public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
Query result = new ConstantScoreQuery(new MultiTermQueryWrapperFilter <MultiTermQuery>(query));
result.Boost = query.Boost;
return(result);
}
//@Override
public override bool Equals(System.Object obj)
{
if (this == obj)
{
return(true);
}
if (obj == null)
{
return(false);
}
if (GetType() != obj.GetType())
{
return(false);
}
MultiTermQuery other = (MultiTermQuery)obj;
if (System.Convert.ToInt32(Boost) != System.Convert.ToInt32(other.Boost))
{
return(false);
}
if (!internalRewriteMethod.Equals(other.internalRewriteMethod))
{
return(false);
}
return(true);
}
public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
FilteredTermEnum enumerator = query.GetEnum(reader);
BooleanQuery result = new BooleanQuery(true);
int count = 0;
try
{
do
{
Term t = enumerator.Term;
if (t != null)
{
TermQuery tq = new TermQuery(t); // found a match
tq.Boost = query.Boost * enumerator.Difference(); // set the boost
result.Add(tq, Occur.SHOULD); // add to query
count++;
}
}while (enumerator.Next());
}
finally
{
enumerator.Close();
}
query.IncTotalNumberOfTerms(count);
return(result);
}
public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
// Get the enum and start visiting terms. If we
// exhaust the enum before hitting either of the
// cutoffs, we use ConstantBooleanQueryRewrite; else,
// ConstantFilterRewrite:
ICollection <Term> pendingTerms = new List <Term>();
int docCountCutoff = (int)((docCountPercent / 100.0) * reader.MaxDoc);
int termCountLimit = System.Math.Min(BooleanQuery.MaxClauseCount, termCountCutoff);
int docVisitCount = 0;
FilteredTermEnum enumerator = query.GetEnum(reader);
try
{
while (true)
{
Term t = enumerator.Term;
if (t != null)
{
pendingTerms.Add(t);
// Loading the TermInfo from the terms dict here
// should not be costly, because 1) the
// query/filter will load the TermInfo when it
// runs, and 2) the terms dict has a cache:
docVisitCount += reader.DocFreq(t);
}
if (pendingTerms.Count >= termCountLimit || docVisitCount >= docCountCutoff)
{
// Too many terms -- make a filter.
Query result = new ConstantScoreQuery(new MultiTermQueryWrapperFilter <MultiTermQuery>(query));
result.Boost = query.Boost;
return(result);
}
else if (!enumerator.Next())
{
// Enumeration is done, and we hit a small
// enough number of terms & docs -- just make a
// BooleanQuery, now
BooleanQuery bq = new BooleanQuery(true);
foreach (Term term in pendingTerms)
{
TermQuery tq = new TermQuery(term);
bq.Add(tq, Occur.SHOULD);
}
// Strip scores
Query result = new ConstantScoreQuery(new QueryWrapperFilter(bq));
result.Boost = query.Boost;
query.IncTotalNumberOfTerms(pendingTerms.Count);
return(result);
}
}
}
finally
{
enumerator.Close();
}
}
public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
// strip the scores off
Query result = new ConstantScoreQuery(new QueryWrapperFilter(base.Rewrite(reader, query)));
result.Boost = query.Boost;
return(result);
}
public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
Query result = new ConstantScoreQuery(new MultiTermQueryWrapperFilter<MultiTermQuery>(query));
result.Boost = query.Boost;
return result;
}
public abstract Query Rewrite(IndexReader reader, MultiTermQuery query);
public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
// Get the enum and start visiting terms. If we
// exhaust the enum before hitting either of the
// cutoffs, we use ConstantBooleanQueryRewrite; else,
// ConstantFilterRewrite:
ICollection<Term> pendingTerms = new List<Term>();
int docCountCutoff = (int) ((docCountPercent / 100.0) * reader.MaxDoc);
int termCountLimit = System.Math.Min(BooleanQuery.MaxClauseCount, termCountCutoff);
int docVisitCount = 0;
FilteredTermEnum enumerator = query.GetEnum(reader);
try
{
while (true)
{
Term t = enumerator.Term;
if (t != null)
{
pendingTerms.Add(t);
// Loading the TermInfo from the terms dict here
// should not be costly, because 1) the
// query/filter will load the TermInfo when it
// runs, and 2) the terms dict has a cache:
docVisitCount += reader.DocFreq(t);
}
if (pendingTerms.Count >= termCountLimit || docVisitCount >= docCountCutoff)
{
// Too many terms -- make a filter.
Query result = new ConstantScoreQuery(new MultiTermQueryWrapperFilter<MultiTermQuery>(query));
result.Boost = query.Boost;
return result;
}
else if (!enumerator.Next())
{
// Enumeration is done, and we hit a small
// enough number of terms & docs -- just make a
// BooleanQuery, now
BooleanQuery bq = new BooleanQuery(true);
foreach(Term term in pendingTerms)
{
TermQuery tq = new TermQuery(term);
bq.Add(tq, Occur.SHOULD);
}
// Strip scores
Query result = new ConstantScoreQuery(new QueryWrapperFilter(bq));
result.Boost = query.Boost;
query.IncTotalNumberOfTerms(pendingTerms.Count);
return result;
}
}
}
finally
{
enumerator.Close();
}
}
public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
// strip the scores off
Query result = new ConstantScoreQuery(new QueryWrapperFilter(base.Rewrite(reader, query)));
result.Boost = query.Boost;
return result;
}
public override Query Rewrite(IndexReader reader, MultiTermQuery query)
{
FilteredTermEnum enumerator = query.GetEnum(reader);
BooleanQuery result = new BooleanQuery(true);
int count = 0;
try
{
do
{
Term t = enumerator.Term;
if (t != null)
{
TermQuery tq = new TermQuery(t); // found a match
tq.Boost = query.Boost * enumerator.Difference(); // set the boost
result.Add(tq, Occur.SHOULD); // add to query
count++;
}
}
while (enumerator.Next());
}
finally
{
enumerator.Close();
}
query.IncTotalNumberOfTerms(count);
return result;
}
public abstract Query Rewrite(IndexReader reader, MultiTermQuery query);
