Re: [Exist-open] Xquery results with grouped elements

[Wolfgang M. <wol...@ex...>]

> Approach 2
>  
> Added all elements of all the matches into single NodeSet and left it to the the xquery to group it and present it to the user since xquery knows how many elements form a single match. This also fails because the NodeSet class does not allow duplicate elements. But my implementation has no duplicates within the same group which is a single match but same elements may apperár in a different group of match.
>  
I do not understand yet what exactly you are trying to build, but I can at least answer the question concerning node sets: a NodeSet instance will always order the items in document order and remove duplicates. This is the general behavior required by the XQuery specs. If you need to create an unordered sequence of items allowing duplicates, you should use a ValueSequence. The value sequence preserves order and allows duplicates (until you call method toNodeSet on it).

Wolfgang