Package apoc.util

Class CollectionUtils

java.lang.Object

apoc.util.CollectionUtils

public final class CollectionUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static <T> boolean	containsAny(Collection<?> coll1, T... coll2)	Returns true iff at least one element is in both collections.
static boolean	isEmpty(Collection<?> coll)	Null-safe check if the specified collection is empty.
static boolean	isNotEmpty(Collection<?> coll)	Null-safe check if the specified collection is not empty.

Methods inherited from class java.lang.Object

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

Method Details

isEmpty

public static boolean isEmpty(Collection<?> coll)

Null-safe check if the specified collection is empty.

Parameters:

coll - the collection to check, may be null

Returns:

true if empty or null

isNotEmpty

public static boolean isNotEmpty(Collection<?> coll)

Null-safe check if the specified collection is not empty.

Parameters:

coll - the collection to check, may be null

Returns:

true if non-null and non-empty

containsAny

public static <T> boolean containsAny(Collection<?> coll1,
 T... coll2)

Returns true iff at least one element is in both collections.

Type Parameters:

T - the type of object to lookup in coll1.

Parameters:

coll1 - the first collection, must not be null

coll2 - the second collection, must not be null

Returns:

true iff the intersection of the collections is non-empty