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|The IXPostingExchange protocol allows Indexing Kit classes to exchange their postings with one another. A posting is an optionally weighted opaque reference. A posting set is an array of postings ordered by handle, with no duplicates.|
|getCount:(unsigned int *)count andPostings:(IXPosting **)thePostings|
|Returns by reference the number of postings, and a copy of the postings sorted by handle. The sender of this message is responsible for freeing the postings when they are no longer needed. Returns self.|
|setCount:(unsigned int)count andPostings:(IXPosting *)postings|
|Sets the number of postings to count, and installs a copy of the contents of postings into the receiver. The sender of this message is responsible for freeing the postings when they are no longer needed. (Note: IXPostingCursor frees its postings.) Returns self.|