protected internal override object CreateValue(IndexReader reader, object entryKey)
{
FieldCacheImpl.Entry entry = (FieldCacheImpl.Entry)entryKey;
System.String fieldname = entry.field;
int type = entry.type;
System.Globalization.CultureInfo locale = entry.locale;
SortComparatorSource factory = (SortComparatorSource)entry.custom;
ScoreDocComparator comparator;
switch (type)
{
case SortField.AUTO:
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorAuto(reader, fieldname);
break;
case SortField.INT:
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorInt(reader, fieldname);
break;
case SortField.FLOAT:
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorFloat(reader, fieldname);
break;
case SortField.LONG:
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorLong(reader, fieldname);
break;
case SortField.DOUBLE:
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorDouble(reader, fieldname);
break;
case SortField.SHORT:
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorShort(reader, fieldname);
break;
case SortField.BYTE:
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorByte(reader, fieldname);
break;
case SortField.STRING:
if (locale != null)
{
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorStringLocale(reader, fieldname, locale);
}
else
{
comparator = Lucene.Net.Search.FieldSortedHitQueue.ComparatorString(reader, fieldname);
}
break;
case SortField.CUSTOM:
comparator = factory.NewComparator(reader, fieldname);
break;
default:
throw new System.SystemException("unknown field type: " + type);
}
return(comparator);
}
internal static ScoreDocComparator GetCachedComparator(IndexReader reader, System.String field, 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);
}
FieldCacheImpl.Entry entry = (factory != null) ? new FieldCacheImpl.Entry(field, factory) : new FieldCacheImpl.Entry(field, type, locale);
return((ScoreDocComparator)Comparators.Get(reader, entry));
}
/// <summary>Returns a comparator if it is in the cache. </summary>
internal static ScoreDocComparator Lookup(IndexReader reader, System.String field, int type, System.Globalization.CultureInfo locale, System.Object factory)
{
FieldCacheImpl.Entry entry = (factory != null) ? new FieldCacheImpl.Entry(field, factory) : new FieldCacheImpl.Entry(field, type, locale);
lock (Comparators.SyncRoot)
{
System.Collections.Hashtable readerCache = (System.Collections.Hashtable)Comparators[reader];
if (readerCache == null)
{
return(null);
}
return((ScoreDocComparator)readerCache[entry]);
}
}
/// <summary>Stores a comparator into the cache. </summary>
internal static System.Object Store(IndexReader reader, System.String field, int type, System.Globalization.CultureInfo locale, System.Object factory, System.Object value_Renamed)
{
FieldCacheImpl.Entry entry = (factory != null) ? new FieldCacheImpl.Entry(field, factory) : new FieldCacheImpl.Entry(field, type, locale);
lock (Comparators.SyncRoot)
{
System.Collections.Hashtable readerCache = (System.Collections.Hashtable)Comparators[reader];
if (readerCache == null)
{
readerCache = new System.Collections.Hashtable();
Comparators[reader] = readerCache;
}
System.Object tempObject;
tempObject = readerCache[entry];
readerCache[entry] = value_Renamed;
return(tempObject);
}
}
