net.ymate.platform.commons

Class ReentrantLockHelper

java.lang.Object

net.ymate.platform.commons.ReentrantLockHelper

public class ReentrantLockHelper
extends Object

Author:

刘镇 (suninformation@163.com) on 16/5/26 下午3:18

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ReentrantLockHelper.ValueGetter<V>

Field Summary

Fields

Modifier and Type	Field and Description
static ReentrantLockHelper	DEFAULT

Constructor Summary

Constructors

Constructor and Description
ReentrantLockHelper()

Method Summary

Modifier and Type	Method and Description
ReentrantLock	getLocker(String lockKey)
static <K,V> V	putIfAbsent(Map<K,V> target, K key, V value)
static <K,V> V	putIfAbsentAsync(Map<K,V> target, K key, ReentrantLockHelper.ValueGetter<V> valueGetter)
static void	unlock(ReentrantLock lock)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final ReentrantLockHelper DEFAULT

Constructor Detail

ReentrantLockHelper

public ReentrantLockHelper()

Method Detail

putIfAbsent

public static <K,V> V putIfAbsent(Map<K,V> target,
                                  K key,
                                  V value)

putIfAbsentAsync

public static <K,V> V putIfAbsentAsync(Map<K,V> target,
                                       K key,
                                       ReentrantLockHelper.ValueGetter<V> valueGetter)
                                throws Exception

Type Parameters:

K - 键名类型

V - 键值类型

Parameters:

target - 目标映射

key - 键名

valueGetter - 键值回调接口

Returns:

返回键值对象

Throws:

Exception - 可能产生的任何异常

Since:

2.0.7

getLocker

public ReentrantLock getLocker(String lockKey)
                        throws Exception

Throws:

Exception

unlock

public static void unlock(ReentrantLock lock)