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Relationship Undo Profile

The performance of programmatically reversing the latest update to an existing relationship instance.

The Open Metadata Repository Services (OMRS) interface for a metadata repository defines an optional method for reverting updates on relationship instances:

Method Description
undoRelationshipUpdate reverts the last update that was made to a relationship
Assertions
ID Description
repository-relationship-undo-performance-undoRelationshipUpdate See (2) in detailed logic below.

For every relationship type supported by the technology under test, this profile does the following (in order):

  1. Searches for instancesPerType relationships of that type that have at least one change. (This uses findRelationships with a condition on both metadataCollectionId and version being greater than 1, and its performance is recorded as part of the relationship search profile.)
  2. For each of these relationship instances, undoRelationshipUpdate is called to revert the last change.

Example

So, for example, if the technology under test supports 50 relationship types, and the instancesPerType parameter is set to 100, then this profile will update 50 (types) x 100 (instances per type) = 5000 relationships. (And it will run findRelationships 50 times.)

Caveats

Note the following caveats:

  • Relationship type definitions that have no properties will not be reverted: since there are no properties to update, there will not have been any updated version (and thus nothing to revert).
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