Package org.apache.commons.collections.functors

Class TransformerPredicate

java.lang.Object
org.apache.commons.collections.functors.TransformerPredicate
All Implemented Interfaces:
Serializable, Predicate
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: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $
Author:
Stephen Colebourne
See Also:

  • Constructor Details

    • TransformerPredicate

      public TransformerPredicate(Transformer transformer)
      Constructor that performs no validation. Use getInstance if you want that.
      Parameters:
      transformer - the transformer to decorate

  • Method Details

    • getInstance

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

    • evaluate

      public boolean evaluate(Object object)
      Evaluates the predicate returning the result of the decorated transformer.
      Specified by:
      evaluate in interface Predicate
      Parameters:
      object - the input object
      Returns:
      true if decorated transformer returns Boolean.TRUE
      Throws:
      FunctorException - if the transformer returns an invalid type

    • getTransformer

      public Transformer getTransformer()
      Gets the transformer.
      Returns:
      the transformer
      Since:
      Commons Collections 3.1