NOPTransformer (Apache Commons Collections 4.2 API)

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

All Implemented Interfaces:

Serializable, Transformer<T,T>
```
public class NOPTransformer<T>
extends Object
implements Transformer<T,T>, Serializable
```
Transformer implementation that does nothing.

Since:

3.0

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static Transformer INSTANCE
Singleton predicate instance

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> Transformer<T,T>`	`nopTransformer()`	Factory returning the singleton instance.
`T`	`transform(T input)`	Transforms the input to result by doing nothing.

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

- Field Detail
  - INSTANCE
```
public static final Transformer INSTANCE
```
    Singleton predicate instance
- Method Detail
  - nopTransformer
```
public static <T> Transformer<T,T> nopTransformer()
```
    Factory returning the singleton instance.
    
    Type Parameters:
    
    T - the input/output type
    
    Returns:
    
    the singleton instance
    
    Since:
    
    3.1
  - transform
```
public T transform(T input)
```
    Transforms the input to result by doing nothing.
    
    Specified by:
    
    transform in interface Transformer<T,T>
    
    Parameters:
    
    input - the input object to transform
    
    Returns:
    
    the transformed result which is the input