Package org.apache.commons.collections.functors

Class CloneTransformer

java.lang.Object
org.apache.commons.collections.functors.CloneTransformer
All Implemented Interfaces:
Serializable, Transformer
public class CloneTransformer extends Object implements Transformer, Serializable
Transformer implementation that returns a clone of the input object.

Clone is performed using PrototypeFactory.getInstance(input).create().

WARNING: from v3.2.2 onwards this class will throw an UnsupportedOperationException when trying to serialize or de-serialize an instance to prevent potential remote code execution exploits.

In order to re-enable serialization support for CloneTransformer the following system property can be used (via -Dproperty=true): 

 org.apache.commons.collections.enableUnsafeSerialization
Since:
Commons Collections 3.0
Version:
$Revision: 1713845 $ $Date: 2015-11-11 15:02:16 +0100 (Wed, 11 Nov 2015) $
Author:
Stephen Colebourne
See Also:

  • Field Details

    • INSTANCE

      public static final Transformer INSTANCE
      Singleton predicate instance

  • Method Details

    • getInstance

      public static Transformer getInstance()
      Factory returning the singleton instance.
      Returns:
      the singleton instance
      Since:
      Commons Collections 3.1

    • transform

      public Object transform(Object input)
      Transforms the input to result by cloning it.
      Specified by:
      transform in interface Transformer
      Parameters:
      input - the input object to transform
      Returns:
      the transformed result