/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.exoplatform.services.jcr.impl.core.query.lucene.hits;
import java.util.BitSet;
/**
* Uses a BitSet instance to store the hit set. Keep in mind that this BitSet
* is at least as large as the highest doc number in the hit set. This means it
* might need of lot of memory for large indexes.
*/
public class BitSetHits implements Hits {
private BitSet hits;
private int index;
public BitSetHits() {
hits = new BitSet();
index = 0;
}
/**
* {@inheritDoc}
*/
public void set(int doc) {
hits.set(doc);
}
/**
* {@inheritDoc}
*/
public int next() {
int result = hits.nextSetBit(index);
index = result + 1;
return result;
}
/**
* {@inheritDoc}
*/
public int skipTo(int target) {
index = target;
return next();
}
}