[CLucene-dev] Re: [sword-devel] clucene-sorting
Ben van Klinken
bvanklinken at gmail.com
Fri Dec 23 05:46:59 MST 2005
As of clucene 0.9 you can also write a custom sorter, which could
directly compare the verses, thus saving index size - at the cost of a
slower first search (subsequent searches can have their sort cached).
On 12/23/05, DM Smith <dmsmith555 at yahoo.com> wrote:
> L.J.Arthur Neil wrote:
> Hi All,
> How can I do soring.I am able to Index and order .But the Sort function
> doesn't work.
> This question may be best answered by the lucene users mailing list.
> What are you attempting to do? It is not clear from your example what you
> are sorting upon. The Sword modules do not have a "modified" field. What is
> left uncommented is the return of documents in index order, which should be
> the same as verse order when searching a Bible. Is this not working?
> In order to sort, Lucene requires that the field is represented a certain
> way in the index. If you let us know which field you are going after, we can
> check to see if that field is constructed sufficient for sorting.
> One way to sort is to do it externally to lucene. For example, with each
> verse in the index is a stored verse reference. This can be converted to a
> number representing its ordering in the Bible. Setting a bit in a bit map
> and then iterating over the bits in the bit map will give the verses in
> Bible order.
> In His Service,
> DM Smith
> I have used the following code;
> Query* q =
> //buf = q->toString(_T("contents"));
> // _tprintf(_T("Searching for: %s\n\n"), buf);
> //SortField *sort_Field = new SortField(_T("modified"));
> //SortField *sort_Fields = new SortField(*sort_Field);
> //Sort *sort = new Sort(sort_Field);
> //sort->setSort( new SortField (_T("modified"),
> SortField::STRING, true) );
> //sort->setSort( _T("modified"),true);
> //sort->setSort( _T("modified") ); */
> Hits* h;
> h = searcher->search(q, sort::INDEXORDER);
> //h = searcher->search(q);
> printf("Unrecoverable error occured!!!Please do
> search again...\n");
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