com.hazelcast.util

## Class IterableUtil

- java.lang.Object
- - com.hazelcast.util.IterableUtil

-     public final class IterableUtil
      extends Object

  Utility functions for working with `Iterable`

- - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static <T> T` | `getFirst(Iterable<T> iterable, T defaultValue)`
    `static <T,R> Iterator<R>` | `limit(Iterator<R> iterator, int limit)`
    `static <T,R> Iterable<R>` | `map(Iterable<T> iterable, IFunction<T,R> mapper)` Transform the Iterable by applying a function to each element
    `static <T,R> Iterator<R>` | `map(Iterator<T> iterator, IFunction<T,R> mapper)` Transform the Iterator by applying a function to each element
    `static <T> Iterable<T>` | `nullToEmpty(Iterable<T> iterable)` Return empty Iterable if argument is null

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

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

- - ### Method Detail

    - #### getFirst

          public static <T> T getFirst(Iterable<T> iterable,
                                       T defaultValue)

      Returns:
        First element or defaultValue if iterable is empty

    - #### map

          public static <T,R> Iterable<R> map(Iterable<T> iterable,
                                              IFunction<T,R> mapper)

      Transform the Iterable by applying a function to each element

    - #### map

          public static <T,R> Iterator<R> map(Iterator<T> iterator,
                                              IFunction<T,R> mapper)

      Transform the Iterator by applying a function to each element

    - #### limit

          public static <T,R> Iterator<R> limit(Iterator<R> iterator,
                                                int limit)

    - #### nullToEmpty

          public static <T> Iterable<T> nullToEmpty(Iterable<T> iterable)

      Return empty Iterable if argument is null

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