Package org.apache.commons.collections.functors

Class CloneTransformer

java.lang.Object
org.apache.commons.collections.functors.CloneTransformer
All Implemented Interfaces:
Serializable, Transformer
@Deprecated(since="2021-04-30") public class CloneTransformer extends Object implements Transformer, Serializable
Deprecated.
Apache Commons Collections version 3.x is being deprecated from AEMaaCS. The upgraded version 4.4 of Commons Collections is already included as replacement. Customers are advised to upgrade to this version of the library. Please note: the package name was changed to org.apache.commons.collections4. Further note that there are AEM APIs currently exposing the old collections classes; these will be updated in upcoming releases.
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
See Also:

  • Field Details

    • INSTANCE

      public static final Transformer INSTANCE
      Deprecated.
      Singleton predicate instance

  • Method Details

    • getInstance

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

    • transform

      public Object transform(Object input)
      Deprecated.
      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