net.objectlab.kit.util

Class CollectionUtil

java.lang.Object

net.objectlab.kit.util.CollectionUtil

public final class CollectionUtil
extends Object

Author:

Benoit Xhenseval

Method Summary

Modifier and Type	Method and Description
static boolean	contains(Collection<?> collection, Object item)
static boolean	containsAny(Collection<?> collection, Object... items)
static boolean	hasOneItem(Collection<?> col)
static boolean	isEmpty(Collection<?> col)
static boolean	isNotEmpty(Collection<?> col)
static boolean	isNotEmpty(Object[] array)
static boolean	noneEmpty(Collection<?>... collections)
static boolean	sameContent(Collection<?> c1, Collection<?> c2)
static int	size(Collection<?> col)

Methods inherited from class java.lang.Object

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

Method Detail

isEmpty

public static boolean isEmpty(Collection<?> col)

Returns:

true if collection null or empty.

isNotEmpty

public static boolean isNotEmpty(Collection<?> col)

Returns:

true if collection not empty (null safe).

hasOneItem

public static boolean hasOneItem(Collection<?> col)

Returns:

true if collection has only 1 item (null safe).

isNotEmpty

public static boolean isNotEmpty(Object[] array)

Returns:

true if array not empty (null safe).

size

public static int size(Collection<?> col)

Returns:

size of collection if not null, otherwise 0.

contains

public static boolean contains(Collection<?> collection,
                               Object item)

Returns:

true if collection is not null and contains the items

containsAny

public static boolean containsAny(Collection<?> collection,
                                  Object... items)

Returns:

true if collection is not null and contains the items

noneEmpty

public static boolean noneEmpty(Collection<?>... collections)

Returns:

true if none of the collections are empty or null

sameContent

public static boolean sameContent(Collection<?> c1,
                                  Collection<?> c2)