Describes adapter processing for update operations, represented as snapshot updates. A snapshot update involves comparison of child business objects in the enterprise information system, and then action against the child objects depending on the results of the comparison.
Snapshot updates are preformed by retrieving an object from the EIS and comparing it to the target business object. It processes the objects as follows:
An update operation with the verb set to UpdateWithDelete can be used to provide better performance. The UpdateWithDelete verb requires a ChangeSummary that must include business object-level creations, updates, and deletions. This enables the adapter to perform the operation without the overhead of having to retrieve the existing entities from the EIS and do comparisons, because the ChangeSummary indicates what needs to be done. If the ChangeSummary is empty, the adapter does not take any action on the request.
Last updated: Sun Mar 12 11:24:18 2006
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