Method filter

output/java_guava/1.4.17/Iterables.java:615–625

Returns a view of unfiltered containing all elements that satisfy the input predicate retainIfTrue. The returned iterable's iterator does not support remove().

(
    final Iterable<T> unfiltered, final Predicate<? super T> retainIfTrue)

  public static <T> Iterable<T> filter(
    final Iterable<T> unfiltered, final Predicate<? super T> retainIfTrue) {
    checkNotNull(unfiltered);
    checkNotNull(retainIfTrue);
    return new FluentIterable<T>() {
      @Override
      public Iterator<T> iterator() {
        return Iterators.filter(unfiltered.iterator(), retainIfTrue);
      }
    };
  }

  /**
   * Returns a view of {@code unfiltered} containing all elements that are of