Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
Description
Extension handlers get a source and a target and are invoked to merge the source into the target. For example if two features are aggregated, a handler is invoked twice, the target is always the resulting feature and the source is the first feature and then the second feature.
If an extension handler wants to act on data of the aggregated features (first and second feature in this case), the handler does not have a clue when it is invoked about the state.
In addition, the same handlers are also used to process a prototype feature - in some cases processing of prototypes might be different from aggregation