com.gigaspaces.internal.utils

Class Singletons

java.lang.Object

com.gigaspaces.internal.utils.Singletons

public class Singletons
extends Object

Since:

10.0

Author:

Niv Ingberg

Method Summary

Modifier and Type	Method and Description
static Object	compareAndRemove(String name, Object value) The usage of this method is to ensure that a remove followed by putIfAbsent is safe from race conditions between the two calls.
static Object	get(String name)
static Object	putIfAbsent(String name, Object newValue)
static void	remove(String name)

Methods inherited from class java.lang.Object

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

Method Detail

get

public static Object get(String name)

putIfAbsent

public static Object putIfAbsent(String name,
                                 Object newValue)

remove

public static void remove(String name)

compareAndRemove

public static Object compareAndRemove(String name,
                                      Object value)

The usage of this method is to ensure that a remove followed by putIfAbsent is safe from race conditions between the two calls. Acts like compare AND set, but with removal. Will remove the key if the value matches the existing value in the map.

Returns:

the existing value mapped to this key before removal