Terence - you need to do the rewrite using the appropriate
IndexReader for a single index. You can use query.rewrite(IndexReader).
Erik
On Jul 7, 2005, at 3:04 PM, Terence Lai wrote:
Hi all,
I am currently using Lucene 1.4.2. Since my search documents are
huge, I divide the search index into different index directory and
make use of the ParallelMultiSearcher to perform the search.
Currently, I am working on the highlight feature using Lucene
Sandbox Highlighter. One of the requirements is to convert the
Query into the primitive form. I invoked the
ParallelMultiSearcher.rewrite(Query). However, I got the exception,
UnsupportedOperationException.
I start studying the source code. I discover that the
ParallelMultiSearcher calls Query.combine() method to combine
multiple primitive query into a single one. By looking at the
Query.java, the method hasn't been implemented as you see below:
/** Expert: called when re-writing queries under MultiSearcher.
*
* <p>Only implemented by derived queries, with no
* [EMAIL PROTECTED] #createWeight(Searcher)} implementatation.
*/
public Query combine(Query[] queries) {
throw new UnsupportedOperationException();
}
Does anyone know any alternative to rewrite the query if I have
multiple index directories?
Thanks,
Terence
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