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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.search;

/**
 * Throw this exception in {@link LeafCollector#collect(int)} to prematurely terminate collection of
 * the current leaf.
 *
 * Note: IndexSearcher swallows this exception and never re-throws it. As a consequence, you
 * should not catch it when calling the different search methods that {@link IndexSearcher} exposes
 * as it is unnecessary and might hide misuse of this exception.
 */
@SuppressWarnings("serial")
public final class CollectionTerminatedException extends RuntimeException {

  /** Sole constructor. */
  public CollectionTerminatedException() {
    super();
  }

  @Override
  public Throwable fillInStackTrace() {
    // never re-thrown so we can save the expensive stacktrace
    return this;
  }
}