FAQ
Why is the DataMap displayed twice in the "structure" tree of CM?
Once it's directly under the Domain node (and it has children nodes), and
once under the DataNode (it has no children nodes displayed).

Are the two different? Or what's the purpose of this duplication?

Thanx,
Tom.
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  • Mike Kienenberger at Oct 31, 2007 at 5:41 pm
    Both DataMaps and DataNodes are "root" objects.

    The first is the DataMap itself.

    The second is the DataMaps listed for a particular DataNode.
    More than one DataNode may contain the same DataMap.
    On 10/31/07, Thomas Bernhard wrote:

    Why is the DataMap displayed twice in the "structure" tree of CM?
    Once it's directly under the Domain node (and it has children nodes), and
    once under the DataNode (it has no children nodes displayed).

    Are the two different? Or what's the purpose of this duplication?

    Thanx,
    Tom.
    --
    View this message in context: http://www.nabble.com/CM%3A-Why-is-the-DataMap-displayed-twice-in-the-tree--tf4726695.html#a13514732
    Sent from the Cayenne - User mailing list archive at Nabble.com.
  • Andrus Adamchik at Oct 31, 2007 at 7:40 pm

    On Oct 31, 2007, at 7:40 PM, Mike Kienenberger wrote:
    Both DataMaps and DataNodes are "root" objects. ....
    The second is the DataMaps listed for a particular DataNode.
    Yep. This is a representation of an association between DM and DN.
    Sort of a tree view of a graph that is not really a tree. Not sure
    how else to show that link...
    More than one DataNode may contain the same DataMap.
    Actually no, as a DataMap can only be linked to a single DataNode.

    Andrus

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