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  1. #1
    Join Date
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    Default Association Mappings

    I am following the tutorial
    Hibernate O/R Mappings

    It says there are four types of association mappings:
    Many-to-One
    One-to-One
    One-to-Many
    Many-to-Many

    I always keep forgetting on which side the extra field in the table should be added. Is there any way of remembering it?

  2. #2
    kire9dk is offline Member
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    Sep 2009
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    Default Re: Association Mappings

    The "extra" key of the maping is on the many-to-one mapping or on one of the one-to-one mappings.
    Read about DB, and after that you will never have question like this. BTW for one-to-one mappings you can put on any side the mapping column, but not on bout.
    And for this the decision is all your, you will put it, on the side where you will need it.

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