wyvern.lib.predicates
Class OrPredicate

java.lang.Object
  wyvern.lib.predicates.OrPredicate

All Implemented Interfaces:

Predicate, PrintablePredicate

public class OrPredicate

extends java.lang.Object

implements Predicate, PrintablePredicate

This predicate combines N other predicates with an OR operation. It returns true if any of the sub-predicates returns true.

Version:

1.0, Feb 09, 1998

Author:

Steve Yegge

Constructor Summary

OrPredicate(Predicate p1, Predicate p2)
Constructs a new OrPredicate

Method Summary

OrPredicate	add(Predicate p) Adds another predicate to the chain.
java.util.List	getPredicates() Returns both (or all) of the predicates being OR-ed together.
boolean	predicate(GameObject obj) Returns true if both sub-predicates return true for the object.
java.lang.String	print() Prints an English-like description of the predicate, e.g.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

OrPredicate

public OrPredicate(Predicate p1,
                   Predicate p2)

Constructs a new OrPredicate

Method Detail

add

public OrPredicate add(Predicate p)

Adds another predicate to the chain.

Parameters:

p - another Predicate to to check

Returns:

this object, for ease of chaining, e.g. myOrPredicate.add(p1).add(p2).add(p3)

getPredicates

public java.util.List getPredicates()

Returns both (or all) of the predicates being OR-ed together.

predicate

public boolean predicate(GameObject obj)

Returns true if both sub-predicates return true for the object.

Specified by:

predicate in interface Predicate

Parameters:

obj - the object to predicate upon

Returns:

true if it passes the test

toString

public java.lang.String toString()

print

public java.lang.String print()

Description copied from interface: PrintablePredicate

Prints an English-like description of the predicate, e.g. "NOT name like 'bob'", or "quantity < 100 AND item is cursed"

Specified by:

print in interface PrintablePredicate