Data layers
I have become rather interested in understanding the interplay between all these data access technologies that keep spouting around our feet. SDO and the ADO.NET Entity model appear to be charging towards a new level of abstraction that is well overdue.
ADO.NET appears to have the lead here based on being able to leverage the LINQ model to give a better programmer experience. However if invokedynamic and closures come to Java this might change rather quickly.
The kicker in this is usually not how high you can go but what you lose in the process of getting there. It will take a while to understand what has been traded but it’s an interesting area to watch never the less.
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