com.hpe.caf.worker.document.util

Class MapFunctions

java.lang.Object

com.hpe.caf.worker.document.util.MapFunctions

public final class MapFunctions
extends Object

Utility functions related to map collections.

Method Summary

Modifier and Type	Method and Description
static <K,V> Map<K,V>	emptyToNull(Map<K,V> map) Returns the specified map if is contains any key-value mappings, or null if the map is empty.
static <K,V> boolean	isNullOrEmpty(Map<K,V> map) Returns true if the specified map is null or contains no key-value mappings.

Methods inherited from class java.lang.Object

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

Method Detail

emptyToNull

public static <K,V> Map<K,V> emptyToNull(Map<K,V> map)

Returns the specified map if is contains any key-value mappings, or null if the map is empty.

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

Parameters:

map - the map to be checked

Returns:

the specified map or null if it is empty

isNullOrEmpty

public static <K,V> boolean isNullOrEmpty(Map<K,V> map)

Returns true if the specified map is null or contains no key-value mappings.

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

Parameters:

map - the map to be checked

Returns:

true if the map if null or contains no key-value mappings