Package no.mnemonic.commons.utilities.collections

Class CollectionUtils

java.lang.Object

no.mnemonic.commons.utilities.collections.CollectionUtils

public class CollectionUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static <T> boolean	isEmpty(Collection<T> collection)	Null-safe operation to test if a collection is empty.
static int	size(Collection collection)	Null-safe operation to determine the size of a collection.

Methods inherited from class java.lang.Object

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

Method Details

isEmpty

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

Null-safe operation to test if a collection is empty.

Type Parameters:

T - Type of collection elements.

Parameters:

collection - Collection to be tested.

Returns:

Returns true if the collection is null or contains no elements.

size

public static int size(Collection collection)

Null-safe operation to determine the size of a collection.

Parameters:

collection - Collection to compute size for.

Returns:

Returns 0 if the collection is null, otherwise the number of elements in the collection.