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Apache Solr (module: core)
/*
* 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.apache.solr.search.join;
import org.apache.lucene.util.FixedBitSet;
class BitSetSlice {
private final FixedBitSet fbs;
private final int off;
private final int len;
BitSetSlice(FixedBitSet fbs, int off, int len) {
this.fbs = fbs;
this.off = off;
this.len = len;
}
public boolean get(int pos) {
return fbs.get(pos + off);
}
public int prevSetBit(int pos) {
int result = fbs.prevSetBit(pos + off) - off;
return (result < 0) ? -1 : result;
}
public int nextSetBit(int pos) {
int result = fbs.nextSetBit(pos + off) - off;
return (result >= len) ? -1 : result;
}
}