biz.chitec.quarterback.util.logic
Class LessThanExpr

java.lang.Object
  biz.chitec.quarterback.util.logic.ArithmeticExpr
      biz.chitec.quarterback.util.logic.LessThanExpr

All Implemented Interfaces:

java.lang.Cloneable, LogicExpr

public class LessThanExpr

extends ArithmeticExpr

Logical expression checking whether a certain value in the universe is less than a given number

The value in the universe has to be of type Number, otherwise checks will always return false.

Version:

$Id: 2b364cf6234fcb1c00e9e8658f7cdcee2d5dec24 $

Author:

chitec/Dirk Hillbrecht 2001. Distributed under the terms of the GNU LGPL.

Nested Class Summary

Nested classes inherited from class biz.chitec.quarterback.util.logic.LogicExpr

LogicExpr.Converter, LogicExpr.UniverseGenerator

Field Summary

Fields inherited from class biz.chitec.quarterback.util.logic.ArithmeticExpr

key, numbercomparator, value

Constructor Summary

LessThanExpr(java.lang.Object kx, java.lang.Comparable vx)

LessThanExpr(java.lang.Object kx, double vx)

LessThanExpr(java.lang.Object kx, int vx)

Method Summary

protected boolean	doCompare(int universevalue)
protected boolean	doEvaluate(java.lang.Comparable universevalue)
protected java.lang.String	getSQLComparatorSign()

Methods inherited from class biz.chitec.quarterback.util.logic.ArithmeticExpr

clone, convertValues, equals, evaluate, getInternalVars, getResultSet, getValue, isReady, isTreeReady, sqlString

Methods inherited from class java.lang.Object

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

Constructor Detail

LessThanExpr

public LessThanExpr(java.lang.Object kx,
                    java.lang.Comparable vx)

LessThanExpr

public LessThanExpr(java.lang.Object kx,
                    int vx)

LessThanExpr

public LessThanExpr(java.lang.Object kx,
                    double vx)

Method Detail

doEvaluate

protected boolean doEvaluate(java.lang.Comparable universevalue)

Specified by:

doEvaluate in class ArithmeticExpr

doCompare

protected boolean doCompare(int universevalue)

Specified by:

doCompare in class ArithmeticExpr

getSQLComparatorSign

protected java.lang.String getSQLComparatorSign()

Specified by:

getSQLComparatorSign in class ArithmeticExpr