Package org.apache.commons.collections.functors

Class InstanceofPredicate

java.lang.Object
org.apache.commons.collections.functors.InstanceofPredicate
All Implemented Interfaces:
Serializable, Predicate
public final class InstanceofPredicate extends Object implements Predicate, Serializable
Predicate implementation that returns true if the input is an instanceof the type stored in this predicate.
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

    • InstanceofPredicate

      public InstanceofPredicate(Class type)
      Constructor that performs no validation. Use getInstance if you want that.
      Parameters:
      type - the type to check for

  • Method Details

    • getInstance

      public static Predicate getInstance(Class type)
      Factory to create the identity predicate.
      Parameters:
      type - the type to check for, may not be null
      Returns:
      the predicate
      Throws:
      IllegalArgumentException - if the class is null

    • evaluate

      public boolean evaluate(Object object)
      Evaluates the predicate returning true if the input object is of the correct type.
      Specified by:
      evaluate in interface Predicate
      Parameters:
      object - the input object
      Returns:
      true if input is of stored type

    • getType

      public Class getType()
      Gets the type to compare to.
      Returns:
      the type
      Since:
      Commons Collections 3.1