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In this article I'll describe a possible base class for domain entities which implements a surrogate key as identity field and provides equality and hash code. Introduction Martin Fowler writes in his PoEAA book: " The identity field saves a database ID field in an object to maintain identity...
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Part 1 Introduction Martin Fowler writes : "When you're pulling data in and out of a database, it's important to keep track of what you've changed; otherwise, that data won't be written back into the database. Similarly you have to insert new objects you create and remove any objects...