/// <summary> Advances to the first match beyond the current whose document number is
/// greater than or equal to a given target. <br/>
/// The implementation uses {@link TermDocs#SkipTo(int)}.
///
/// </summary>
/// <param name="target">The target document number.
/// </param>
/// <returns> the matching document or -1 if none exist.
/// </returns>
public override int Advance(int target)
{
// first scan in cache
for (pointer++; pointer < pointerMax; pointer++)
{
if (docs[pointer] >= target)
{
return(doc = docs[pointer]);
}
}
// not found in cache, seek underlying stream
bool result = termDocs.SkipTo(target);
if (result)
{
pointerMax = 1;
pointer = 0;
docs[pointer] = doc = termDocs.Doc();
freqs[pointer] = termDocs.Freq();
}
else
{
doc = NO_MORE_DOCS;
}
return(doc);
}
protected internal override System.Object CreateValue(IndexReader reader, Entry entryKey)
{
System.String field = StringHelper.Intern((System.String)entryKey.field);
System.String[] retArray = new System.String[reader.MaxDoc()];
TermDocs termDocs = reader.TermDocs();
TermEnum termEnum = reader.Terms(new Term(field));
try
{
do
{
Term term = termEnum.Term();
if (term == null || (System.Object)term.Field() != (System.Object)field)
{
break;
}
System.String termval = term.Text();
termDocs.Seek(termEnum);
while (termDocs.Next())
{
retArray[termDocs.Doc()] = termval;
}
}while (termEnum.Next());
}
finally
{
termDocs.Close();
termEnum.Close();
}
return(retArray);
}
protected internal override System.Object CreateValue(IndexReader reader, Entry entryKey)
{
Entry entry = (Entry)entryKey;
System.String field = entry.field;
SortComparator comparator = (SortComparator)entry.custom;
System.IComparable[] retArray = new System.IComparable[reader.MaxDoc()];
TermDocs termDocs = reader.TermDocs();
TermEnum termEnum = reader.Terms(new Term(field));
try
{
do
{
Term term = termEnum.Term();
if (term == null || (System.Object)term.Field() != (System.Object)field)
{
break;
}
System.IComparable termval = comparator.GetComparable(term.Text());
termDocs.Seek(termEnum);
while (termDocs.Next())
{
retArray[termDocs.Doc()] = termval;
}
}while (termEnum.Next());
}
finally
{
termDocs.Close();
termEnum.Close();
}
return(retArray);
}
protected internal override System.Object CreateValue(IndexReader reader, Entry entryKey)
{
Entry entry = (Entry)entryKey;
System.String field = entry.field;
FloatParser parser = (FloatParser)entry.custom;
if (parser == null)
{
try
{
return(wrapper.GetFloats(reader, field, Mono.Lucene.Net.Search.FieldCache_Fields.DEFAULT_FLOAT_PARSER));
}
catch (System.FormatException ne)
{
return(wrapper.GetFloats(reader, field, Mono.Lucene.Net.Search.FieldCache_Fields.NUMERIC_UTILS_FLOAT_PARSER));
}
}
float[] retArray = null;
TermDocs termDocs = reader.TermDocs();
TermEnum termEnum = reader.Terms(new Term(field));
try
{
do
{
Term term = termEnum.Term();
if (term == null || (System.Object)term.Field() != (System.Object)field)
{
break;
}
float termval = parser.ParseFloat(term.Text());
if (retArray == null)
{
// late init
retArray = new float[reader.MaxDoc()];
}
termDocs.Seek(termEnum);
while (termDocs.Next())
{
retArray[termDocs.Doc()] = termval;
}
}while (termEnum.Next());
}
catch (StopFillCacheException stop)
{
}
finally
{
termDocs.Close();
termEnum.Close();
}
if (retArray == null)
{
// no values
retArray = new float[reader.MaxDoc()];
}
return(retArray);
}
protected internal override System.Object CreateValue(IndexReader reader, Entry entryKey)
{
Entry entry = (Entry)entryKey;
System.String field = entry.field;
ShortParser parser = (ShortParser)entry.custom;
if (parser == null)
{
return(wrapper.GetShorts(reader, field, Mono.Lucene.Net.Search.FieldCache_Fields.DEFAULT_SHORT_PARSER));
}
short[] retArray = new short[reader.MaxDoc()];
TermDocs termDocs = reader.TermDocs();
TermEnum termEnum = reader.Terms(new Term(field));
try
{
do
{
Term term = termEnum.Term();
if (term == null || (System.Object)term.Field() != (System.Object)field)
{
break;
}
short termval = parser.ParseShort(term.Text());
termDocs.Seek(termEnum);
while (termDocs.Next())
{
retArray[termDocs.Doc()] = termval;
}
}while (termEnum.Next());
}
catch (StopFillCacheException stop)
{
}
finally
{
termDocs.Close();
termEnum.Close();
}
return(retArray);
}
protected internal override System.Object CreateValue(IndexReader reader, Entry entryKey)
{
System.String field = StringHelper.Intern((System.String)entryKey.field);
int[] retArray = new int[reader.MaxDoc()];
System.String[] mterms = new System.String[reader.MaxDoc() + 1];
TermDocs termDocs = reader.TermDocs();
TermEnum termEnum = reader.Terms(new Term(field));
int t = 0; // current term number
// an entry for documents that have no terms in this field
// should a document with no terms be at top or bottom?
// this puts them at the top - if it is changed, FieldDocSortedHitQueue
// needs to change as well.
mterms[t++] = null;
try
{
do
{
Term term = termEnum.Term();
if (term == null || term.Field() != field || t >= mterms.Length)
{
break;
}
// store term text
mterms[t] = term.Text();
termDocs.Seek(termEnum);
while (termDocs.Next())
{
retArray[termDocs.Doc()] = t;
}
t++;
}while (termEnum.Next());
}
finally
{
termDocs.Close();
termEnum.Close();
}
if (t == 0)
{
// if there are no terms, make the term array
// have a single null entry
mterms = new System.String[1];
}
else if (t < mterms.Length)
{
// if there are less terms than documents,
// trim off the dead array space
System.String[] terms = new System.String[t];
Array.Copy(mterms, 0, terms, 0, t);
mterms = terms;
}
StringIndex value_Renamed = new StringIndex(retArray, mterms);
return(value_Renamed);
}
public override int Doc()
{
return(termDocs.Doc());
}
public override int NextDoc()
{
return(doc = termDocs.Next()?termDocs.Doc():NO_MORE_DOCS);
}
