org.xshare.base.predicate
Class UnaryAndPredicate

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

All Implemented Interfaces:

UnaryPredicate

public final class UnaryAndPredicate

extends java.lang.Object

implements UnaryPredicate

A binary predicate represents a 'and' 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

UnaryAndPredicate(UnaryPredicate pFirstPredicate, UnaryPredicate pSecondPredicate)
Constructs a 'and' predicate for two UnaryPredicates.

Method Summary

boolean

exec(java.lang.Object pVictim) Passes the argument object two both predicates and returns true if the object satisfies both predicates.

Methods inherited from class java.lang.Object

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

Constructor Detail

UnaryAndPredicate

public UnaryAndPredicate(UnaryPredicate pFirstPredicate,
                         UnaryPredicate pSecondPredicate)

Constructs a 'and' 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 the object satisfies both predicates.

Specified by:

exec in interface UnaryPredicate

Parameters:

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

Returns:

a boolean value which is true if the argument satisfy both predicates. Otherwise false is expected as return value.

Throws:

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