/*
 * 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
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 */

package org.apache.datasketches.quantiles;

/**
 * The hierarchy of Accessors enable easy access to the data structure of the Classic Quantiles sketches.
 *
 * @author Jon Malkin
 */
abstract class DoublesBufferAccessor {

  abstract double get(final int index);

  abstract double set(final int index, final double quantile);

  abstract int numItems();

  abstract double[] getArray(int fromIdx, int numItems);

  abstract void putArray(double[] srcArray, int srcIndex, int dstIndex, int numItems);
}
