FactoryTransformer (Apache Commons Collections 4.2 API)

java.lang.Object
- org.apache.commons.collections4.functors.FactoryTransformer<I,O>

All Implemented Interfaces:

Serializable, Transformer<I,O>
```
public class FactoryTransformer<I,O>
extends Object
implements Transformer<I,O>, Serializable
```
Transformer implementation that calls a Factory and returns the result.

Since:

3.0

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

FactoryTransformer(Factory<? extends O> factory)
Constructor that performs no validation.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <I,O> Transformer<I,O>`	`factoryTransformer(Factory<? extends O> factory)`	Factory method that performs validation.
`Factory<? extends O>`	`getFactory()`	Gets the factory.
`O`	`transform(I input)`	Transforms the input by ignoring the input and returning the result of calling the decorated factory.

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

- Constructor Detail
  - FactoryTransformer
```
public FactoryTransformer(Factory<? extends O> factory)
```
    Constructor that performs no validation. Use factoryTransformer if you want that.
    
    Parameters:
    
    factory - the factory to call, not null
- Method Detail
  - factoryTransformer
```
public static <I,O> Transformer<I,O> factoryTransformer(Factory<? extends O> factory)
```
    Factory method that performs validation.
    
    Type Parameters:
    
    I - the input type
    
    O - the output type
    
    Parameters:
    
    factory - the factory to call, not null
    
    Returns:
    
    the factory transformer
    
    Throws:
    
    NullPointerException - if the factory is null
  - transform
```
public O transform(I input)
```
    Transforms the input by ignoring the input and returning the result of calling the decorated factory.
    
    Specified by:
    
    transform in interface Transformer<I,O>
    
    Parameters:
    
    input - the input object to transform
    
    Returns:
    
    the transformed result
  - getFactory
```
public Factory<? extends O> getFactory()
```
    Gets the factory.
    
    Returns:
    
    the factory
    
    Since:
    
    3.1