELException
Applies the operator to the given pair of values
getOperatorSymbol
public abstract String getOperatorSymbol()
Returns the symbol representing the operator
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.
shouldEvaluate
public boolean shouldEvaluate(Object pLeft)
Returns true if evaluation is necessary given the specified Left
value. The And/OrOperators make use of this
Copyright (c) 2001-2002 - Apache Software Foundation