org.skfiy.util

类 WeakReferenceMonitor

java.lang.Object

org.skfiy.util.WeakReferenceMonitor

public class WeakReferenceMonitor
extends Object

Track references to arbitrary objects using proxy and weak references. To monitor a handle, one should call monitor(Object, ReleaseListener), with the given handle object usually being a holder that uses the target object underneath, and the release listener performing cleanup of the target object once the handle is not strongly referenced anymore.

When a given handle becomes weakly reachable, the specified listener will be called by a background thread. This thread will only be started lazily and will be stopped once no handles are registered for monitoring anymore, to be restarted if further handles are added.

Thanks to Tomasz Wysocki for the suggestion and the original implementation of this class!

从以下版本开始:

1.2

作者:

Colin Sampaleanu, Juergen Hoeller

另请参阅:

monitor(java.lang.Object, org.skfiy.util.WeakReferenceMonitor.ReleaseListener)

嵌套类概要

嵌套类

限定符和类型	类和说明
static interface	WeakReferenceMonitor.ReleaseListener Listener that is notified when the handle is being released.

构造器概要

构造器

构造器和说明
WeakReferenceMonitor()

方法概要

方法

限定符和类型	方法和说明
static void	monitor(Object handle, WeakReferenceMonitor.ReleaseListener listener) Start to monitor given handle object for becoming weakly reachable.

从类继承的方法 java.lang.Object

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

构造器详细资料

WeakReferenceMonitor

public WeakReferenceMonitor()

方法详细资料

monitor

public static void monitor(Object handle,
           WeakReferenceMonitor.ReleaseListener listener)

Start to monitor given handle object for becoming weakly reachable. When the handle isn't used anymore, the given listener will be called.

参数:

handle - the object that will be monitored

listener - the listener that will be called upon release of the handle