Constructor Detail

• ActionUtils

  public ActionUtils()

Method Detail

• doNothing

  public static <T> ActionUtils.Action<T> doNothing()

  Creates an action implementation that simply does nothing.

  Returns:

  an action object with an empty implementation, never null.

• composite

  @SafeVarargs
  public static <T> ActionUtils.Action<T> composite(Action<? super T>... actions)

• composite

  public static <T> ActionUtils.Action<T> composite(Iterable<? extends Action<? super T>> actions)

• doesSomething

  public static boolean doesSomething(Action<?> action)

• onlyIf

  public static <T> ActionUtils.Action<T> onlyIf(Spec<? super T> spec,
                                                 Action<? super T> action)

  Returns an action delegating to the specified action only if the spec is satisfied by the object passed during execution.

  Type Parameters:

  T - the type of the executing objects.

  Parameters:

  spec - a spec to filter the executing objects.

  action - an action to delegate to when the spec is satisfied.

  Returns:

  an action delegating to the specified action only if the spec is satisfied at execution, never null.