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LUCENE-1504 -- SerialChainFilter should use DocSet API 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@732031 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Ryan McKinley 2009-01-06 18:13:06 +00:00
parent 873fbbc1f1
commit 43609e891d
1 changed files with 209 additions and 199 deletions
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26
contrib/spatial/src/java/org/apache/lucene/spatial/SerialChainFilter.java
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@ -22,18 +22,20 @@ import java.util.BitSet;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.search.DocIdSet;
import org.apache.lucene.search.Filter;
import org.apache.lucene.util.DocIdBitSet;
/**
*
* Provide a serial chain filter, passing the bitset in with the
* index reader to each of the filters in an ordered fashion.
*
* Based off chain filter, but will some improvements to allow a narrowed down
* Based off chain filter, but with some improvements to allow a narrowed down
* filtering. Traditional filter required iteration through an IndexReader.
*
* By implementing the ISerialChainFilter class, you can create a bits(IndexReader reader, BitSet bits)
* @see org.apache.lucene.spatial.ISerialChainFilter
* @see org.apache.lucene.search.ISerialChainFilter
*
*/
public class SerialChainFilter extends Filter {
@ -65,7 +67,16 @@ public class SerialChainFilter extends Filter {
* @see org.apache.lucene.search.Filter#bits(org.apache.lucene.index.IndexReader)
*/
@Override
public BitSet bits(IndexReader reader) throws CorruptIndexException, IOException {
public BitSet bits(IndexReader reader) throws IOException {
return ((DocIdBitSet)getDocIdSet(reader)).getBitSet();
}
/* (non-Javadoc)
* @see org.apache.lucene.search.Filter#getDocIdSet(org.apache.lucene.index.IndexReader)
*/
@Override
public DocIdSet getDocIdSet(IndexReader reader) throws CorruptIndexException, IOException {
BitSet bits = new BitSet(reader.maxDoc());
int chainSize = chain.length;
@ -77,7 +88,7 @@ public class SerialChainFilter extends Filter {
*/
if (actionType[i] == AND){
try {
bits = (BitSet) chain[i].bits(reader).clone();
bits = (BitSet) ((DocIdBitSet)chain[i].getDocIdSet(reader)).getBitSet().clone();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
@ -114,15 +125,14 @@ public class SerialChainFilter extends Filter {
}
break;
case (AND):
bits.and(chain[i].bits(reader));
bits.and(((DocIdBitSet)chain[i].getDocIdSet(reader)).getBitSet());
break;
case (OR):
bits.and(chain[i].bits(reader));
bits.or(((DocIdBitSet)chain[i].getDocIdSet(reader)).getBitSet());
break;
}
}
return bits;
return new DocIdBitSet(bits);
}
/**