| Track references to arbitrary objects using proxy and weak references. To
monitor a handle, one should call
WeakReferenceMonitor.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!
author:
Colin Sampaleanu
author:
Juergen Hoeller
since:
1.2
See Also: WeakReferenceMonitor.monitor |
