org.apache.commons.collections.functors
Class EqualPredicate<T>

java.lang.Object
  extended by org.apache.commons.collections.functors.EqualPredicate<T>
All Implemented Interfaces:
Serializable, Predicate<T>

public final class EqualPredicate<T>
extends Object
implements Predicate<T>, Serializable

Predicate implementation that returns true if the input is the same object as the one stored in this predicate by equals.

Since:
Commons Collections 3.0
Version:
$Revision: 1.1.1.1 $ $Date: 2005/05/23 04:34:17 $
Author:
Matt Hall, John Watkinson, Stephen Colebourne
See Also:
Serialized Form

Constructor Summary
EqualPredicate(T object)
          Constructor that performs no validation.
 
Method Summary
 boolean evaluate(T object)
          Evaluates the predicate returning true if the input equals the stored value.
static
<T> Predicate<T>
getInstance(T object)
          Factory to create the identity predicate.
 T getValue()
          Gets the value.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

EqualPredicate

public EqualPredicate(T object)
Constructor that performs no validation. Use getInstance if you want that.

Parameters:
object - the object to compare to
Method Detail

getInstance

public static <T> Predicate<T> getInstance(T object)
Factory to create the identity predicate.

Parameters:
object - the object to compare to
Returns:
the predicate
Throws:
IllegalArgumentException - if the predicate is null

evaluate

public boolean evaluate(T object)
Evaluates the predicate returning true if the input equals the stored value.

Specified by:
evaluate in interface Predicate<T>
Parameters:
object - the input object
Returns:
true if input object equals stored value

getValue

public T getValue()
Gets the value.

Returns:
the value
Since:
Commons Collections 3.1


Copyright © 2005-2005 Apache Software Foundation, Matt Hall, John Watkinson. All Rights Reserved.