How do I persist objects of a class in hibernate without them having an id attribute but using their object identity.
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How do I persist objects of a class in hibernate without them having an id attribute but using their object identity.
You can’t. You have to designate a field that will hold the
@Idfor the entity.The object identity can’t be translated to a database primary key, and a primary key is a requirement.
There’s another thing here – the
equalsandhashcodemethods are usually incorrectly implemented using the@Idfield. You can use the default implementations which rely on object identity.