ClosureTransformer (Apache Commons Collections 4.2 API)

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

All Implemented Interfaces:

Serializable, Transformer<T,T>
```
public class ClosureTransformer<T>
extends Object
implements Transformer<T,T>, Serializable
```
Transformer implementation that calls a Closure using the input object and then returns the input.

Since:

3.0

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

ClosureTransformer(Closure<? super T> closure)
Constructor that performs no validation.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> Transformer<T,T>`	`closureTransformer(Closure<? super T> closure)`	Factory method that performs validation.
`Closure<? super T>`	`getClosure()`	Gets the closure.
`T`	`transform(T input)`	Transforms the input to result by executing a closure.

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

- Constructor Detail
  - ClosureTransformer
```
public ClosureTransformer(Closure<? super T> closure)
```
    Constructor that performs no validation. Use closureTransformer if you want that.
    
    Parameters:
    
    closure - the closure to call, not null
- Method Detail
  - closureTransformer
```
public static <T> Transformer<T,T> closureTransformer(Closure<? super T> closure)
```
    Factory method that performs validation.
    
    Type Parameters:
    
    T - the type of the object to transform
    
    Parameters:
    
    closure - the closure to call, not null
    
    Returns:
    
    the closure transformer
    
    Throws:
    
    NullPointerException - if the closure is null
  - transform
```
public T transform(T input)
```
    Transforms the input to result by executing a closure.
    
    Specified by:
    
    transform in interface Transformer<T,T>
    
    Parameters:
    
    input - the input object to transform
    
    Returns:
    
    the transformed result
  - getClosure
```
public Closure<? super T> getClosure()
```
    Gets the closure.
    
    Returns:
    
    the closure
    
    Since:
    
    3.1