ExceptionTransformer

java.lang.Object
- org.apache.commons.collections.functors.ExceptionTransformer

All Implemented Interfaces:

java.io.Serializable, Transformer
```
public final class ExceptionTransformer
extends java.lang.Object
implements Transformer, java.io.Serializable
```
Transformer implementation that always throws an exception.

Since:

Commons Collections 3.0

Version:

$Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static Transformer INSTANCE
Singleton predicate instance

private static long serialVersionUID
Serial version UID

Constructor Summary

Constructors
Modifier Constructor Description

private ExceptionTransformer()
Restricted constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Transformer`	`getInstance()`	Factory returning the singleton instance.
`java.lang.Object`	`transform(java.lang.Object input)`	Transforms the input to result by cloning it.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    Serial version UID
    
    See Also:
    
    Constant Field Values
  - INSTANCE
```
public static final Transformer INSTANCE
```
    Singleton predicate instance
- Constructor Detail
  - ExceptionTransformer
```
private ExceptionTransformer()
```
    Restricted constructor.
- Method Detail
  - getInstance
```
public static Transformer getInstance()
```
    Factory returning the singleton instance.
    
    Returns:
    
    the singleton instance
    
    Since:
    
    Commons Collections 3.1
  - transform
```
public java.lang.Object transform(java.lang.Object input)
```
    Transforms the input to result by cloning it.
    
    Specified by:
    
    transform in interface Transformer
    
    Parameters:
    
    input - the input object to transform
    
    Returns:
    
    never
    
    Throws:
    
    FunctorException - always