Transformer documentation

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org.apache.commons.collections

Interface Transformer

public interface Transformer

Defines a functor interface implemented by classes that transform one object into another.

A Transformer converts the input object to the output object. The input object should be left unchanged. Transformers are typically used for type conversions, or extracting data from an object.

Standard implementations of common transformers are provided by TransformerUtils . These include method invokation, returning a constant, cloning and returning the string value.

SinceCommons Co

Version$Revision:

AuthorJames Strachan, Stephen Colebourne

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Method Summary
Object	transform( Object input ) Transforms the input object (leaving it unchanged) into some output object.

Method Detail

transform

public Object transform ( Object input )

Transforms the input object (leaving it unchanged) into some output object.

Parameters

Type	Name	Description
Object	input	the object to be transformed, should be left unchanged

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