org.xshare.base.predicate
Class UnaryXorPredicate

java.lang.Object
  |
  +--org.xshare.base.predicate.UnaryXorPredicate

All Implemented Interfaces:

UnaryPredicate

public final class UnaryXorPredicate

extends java.lang.Object

implements UnaryPredicate

A binary predicate represents a 'xor' like conjunction of two UnaryPredicates.

Since:

0.20

Version:

$Revision: 1.1 $

Author:

Oliver Fischer

See Also:

UnaryPredicate

Field Summary

Fields inherited from interface org.xshare.base.predicate.UnaryPredicate

ALWAYS_FALSE, ALWAYS_TRUE

Constructor Summary

UnaryXorPredicate(UnaryPredicate pFirstPredicate, UnaryPredicate pSecondPredicate)
Constructs a 'xor' predicate for two UnaryPredicates.

Method Summary

boolean

exec(java.lang.Object pVictim) Passes the argument object two both predicates and returns true if at least one predicate is satisfied by the argument.

Methods inherited from class java.lang.Object

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

Constructor Detail

UnaryXorPredicate

public UnaryXorPredicate(UnaryPredicate pFirstPredicate,
                         UnaryPredicate pSecondPredicate)

Constructs a 'xor' predicate for two UnaryPredicates.

Parameters:

pFirstPredicate - a UnaryPredicate object representing the first predicate connected with this instance.

pSecondPredicate - a UnaryPredicate object representing the second predicate connected with this instance.

Throws:

java.lang.NullPointerException - if one of both predicates is null.

Method Detail

exec

public boolean exec(java.lang.Object pVictim)

Passes the argument object two both predicates and returns true if at least one predicate is satisfied by the argument.

Specified by:

exec in interface UnaryPredicate

Parameters:

pVictim - an Object object representing the argument passed to both predicates.

Returns:

a boolean value which is true if at least one predicate is satisfied by the argument. Otherwise false is expected as return value.

Throws:

java.lang.ClassCastException - if the implementing class can not operate on the given object.