/// <summary> Creates a hit queue sorted by the given list of fields.</summary>
/// <param name="reader"> Index to use.
/// </param>
/// <param name="fields">Fieldable names, in priority order (highest priority first). Cannot be <code>null</code> or empty.
/// </param>
/// <param name="size"> The number of hits to retain. Must be greater than zero.
/// </param>
/// <throws> IOException </throws>
public FieldSortedHitQueue(IndexReader reader, SortField[] fields, int size)
{
int n = fields.Length;
comparators = new ScoreDocComparator[n];
this.fields = new SortField[n];
for (int i = 0; i < n; ++i)
{
System.String fieldname = fields[i].GetField();
comparators[i] = GetCachedComparator(reader, fieldname, fields[i].GetType(), fields[i].GetParser(), fields[i].GetLocale(), fields[i].GetFactory());
// new SortField instances must only be created when auto-detection is in use
if (fields[i].GetType() == SortField.AUTO)
{
if (comparators[i].SortType() == SortField.STRING)
{
this.fields[i] = new SortField(fieldname, fields[i].GetLocale(), fields[i].GetReverse());
}
else
{
this.fields[i] = new SortField(fieldname, comparators[i].SortType(), fields[i].GetReverse());
}
}
else
{
System.Diagnostics.Debug.Assert(comparators [i].SortType() == fields [i].GetType());
this.fields[i] = fields[i];
}
}
Initialize(size);
}
internal static ScoreDocComparator GetCachedComparator(IndexReader reader, System.String fieldname, int type, System.Globalization.CultureInfo locale, SortComparatorSource factory)
{
if (type == SortField.DOC)
{
return(Lucene.Net.Search.ScoreDocComparator_Fields.INDEXORDER);
}
if (type == SortField.SCORE)
{
return(Lucene.Net.Search.ScoreDocComparator_Fields.RELEVANCE);
}
ScoreDocComparator comparator = Lookup(reader, fieldname, type, locale, factory);
if (comparator == null)
{
switch (type)
{
case SortField.AUTO:
comparator = ComparatorAuto(reader, fieldname);
break;
case SortField.INT:
comparator = ComparatorInt(reader, fieldname);
break;
case SortField.FLOAT:
comparator = ComparatorFloat(reader, fieldname);
break;
case SortField.STRING:
if (locale != null)
{
comparator = ComparatorStringLocale(reader, fieldname, locale);
}
else
{
comparator = ComparatorString(reader, fieldname);
}
break;
case SortField.CUSTOM:
comparator = factory.NewComparator(reader, fieldname);
break;
default:
throw new System.SystemException("unknown field type: " + type);
}
Store(reader, fieldname, type, locale, factory, comparator);
}
return(comparator);
}
/// <summary> Creates a hit queue sorted by the given list of fields.</summary>
/// <param name="reader"> Index to use.
/// </param>
/// <param name="fields">Field names, in priority order (highest priority first). Cannot be <code>null</code> or empty.
/// </param>
/// <param name="size"> The number of hits to retain. Must be greater than zero.
/// </param>
/// <throws> IOException </throws>
internal FieldSortedHitQueue(Monodoc.Lucene.Net.Index.IndexReader reader, SortField[] fields, int size)
{
int n = fields.Length;
comparators = new ScoreDocComparator[n];
this.fields = new SortField[n];
for (int i = 0; i < n; ++i)
{
System.String fieldname = fields[i].GetField();
comparators[i] = GetCachedComparator(reader, fieldname, fields[i].GetType(), fields[i].GetLocale(), fields[i].GetFactory());
this.fields[i] = new SortField(fieldname, comparators[i].SortType(), fields[i].GetReverse());
}
Initialize(size);
}
/// <summary> Creates a hit queue sorted by the given list of fields.</summary>
/// <param name="reader"> Index to use.
/// </param>
/// <param name="fields">Fieldable names, in priority order (highest priority first). Cannot be <code>null</code> or empty.
/// </param>
/// <param name="size"> The number of hits to retain. Must be greater than zero.
/// </param>
/// <throws> IOException </throws>
public FieldSortedHitQueue(IndexReader reader, SortField[] fields, int size)
{
int n = fields.Length;
comparators = new ScoreDocComparator[n];
this.fields = new SortField[n];
for (int i = 0; i < n; ++i)
{
System.String fieldname = fields[i].GetField();
comparators[i] = GetCachedComparator(reader, fieldname, fields[i].GetType(), fields[i].GetLocale(), fields[i].GetFactory());
if (comparators[i].SortType() == SortField.STRING)
{
this.fields[i] = new SortField(fieldname, fields[i].GetLocale(), fields[i].GetReverse());
}
else
{
this.fields[i] = new SortField(fieldname, comparators[i].SortType(), fields[i].GetReverse());
}
}
Initialize(size);
}
static ScoreDocComparator_Fields()
{
RELEVANCE = new AnonymousClassScoreDocComparator();
INDEXORDER = new AnonymousClassScoreDocComparator1();
}
/// <summary> Creates a hit queue sorted by the given list of fields.</summary>
/// <param name="reader"> Index to use.
/// </param>
/// <param name="fields">Fieldable names, in priority order (highest priority first). Cannot be <code>null</code> or empty.
/// </param>
/// <param name="size"> The number of hits to retain. Must be greater than zero.
/// </param>
/// <throws> IOException </throws>
public FieldSortedHitQueue(IndexReader reader, SortField[] fields, int size)
{
int n = fields.Length;
comparators = new ScoreDocComparator[n];
this.fields = new SortField[n];
for (int i = 0; i < n; ++i)
{
System.String fieldname = fields[i].GetField();
comparators[i] = GetCachedComparator(reader, fieldname, fields[i].GetType(), fields[i].GetParser(), fields[i].GetLocale(), fields[i].GetFactory());
// new SortField instances must only be created when auto-detection is in use
if (fields[i].GetType() == SortField.AUTO)
{
if (comparators[i].SortType() == SortField.STRING)
{
this.fields[i] = new SortField(fieldname, fields[i].GetLocale(), fields[i].GetReverse());
}
else
{
this.fields[i] = new SortField(fieldname, comparators[i].SortType(), fields[i].GetReverse());
}
}
else
{
System.Diagnostics.Debug.Assert(comparators [i].SortType() == fields [i].GetType());
this.fields[i] = fields[i];
}
}
Initialize(size);
}
static ScoreDocComparator_Fields()
{
RELEVANCE = new AnonymousClassScoreDocComparator();
INDEXORDER = new AnonymousClassScoreDocComparator1();
}
/// <summary> Creates a hit queue sorted by the given list of fields.</summary>
/// <param name="reader"> Index to use.
/// </param>
/// <param name="fields">Field names, in priority order (highest priority first). Cannot be <code>null</code> or empty.
/// </param>
/// <param name="size"> The number of hits to retain. Must be greater than zero.
/// </param>
/// <throws> IOException </throws>
internal FieldSortedHitQueue(IndexReader reader, SortField[] fields, int size)
{
int n = fields.Length;
comparators = new ScoreDocComparator[n];
this.fields = new SortField[n];
for (int i = 0; i < n; ++i)
{
System.String fieldname = fields[i].GetField();
comparators[i] = GetCachedComparator(reader, fieldname, fields[i].GetType(), fields[i].GetLocale(), fields[i].GetFactory());
this.fields[i] = new SortField(fieldname, comparators[i].SortType(), fields[i].GetReverse());
}
Initialize(size);
}