wyvern.lib.predicates
Class ComparisonPredicate

java.lang.Object
  wyvern.lib.predicates.ComparisonPredicate

All Implemented Interfaces:

Predicate, PrintablePredicate

Direct Known Subclasses:

EqualPredicate, GreaterOrEqualPredicate, GreaterThanPredicate, LessOrEqualPredicate, LessThanPredicate, NotEqualPredicate

public abstract class ComparisonPredicate

extends java.lang.Object

implements Predicate, PrintablePredicate

Superclass of all the predicates that compare int properties to some int value.

Version:

1.0, Dec 27, 2003

Author:

Steve Yegge

Field Summary

protected java.lang.String	name_
protected int	value_

Constructor Summary

ComparisonPredicate(java.lang.String prop, int value)
Constructs a new ComparisonPredicate for the specified property and value.

Method Summary

java.lang.String	getProp()
int	getValue()
static ComparisonPredicate	make(java.lang.String prop, java.lang.String op, int value) Factory method that takes an operator, such as "!

Methods inherited from class java.lang.Object

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

Methods inherited from interface wyvern.lib.Predicate

predicate

Methods inherited from interface wyvern.lib.predicates.PrintablePredicate

print

Field Detail

name_

protected java.lang.String name_

value_

protected int value_

Constructor Detail

ComparisonPredicate

public ComparisonPredicate(java.lang.String prop,
                           int value)

Constructs a new ComparisonPredicate for the specified property and value.

Method Detail

getProp

public java.lang.String getProp()

getValue

public int getValue()

make

public static ComparisonPredicate make(java.lang.String prop,
                                       java.lang.String op,
                                       int value)

Factory method that takes an operator, such as "!=", a property name, and a value to compare the property to, and returns a suitable ComparisonPredicate.

Parameters:

op - the comparison operator

prop - the name of the int property

value - the value to compare the property to