InstantiateTransformer (Commons Collections 3.2.2 API)

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.
WARNING: from v3.2.2 onwards this class will throw an UnsupportedOperationException when trying to serialize or de-serialize an instance to prevent potential remote code execution exploits.
In order to re-enable serialization support for InstantiateTransformer the following system property can be used (via -Dproperty=true):
```
 org.apache.commons.collections.enableUnsafeSerialization
 
```
Since:

Commons Collections 3.0

Version:

$Revision: 1713845 $ $Date: 2015-11-11 15:02:16 +0100 (Wed, 11 Nov 2015) $

Author:

Stephen Colebourne

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static Transformer NO_ARG_INSTANCE
Singleton instance that uses the no arg constructor

Constructor Summary

Constructors
Constructor Description

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

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	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