I joined a new team that intensively use SDOs. The concept is new to me but I understand that it is used for unified view of data. I'm used to accessing the Java persistence entities on the service via DAO's and I find the additional SDO layer a bit heavy. Can you give real life scenario where you successfully used SDOs? Thank you in advance.
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Note: I'm the EclipseLink SDO lead and a member of the SDO (JSR-235) expert group.
An SDO
DataObjectis definitely heavier than a corresponding POJO. Some advantages of SDOs are the following:TypeandPropertyvs regular reflection in Java.ChangeSummaryis used you have a built in mechanism for tracking changes.