public override DocIdSet GetDocIdSet(IndexReader reader)
{
object coreKey = reader.GetFieldCacheKey();
object delCoreKey = reader.HasDeletions() ? reader.GetDeletesCacheKey() : coreKey;
object cached = cache.Get(reader, coreKey, delCoreKey);
if (cached != null)
{
hitCount++;
if (cached is DocIdSet)
{
return((DocIdSet)cached);
}
else
{
return(new DocIdBitSet((System.Collections.BitArray)cached));
}
}
missCount++;
// cache miss
DocIdSet docIdSet = DocIdSetToCache(filter.GetDocIdSet(reader), reader);
if (docIdSet != null)
{
cache.Put(coreKey, delCoreKey, docIdSet);
}
return(docIdSet);
}
public override DocIdSet GetDocIdSet(IndexReader reader)
{
object coreKey = reader.GetFieldCacheKey();
object delCoreKey = reader.HasDeletions() ? reader.GetDeletesCacheKey() : coreKey;
DocIdSet docIdSet = cache.Get(reader, coreKey, delCoreKey);
if (docIdSet != null)
{
hitCount++;
return(docIdSet);
}
missCount++;
// cache miss
docIdSet = DocIdSetToCache(filter.GetDocIdSet(reader), reader);
if (docIdSet != null)
{
cache.Put(coreKey, delCoreKey, docIdSet);
}
return(docIdSet);
}
public override System.Collections.BitArray Bits(IndexReader reader)
{
object coreKey = reader.GetFieldCacheKey();
object delCoreKey = reader.HasDeletions() ? reader.GetDeletesCacheKey() : coreKey;
object cached = cache.Get(reader, coreKey, delCoreKey);
if (cached != null)
{
if (cached is System.Collections.BitArray)
{
return((System.Collections.BitArray)cached);
}
else if (cached is DocIdBitSet)
{
return(((DocIdBitSet)cached).GetBitSet());
}
// It would be nice to handle the DocIdSet case, but that's not really possible
}
System.Collections.BitArray bits = filter.Bits(reader);
if (bits != null)
{
cache.Put(coreKey, delCoreKey, bits);
}
return(bits);
}
private SpanFilterResult GetCachedResult(IndexReader reader)
{
object coreKey = reader.GetFieldCacheKey();
object delCoreKey = reader.HasDeletions() ? reader.GetDeletesCacheKey() : coreKey;
SpanFilterResult result = (SpanFilterResult)cache.Get(reader, coreKey, delCoreKey);
if (result != null)
{
hitCount++;
return(result);
}
missCount++;
result = filter.BitSpans(reader);
cache.Put(coreKey, delCoreKey, result);
return(result);
}
public Object Get(IndexReader reader, object coreKey, object delCoreKey)
{
lock (this)
{
object value;
if (cache == null)
{
cache = new SupportClass.WeakHashTable();
}
if (deletesMode == DeletesMode.IGNORE)
{
// key on core
value = cache[coreKey];
}
else if (deletesMode == DeletesMode.RECACHE)
{
// key on deletes, if any, else core
value = cache[delCoreKey];
}
else
{
System.Diagnostics.Debug.Assert(deletesMode == DeletesMode.DYNAMIC);
// first try for exact match
value = cache[delCoreKey];
if (value == null)
{
// now for core match, but dynamically AND NOT
// deletions
value = cache[coreKey];
if (value != null && reader.HasDeletions())
{
value = MergeDeletes(reader, value);
}
}
}
return(value);
}
}
/// <summary>this DocIdSet is cacheable, if it works solely with FieldCache and no TermDocs </summary>
public override bool IsCacheable()
{
return(!(mayUseTermDocs && reader.HasDeletions()));
}
private SpanFilterResult GetCachedResult(IndexReader reader)
{
object coreKey = reader.GetFieldCacheKey();
object delCoreKey = reader.HasDeletions() ? reader.GetDeletesCacheKey() : coreKey;
SpanFilterResult result = (SpanFilterResult) cache.Get(reader, coreKey, delCoreKey);
if (result != null) {
hitCount++;
return result;
}
missCount++;
result = filter.BitSpans(reader);
cache.Put(coreKey, delCoreKey, result);
return result;
}
public Object Get(IndexReader reader, object coreKey, object delCoreKey)
{
lock (this)
{
object value;
if (cache == null)
{
cache = new SupportClass.WeakHashTable();
}
if (deletesMode == DeletesMode.IGNORE)
{
// key on core
value = cache[coreKey];
}
else if (deletesMode == DeletesMode.RECACHE)
{
// key on deletes, if any, else core
value = cache[delCoreKey];
}
else
{
System.Diagnostics.Debug.Assert(deletesMode == DeletesMode.DYNAMIC);
// first try for exact match
value = cache[delCoreKey];
if (value == null)
{
// now for core match, but dynamically AND NOT
// deletions
value = cache[coreKey];
if (value != null && reader.HasDeletions())
{
value = MergeDeletes(reader, value);
}
}
}
return value;
}
}
public override DocIdSet GetDocIdSet(IndexReader reader)
{
object coreKey = reader.GetFieldCacheKey();
object delCoreKey = reader.HasDeletions() ? reader.GetDeletesCacheKey() : coreKey;
object cached = cache.Get(reader, coreKey, delCoreKey);
if (cached != null)
{
hitCount++;
if (cached is DocIdSet)
return (DocIdSet) cached;
else
return new DocIdBitSet((System.Collections.BitArray) cached);
}
missCount++;
// cache miss
DocIdSet docIdSet = DocIdSetToCache(filter.GetDocIdSet(reader), reader);
if (docIdSet != null)
{
cache.Put(coreKey, delCoreKey, docIdSet);
}
return docIdSet;
}
public override System.Collections.BitArray Bits(IndexReader reader)
{
object coreKey = reader.GetFieldCacheKey();
object delCoreKey = reader.HasDeletions() ? reader.GetDeletesCacheKey() : coreKey;
object cached = cache.Get(reader, coreKey, delCoreKey);
if (cached != null)
{
if (cached is System.Collections.BitArray)
{
return (System.Collections.BitArray) cached;
}
else if (cached is DocIdBitSet)
return ((DocIdBitSet) cached).GetBitSet();
// It would be nice to handle the DocIdSet case, but that's not really possible
}
System.Collections.BitArray bits = filter.Bits(reader);
if (bits != null)
{
cache.Put(coreKey, delCoreKey, bits);
}
return bits;
}
