org.apache.reef.util

Class CollectionUtils

java.lang.Object

org.apache.reef.util.CollectionUtils

public final class CollectionUtils
extends Object

Utilities for collection classes.

Method Summary

Methods

Modifier and Type	Method and Description
static <T> boolean	isEmpty(Collection<T> parameter) Checks if the collection is null or empty.
static <T> boolean	isNotEmpty(Collection<T> parameter) Checks if the collection is not null and not empty.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isEmpty

public static <T> boolean isEmpty(Collection<T> parameter)

Checks if the collection is null or empty.

Type Parameters:

T - a type of element of collection

Parameters:

parameter - the collection

Returns:

true if the collection is null or empty

isNotEmpty

public static <T> boolean isNotEmpty(Collection<T> parameter)

Checks if the collection is not null and not empty.

Type Parameters:

T - a type of element of collection

Parameters:

parameter - the collection

Returns:

true if the collection is not null nor empty