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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Exploiting Schemas in Data Synchronization
verfasst von : J. Nathan Foster, Michael B. Greenwald, Christian Kirkegaard, Benjamin C. Pierce, Alan Schmitt
Erschienen in: Database Programming Languages
Verlag: Springer Berlin Heidelberg
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Increased reliance on optimistic data replication has led to burgeoning interest in tools and frameworks for
synchronizing
disconnected updates to replicated data. We have implemented a generic synchronization framework, called Harmony, that can be used to build statebased synchronizers for a wide variety of tree-structured data formats. A novel feature of this framework is that the synchronization process—in particular, the recognition of conflicts—is driven by the schema of the structures being synchronized. We formalize Harmony’s synchronization algorithm, state a simple and intuitive specification, and illustrate how it can be used to synchronize trees representing a variety of specific forms of application data, including sets, records, and tuples.