# Class ExceptionFactory<T>

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

Type Parameters:
  `T` - the type of results supplied by this supplier.

All Implemented Interfaces:
  `Serializable`, `Supplier<T>`, `Factory<T>`

public final class ExceptionFactory<T> extends Object implements Factory<T>, Serializable
Factory implementation that always throws an exception.

Since:
  3.0
See Also:
  - Serialized Form

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final Factory`
  `INSTANCE`
  Singleton predicate instance

- ## Method Summary

  Modifier and Type
  Method
  Description
  `T`
  `create()`
  Always throws an exception.
  `static <T> Factory<T>`
  `exceptionFactory()`
  Factory returning the singleton instance.

  ### Methods inherited from class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

  ### Methods inherited from interface org.apache.commons.collections4.Factory

  `get`

- ## Field Details

  - ### INSTANCE

    public static final Factory INSTANCE
    Singleton predicate instance

- ## Method Details

  - ### exceptionFactory

    public static <T> Factory<T> exceptionFactory()
    Factory returning the singleton instance.
    Type Parameters:
      `T` - the type the factory creates
    Returns:
      the singleton instance
    Since:
      3.1

  - ### create

    public T create()
    Always throws an exception.
    Specified by:
      `create` in interface `Factory<T>`
    Returns:
      never
    Throws:
      `FunctorException` - always