public override Search.Query Rewrite(IndexReader reader)
{
var luceneSubQueries = new List <Search.Query>();
srndQuery.VisitMatchingTerms(reader, fieldName,
new SimpleTermRewriteMatchingTermVisitor(luceneSubQueries, qf));
return((luceneSubQueries.Count == 0) ? SrndQuery.TheEmptyLcnQuery
: (luceneSubQueries.Count == 1) ? luceneSubQueries.First()
: SrndBooleanQuery.MakeBooleanQuery(
/* luceneSubQueries all have default weight */
luceneSubQueries, BooleanClause.Occur.SHOULD)); /* OR the subquery terms */
}
public override Search.Query MakeLuceneQueryFieldNoBoost(string fieldName, BasicQueryFactory qf)
{
var luceneSubQueries = MakeLuceneSubQueriesField(fieldName, qf);
BooleanQuery bq = new BooleanQuery();
bq.Add(luceneSubQueries.FirstOrDefault(), BooleanClause.Occur.MUST);
SrndBooleanQuery.AddQueriesToBoolean(bq,
// FIXME: do not allow weights on prohibited subqueries.
//luceneSubQueries.subList(1, luceneSubQueries.size()),
luceneSubQueries.Skip(1).ToList(),
// later subqueries: not required, prohibited
BooleanClause.Occur.MUST_NOT);
return(bq);
}
public override Search.Query MakeLuceneQueryFieldNoBoost(string fieldName, BasicQueryFactory qf)
{
var luceneSubQueries = MakeLuceneSubQueriesField(fieldName, qf);
BooleanQuery bq = new BooleanQuery
{
{ luceneSubQueries.Count > 0 ? luceneSubQueries[0] : null, Occur.MUST }
};
SrndBooleanQuery.AddQueriesToBoolean(bq,
// FIXME: do not allow weights on prohibited subqueries.
luceneSubQueries.GetView(1, luceneSubQueries.Count - 1), // LUCENENET: Converted end index to length
// later subqueries: not required, prohibited
Occur.MUST_NOT);
return(bq);
}
public override Search.Query MakeLuceneQueryFieldNoBoost(string fieldName, BasicQueryFactory qf)
{
var luceneSubQueries = MakeLuceneSubQueriesField(fieldName, qf);
BooleanQuery bq = new BooleanQuery
{
{ luceneSubQueries.Count > 0 ? luceneSubQueries[0] : null, Occur.MUST }
};
// LUCENENET: SubList() is slow, so we do an array copy operation instead
var luceneSubQueriesArray = new Search.Query[luceneSubQueries.Count - 1];
for (int i = 1, j = 0; i < luceneSubQueries.Count; i++, j++)
{
luceneSubQueriesArray[j] = luceneSubQueries[i];
}
SrndBooleanQuery.AddQueriesToBoolean(bq,
// FIXME: do not allow weights on prohibited subqueries.
luceneSubQueriesArray,
// later subqueries: not required, prohibited
Occur.MUST_NOT);
return(bq);
}
public override Search.Query MakeLuceneQueryFieldNoBoost(string fieldName, BasicQueryFactory qf)
{
return(SrndBooleanQuery.MakeBooleanQuery( /* subqueries can be individually boosted */
MakeLuceneSubQueriesField(fieldName, qf), BooleanClause.Occur.MUST));
}
