Cascading Delete

[Aaron Longwell]

I've looked through the docs for this, but they are, forgive me, rather 
unclear.

I have an m:n relationship of Bands and Performances.

I want a cascading delete to occur so that whenever the Band is deleted, 
it's corresponding performances are also deleted.

However, when a performance is deleted, I do not want the corresponding 
Band to be deleted because that Band may have other performances.

My Band class-descriptor has a collection descriptor called 
performances.... do I put the auto-delete here? Do I need to put an 
auto-delete anywhere on the performance? I am unclear as to whether the 
auto-delete attribute says, delete the class-descriptor which contains 
this attribute when this reference is deleted.... or if it says, delete 
this reference if the class-descriptor containing it is deleted.

Thanks for the help,
Aaron
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