The default forward mappings define how to populate the objects of the current model with those of the data source model. Reverse mappings are typically used in PDM-OOM mapping when, for example, data has several sources and you want to define how the data in the OOM is inserted, updated or deleted in the PDM.
To switch to reverse mapping mode, click the left arrow at the top of the area between the Source and Target panes. The left pane is renamed to Target and the right pane to Source, and the mapping tools which appear at the top of each pane are switched:
Forward Mode |
Mapping Type |
Reverse Mode |
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Forward and reverse (read-write) mapping |
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Forward only (read-only) mapping |
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Reverse only (write-only) mapping |
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Solid lines indicate that you can edit the details of the mapping in the Mappings pane (which, in reverse mode, is renamed to Reverse Mappings). In reverse mode, you can modify the default reverse mapping by editing the Insert, Update and Delete sub-tabs.