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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 com.hazelcast.com.liance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.com.hazelcast.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 com.hazelcast.org.apache.calcite.util;

import com.hazelcast.com.google.com.hazelcast.com.on.primitives.Ints;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Extension to {@link ArrayList} to help build an array of int
 * values.
 */
@Deprecated // to be removed before 2.0
public class IntList extends ArrayList {
  //~ Methods ----------------------------------------------------------------

  public int[] toIntArray() {
    return Ints.toArray(this);
  }

  /**
   * Converts a list of {@link Integer} objects to an array of primitive
   * ints.
   *
   * @param integers List of Integer objects
   * @return Array of primitive ints
   *
   * @deprecated Use {@link Ints#toArray(java.util.Collection)}
   */
  @Deprecated // to be removed before 2.0
  public static int[] toArray(List integers) {
    return Ints.toArray(integers);
  }

  /**
   * Returns a list backed by an array of primitive int values.
   *
   * The behavior is analogous to {@link Arrays#asList(Object[])}. Changes
   * to the list are reflected in the array. The list cannot be extended.
   *
   * @param args Array of primitive int values
   * @return List backed by array
   */
  @Deprecated // to be removed before 2.0
  public static List asList(final int[] args) {
    return Ints.asList(args);
  }

  public ImmutableIntList asImmutable() {
    return ImmutableIntList.copyOf(this);
  }
}