The entity class is a class designed to make dealing with entities more managable. The concept behind this class is that each entity in the database has the same basic characteristics, so we can put all this together in one class. We are also then easily able to not only get all the values of an entity this way, but we have an easy way to get to its relationships as well.
The entity class also attempts to make code as efficient as possible, but minimizing the number of queries to the database. This is done in two ways.
More detail about entity class :
http://apps.carleton.edu/opensource/reason/developers/docs/entity/
http://www.codersource.net/entity_classes.aspx
http://www.codeproject.com/gen/design/entitydesignpattern.asp
http://www.oracle.com/technology/documentation/berkeley-db/db/collections/tutorial/Entity.html
More at google :
http://www.google.co.id/search?client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&channel=s&hl=id&q=entity+class&meta=&btnG=Telusuri+dengan+Google
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