Object Synchronizer: A Design Pattern for Object Synchronization

By: A.R. Silva, J.D. Pereira, J.A. Marques

Summary: Decouple object synchronization from object functionality. Invocations on an object are intercepted by a synchronization interface to allow them to proceed, delay, or reject them.

Url: http://albertina.inesc.pt/~ars/dasco.html

Pattern: Object Synchronizer

Decouple object synchronization from object functionality. Invocations on an object are intercepted by a synchronization interface to allow them to proceed, delay, or reject them.

• Active Object decouples operation invocation from execution to simplify synchronized access to shared resources.
• When this pattern is combined with Object Recovery, it allows specialization of synchronization policies that need to recover the object's state.
• This pattern uses Proxy [Gamma+95] and Strategy [Gamma+95]