org.apache.commons.collections
Interface Transformer
- ChainedTransformer, CloneTransformer, ClosureTransformer, ConstantTransformer, ExceptionTransformer, FactoryTransformer, InstantiateTransformer, InvokerTransformer, MapTransformer, NOPTransformer, PredicateTransformer, StringValueTransformer, SwitchTransformer
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.
Version:
- James Strachan
- Stephen Colebourne
- Commons Collections 1.0
Object | transform(Object input) - Transforms the input object (leaving it unchanged) into some output object.
|
transform
public Object transform(Object input)
Transforms the input object (leaving it unchanged) into some output object.
input
- the object to be transformed, should be left unchanged
- a transformed object
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