Hey all, 

I'm just looking at composite BOs, which contain an array of other BOs
inside them, and looking at some ways to expose the array of objects
inside it.

If we were talking about Comments on a BlogPost some things I was
looking at where:

BlogPost.getComment() where it returns the array by reference.  
I'm not so keen on this one because it allows full access to the
underlying array, and doesn't stop anyone from adding the wrong sort
of object to the array

BlogPost.getComment() where it returns a new array in which the
Comment BO's are copied into it.
I think this is slightly better than the above, as the array from
within the BlogPost is still encapsulated, and you can write your
BlogPost.addComment(...), BlogPost.removeComment(...) etc methods from
here.

Having functions along the lines of:
BlogPost.addComment(...) : void
BlogPost.removeComment(...) : void
BlogPost.clearComments() : void 
BlogPost.containsComment(...) : boolean
BlogPost.getCommentIterator() : java.util.Iterator - which is used to
give the ability to loop through the items in a Array.

I prefer this approach, as you can finely decide which of these
methods are appropriate for use on a BO, but obviously uses the
underlying Vector of a CFArray to create the Iterator.

I'm just wondering your thoughts on your preferred approach (I hate to
say 'best'), and if you can see any issues with any of the above
methods, particularly exposing an Iterator.

Cheers,

Mark
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