ExceptionClosure (Apache Commons Collections 4.2 API)

java.lang.Object
- org.apache.commons.collections4.functors.ExceptionClosure<E>

All Implemented Interfaces:

Serializable, Closure<E>
```
public final class ExceptionClosure<E>
extends Object
implements Closure<E>, Serializable
```
Closure implementation that always throws an exception.

Since:

3.0

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static Closure INSTANCE
Singleton predicate instance

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <E> Closure<E>`	`exceptionClosure()`	Factory returning the singleton instance.
`void`	`execute(E input)`	Always throw an exception.

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

- Field Detail
  - INSTANCE
```
public static final Closure INSTANCE
```
    Singleton predicate instance
- Method Detail
  - exceptionClosure
```
public static <E> Closure<E> exceptionClosure()
```
    Factory returning the singleton instance.
    
    Type Parameters:
    
    E - the type that the closure acts on
    
    Returns:
    
    the singleton instance
    
    Since:
    
    3.1
  - execute
```
public void execute(E input)
```
    Always throw an exception.
    
    Specified by:
    
    execute in interface Closure<E>
    
    Parameters:
    
    input - the input object
    
    Throws:
    
    FunctorException - always