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RelationalOperator (jbpm-3.1.3) - JBoss JBPM 3.1.3 API 英文版文档

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org.jbpm.jpdl.el.impl
Class RelationalOperator

java.lang.Object
  org.jbpm.jpdl.el.impl.BinaryOperator
      org.jbpm.jpdl.el.impl.RelationalOperator

Direct Known Subclasses:

GreaterThanOperator, GreaterThanOrEqualsOperator, LessThanOperator, LessThanOrEqualsOperator

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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: tombaeyens $

Author:

Nathan Abramson - Art Technology Group

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Constructor Summary
RelationalOperator()

 

Method Summary
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
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
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.jbpm.jpdl.el.impl.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 ELException

Applies the operator to the given value

Specified by:

apply in class BinaryOperator

Throws:

ELException

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apply

public abstract boolean apply(double pLeft,
                              double pRight)

Applies the operator to the given double values

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apply

public abstract boolean apply(long pLeft,
                              long pRight)

Applies the operator to the given long values

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apply

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

Applies the operator to the given String values

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apply

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

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

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apply

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

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

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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

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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

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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

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Version : jbpm-3.1.3