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Difference between session.load() and session.get()?
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Cat fritz = (Cat) session.load(Cat.class, "1");
Return the Cat Object with key 1. If there is no Cat Object with key 1 then throw will throw an unrecoverable exception. If the class is mapped with a proxy, load() just returns an uninitialized proxy and does not actually hit the database until you invoke a method of the proxy. This behaviour is very useful if you wish to create an association to an object without actually loading it from the database. It also allows multiple instances to be loaded as a batch if batchsize is defined for the class mapping. Cat fritz = (Cat) session.get(Cat.class, "1"); If you are not certain that a matching row exists, you should use the get() method, which hits the database immediately and returns null if there is no matching row. |
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