Package org.apache.commons.el

Class RelationalOperator

java.lang.Object

org.apache.commons.el.BinaryOperator

org.apache.commons.el.RelationalOperator

Direct Known Subclasses:

GreaterThanOperator, GreaterThanOrEqualsOperator, LessThanOperator, LessThanOrEqualsOperator

public abstract class RelationalOperator
extends BinaryOperator

This is the superclass for all relational operators (except == or !=)

Version:

$Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: luehe $

Author:

Nathan Abramson - Art Technology Group

Constructor Summary

Constructors

Constructor	Description
RelationalOperator()

Method Summary

Modifier and Type	Method	Description
abstract boolean	apply(double pLeft, double pRight)	Applies the operator to the given double values
abstract boolean	apply(long pLeft, long pRight)	Applies the operator to the given long values
java.lang.Object	apply(java.lang.Object pLeft, java.lang.Object pRight, Logger pLogger)	Applies the operator to the given value
abstract boolean	apply(java.lang.String pLeft, java.lang.String pRight)	Applies the operator to the given String values
abstract boolean	apply(java.math.BigDecimal pLeft, java.math.BigDecimal pRight)	Applies the operator to the given BigDecimal values, returning a BigDecimal
abstract boolean	apply(java.math.BigInteger pLeft, java.math.BigInteger pRight)	Applies the operator to the given BigDecimal values, returning a BigDecimal
protected boolean	isEqual(int val)	Test return value of BigInteger/BigDecimal A.compareTo(B).
protected boolean	isGreater(int val)	Test return value of BigInteger/BigDecimal A.compareTo(B).
protected boolean	isLess(int val)	Test return value of BigInteger/BigDecimal A.compareTo(B).

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

getOperatorSymbol, shouldCoerceToBoolean, shouldEvaluate

Methods inherited from class java.lang.Object

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

Constructor Detail

RelationalOperator

public RelationalOperator()

Method Detail

apply

public java.lang.Object apply(java.lang.Object pLeft,
                              java.lang.Object pRight,
                              Logger pLogger)
                       throws javax.servlet.jsp.el.ELException

Applies the operator to the given value

Specified by:

apply in class BinaryOperator

Throws:

javax.servlet.jsp.el.ELException

apply

public abstract boolean apply(double pLeft,
                              double pRight)

Applies the operator to the given double values

apply

public abstract boolean apply(long pLeft,
                              long pRight)

Applies the operator to the given long values

apply

public abstract boolean apply(java.lang.String pLeft,
                              java.lang.String pRight)

Applies the operator to the given String values

apply

public abstract boolean apply(java.math.BigDecimal pLeft,
                              java.math.BigDecimal pRight)

Applies the operator to the given BigDecimal values, returning a BigDecimal

apply

public abstract boolean apply(java.math.BigInteger pLeft,
                              java.math.BigInteger pRight)

Applies the operator to the given BigDecimal values, returning a BigDecimal

isLess

protected boolean isLess(int val)

Test return value of BigInteger/BigDecimal A.compareTo(B).

Parameters:

val - - result of BigInteger/BigDecimal compareTo() call

Returns:

- true if result is less than 0, otherwise false

isEqual

protected boolean isEqual(int val)

Test return value of BigInteger/BigDecimal A.compareTo(B).

Parameters:

val - - result of BigInteger/BigDecimal compareTo() call

Returns:

- true if result is equal to 0, otherwise false

isGreater

protected boolean isGreater(int val)

Test return value of BigInteger/BigDecimal A.compareTo(B).

Parameters:

val - - result of BigInteger/BigDecimal compareTo() call

Returns:

- true if result is greater than 0, otherwise false