org.apache.commons.collections.functors

Class InstantiateTransformer

java.lang.Object

org.apache.commons.collections.functors.InstantiateTransformer

All Implemented Interfaces:

Serializable, Transformer

public class InstantiateTransformer
extends Object
implements Transformer, Serializable

Transformer implementation that creates a new object instance by reflection.

Since:

Commons Collections 3.0

Version:

$Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $

Author:

Stephen Colebourne

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Transformer	NO_ARG_INSTANCE Singleton instance that uses the no arg constructor

Constructor Summary

Constructors

Constructor and Description
InstantiateTransformer(Class[] paramTypes, Object[] args) Constructor that performs no validation.

Method Summary

Methods

Modifier and Type	Method and Description
static Transformer	getInstance(Class[] paramTypes, Object[] args) Transformer method that performs validation.
Object	transform(Object input) Transforms the input Class object to a result by instantiation.

Methods inherited from class java.lang.Object

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

Field Detail

NO_ARG_INSTANCE

public static final Transformer NO_ARG_INSTANCE

Singleton instance that uses the no arg constructor

Constructor Detail

InstantiateTransformer

public InstantiateTransformer(Class[] paramTypes,
                      Object[] args)

Constructor that performs no validation. Use getInstance if you want that.

Parameters:

paramTypes - the constructor parameter types, not cloned

args - the constructor arguments, not cloned

Method Detail

getInstance

public static Transformer getInstance(Class[] paramTypes,
                      Object[] args)

Transformer method that performs validation.

Parameters:

paramTypes - the constructor parameter types

args - the constructor arguments

Returns:

an instantiate transformer

transform

public Object transform(Object input)

Transforms the input Class object to a result by instantiation.

Specified by:

transform in interface Transformer

Parameters:

input - the input object to transform

Returns:

the transformed result