org.umber.bellows.transform
Class PassThroughTransformer

java.lang.Object
  org.umber.bellows.transform.PassThroughTransformer

All Implemented Interfaces:

IDatumTransformer

public class PassThroughTransformer

extends java.lang.Object

implements IDatumTransformer

Transformer which always passes the input node to the output, without altering it. This is useful for implementing no-operation transforms that have other side-effects beyond node transformation.

Author:

jsheets

Constructor Summary

PassThroughTransformer()

Method Summary

Datum

transform(Datum inputNode) Performs a transformation on the given node.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PassThroughTransformer

public PassThroughTransformer()

Method Detail

transform

public Datum transform(Datum inputNode)

Performs a transformation on the given node. The transformed results are returned, and may be the input node, or a newly allocated node. The input node instance may or may not be affected by the transform.

This implementation always returns inputNode.

Specified by:

transform in interface IDatumTransformer

Parameters:

inputNode - input Datum node

Returns:

transformed output Datum node