org.apache.commons.collections4.functors
Class InstantiateTransformer<T>

java.lang.Object
  org.apache.commons.collections4.functors.InstantiateTransformer<T>

All Implemented Interfaces:

Serializable, Transformer<Class<? extends T>,T>

public class InstantiateTransformer<T>
extends Object
implements Transformer<Class<? extends T>,T>, Serializable

Transformer implementation that creates a new object instance by reflection.

Since:

3.0

Version:

$Id: InstantiateTransformer.java 1477839 2013-04-30 21:32:47Z tn $

See Also:

Serialized Form

NO_ARG_INSTANCE

public static final Transformer<Class<?>,?> NO_ARG_INSTANCE

Singleton instance that uses the no arg constructor

InstantiateTransformer

public InstantiateTransformer(Class<?>[] paramTypes,
                              Object[] args)

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

Note: from 4.0, the input parameters will be cloned

Parameters:

paramTypes - the constructor parameter types

args - the constructor arguments

instantiateTransformer

public static <T> Transformer<Class<? extends T>,T> instantiateTransformer()

Get a typed no-arg instance.

Type Parameters:

T - the type of the objects to be created

Returns:

Transformer, T>

instantiateTransformer

public static <T> Transformer<Class<? extends T>,T> instantiateTransformer(Class<?>[] paramTypes,
                                                                           Object[] args)

Transformer method that performs validation.

Type Parameters:

T - the type of the objects to be created

Parameters:

paramTypes - the constructor parameter types

args - the constructor arguments

Returns:

an instantiate transformer

transform

public T transform(Class<? extends T> input)

Transforms the input Class object to a result by instantiation.

Specified by:

transform in interface Transformer<Class<? extends T>,T>

Parameters:

input - the input object to transform

Returns:

the transformed result