org.apache.storm.streams.operations

## Class IdentityFunction<T>

- java.lang.Object
- - org.apache.storm.streams.operations.IdentityFunction<T>

- All Implemented Interfaces:
    Serializable, Function<T,T>, Operation

      public class IdentityFunction<T>
      extends Object
      implements Function<T,T>

  A `Function` that returns the input argument itself as the result.

  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `IdentityFunction()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `T` | `apply(T input)` Applies this function to the given argument.

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

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

- - ### Constructor Detail

    - #### IdentityFunction

          public IdentityFunction()

  - ### Method Detail

    - #### apply

          public T apply(T input)

      Description copied from interface: `Function`

      Applies this function to the given argument.

      Specified by:
        `apply` in interface `Function<T,T>`
      Parameters:
        `input` - the input to the function
      Returns:
        the function result

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