Object Recovery

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

Summary: Define a generic object recovery algorithm and decouple the recovery portion from the object's functionality to support different algorithms.

Pattern: Object Recovery

Define a generic object recovery algorithm and decouple the recovery portion from the object's functionality to support different algorithms. Isolate recovery from persistence and object synchronization issues, allowing the recovery of transient objects to a previously defined state. This can also implement user undo and redo models of interaction.

Memento [Gamma+95] can store the recovery state.
Decorator [Gamma+95] can add recovery responsibilities.
Strategy [Gamma+95] can provide recovery policies.
Command [Gamma+95] and Command Processor [Buschmann+96] also support undo/redo.

Published in: PLoPD3
Pages: 261-276
Category: Architectural, Database, Distributed Systems, Fault-Tolerant Systems, GUI Development, Persistence

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