org.apache.commons.collections.functors
Class TransformerPredicate

java.lang.Object
  |
  +--org.apache.commons.collections.functors.TransformerPredicate
All Implemented Interfaces:
Predicate, Serializable

public final class TransformerPredicate
extends Object
implements Predicate, Serializable

Predicate implementation that returns the result of a transformer.

Since:
Commons Collections 3.0
Version:
$Revision: 1.3 $ $Date: 2004/01/14 21:43:09 $
Author:
Stephen Colebourne
See Also:
Serialized Form

Constructor Summary
TransformerPredicate(Transformer transformer)
          Constructor that performs no validation.
 
Method Summary
 boolean evaluate(Object object)
          Return the predicate result.
static Predicate getInstance(Transformer transformer)
          Factory to create the predicate.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TransformerPredicate

public TransformerPredicate(Transformer transformer)
Constructor that performs no validation. Use getInstance if you want that.
Method Detail

getInstance

public static Predicate getInstance(Transformer transformer)
Factory to create the predicate.
Returns:
the transformer
Throws:
IllegalArgumentException - if the transformer is null

evaluate

public boolean evaluate(Object object)
Return the predicate result.
Specified by:
evaluate in interface Predicate
Following copied from interface: org.apache.commons.collections.Predicate
Parameters:
object - the object to evaluate
Returns:
true or false
Throws:
ClassCastException - (runtime) if the input is the wrong class
IllegalArgumentException - (runtime) if the input is invalid
FunctorException - (runtime) if the predicate encounters a problem


Copyright © 2001-2004 Apache Software Foundation. All Rights Reserved.