[Tm4j-developers] [ tm4j-Bugs-1704268 ] Occurence may be member of zero to many different Topics

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Bugs item #1704268, was opened at 2007-04-20 13:58
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Category: In-Memory Impl
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Xuan Baldauf (mediumnet)
Assigned to: Nobody/Anonymous (nobody)
Summary: Occurence may be member of zero to many different Topics

Initial Comment:
By analyzing the current code, I found out following:

(1) Occurences may be removed from their parent topic by calling setOccurences(new Occurence[0]) on the parent topic. Then, these occurences are orphaned.
(2) Occurences may be added to a different topic by calling setOccurences(new Occurence[foreignOccurence]) or by calling addOccurrence(foreignOccurence);
(3) Occurences may be added to a different topic by calling newTopic.setOccurences(new Occurence[foreignOccurence]) while still not being removed from the old parent.

Orphaned occurences are not supported by TMDM or by TMAPI. Moving occurences between different topics is also not supported by TMAPI. Support for orphaning occurences (for other reasons than to finally destroying them) and adding orphaned occurences should thus be removed. Thus, as a first step, the corresponding methods should be deprecated.

I'm not sure wether any TM4J application exists which moves occurences between topics.

I'm also not sure wether any TM4J applications exists which implicitly removes occurences from their parentTopic by calling parentTopic.setOccurences(smallerOccurenceArray) as opposed to just explicitly removing occurences by calling occurence.destroy().

If no such application exists, the methods Topic.addOccurrence() and Topic.setOccurrences() could be simply removed (the remaining functionality of Topic.setOccurences() would be just removing occurences, but this functionality is also available by calling occurence.destroy().)


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