Package org.apache.commons.collections4.functors

# Class NOPClosure<E>

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

All Implemented Interfaces:
  `Serializable`, `Consumer<E>`, `Closure<E>`

public final class NOPClosure<E> extends Object implements Closure<E>, Serializable
Closure implementation that does nothing.

Since:
  3.0
See Also:
  - Serialized Form

- ## Field Summary

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

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `execute(E input)`
  Do nothing.
  `static <E> Closure<E>`
  `nopClosure()`
  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.Closure

  `accept`

  ### Methods inherited from interface java.util.function.Consumer

  `andThen`

- ## Field Details

  - ### INSTANCE

    public static final Closure INSTANCE
    Singleton predicate instance

- ## Method Details

  - ### nopClosure

    public static <E> Closure<E> nopClosure()
    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)
    Do nothing.
    Specified by:
      `execute` in interface `Closure<E>`
    Parameters:
      `input` - the input object