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Lucene Queries Module

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/*
 * 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.lucene.queries.spans;

import org.apache.lucene.util.PriorityQueue;

class SpanPositionQueue extends PriorityQueue {
  SpanPositionQueue(int maxSize) {
    super(maxSize); // do not prepopulate
  }

  @Override
  protected boolean lessThan(Spans s1, Spans s2) {
    int start1 = s1.startPosition();
    int start2 = s2.startPosition();
    return (start1 < start2)
        ? true
        : (start1 == start2) ? s1.endPosition() < s2.endPosition() : false;
  }
}