Class InPredicate

output/java_guava/1.4.17/Predicates.java:608–646

@see Predicates#in(Collection)

  /** @see Predicates#in(Collection) */

  private static class InPredicate<T> implements Predicate<T>, Serializable {

    private final Collection<?> target;
    private InPredicate(Collection<?> target) {
      this.target = checkNotNull(target);
    }

    @Override
    public boolean apply(@Nullable T t) {
      try {
        return target.contains(t);
      } catch (NullPointerException e) {
        return false;
      } catch (ClassCastException e) {
        return false;
      }
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof InPredicate) {
        InPredicate<?> that = (InPredicate<?>) obj;
        return target.equals(that.target);
      }
      return false;
    }

    @Override
    public int hashCode() {
      return target.hashCode();
    }

    @Override
    public String toString() {
      return "Predicates.in(" + target + ")";
    }

    private static final long serialVersionUID = 0;
  }

  /** @see Predicates#compose(Predicate, Function) */