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how to manipulate CMR in Weblogic8.1?

 
Robert Strong
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I'm not clear about how to manipulate CMR in Weblogic8.1.


for 1 to 1 CMR:
suppose there're two entity CMP beans: ManCMP and WomanCMP, when a man marries a woman, use manCMP.setWoman(womanCMP) to establish relationship. if a man divorce a woman, how to sever the relationship? can just use manCMP.setWoman(null)?


for 1 to N CMR:
like a Person and Address relationship, when a Person want to remove an address(just cut off relationship, do not delete address), should it be like below:

ArrayList addressList = person.getAddresses();
addressList.removeAt(i); ???

or like this:

address.setPerson(null); ???


for N to N relationship
can sever relationship the same way as 1 to N relationship?


any help appreciated!!
 
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