At minimum, ContainsItem() must always be supported. It returns 1 iff the given pItem is in the set S.

Find expects pQID in the format $LB(CUBE,slicerKey). The appropriate slotNo to read the slicer from the cache is calculated from the chunk number as needed.

For a given chunk number pChunk, return the corresponding actual bitmap string.

This method must be implemented when %FIND is used.

This method simulates the usage of $ORDER() to traverse through the chunks of a bitmap index or a bitmap temp-file that would represent the set S.

For a given chunk number pChunk, find the first chunk number > pChunk and return it in .pChunk, with the method return value being the corresponding actual bitmap string. Return .pChunk="" if none found.

Note that when returning a positive .pChunk, it's OK for the returned bitmap b to have no bits set to 1, including b="" . On the other hand, it's also OK for the method implementation to skip such a chunk and proceed to the next pChunk.

This method must be implemented when %FIND is used.

This method simulates the usage of $ORDER() to traverse backwards through the chunks of a bitmap index or a bitmap temp-file that would represent the set S.

For a given chunk number pChunk, find the first chunk number < pChunk and return it in .pChunk, with the method return value being the corresponding actual bitmap string. Return .pChunk="" if none found.

Note that when returning a positive .pChunk, it's OK for the returned bitmap b to have no bits set to 1, including b="" . On the other hand, it's also OK for the method implementation to skip such a chunk and proceed to the next pChunk.

This method must be implemented when %FIND is used.