/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the "Elastic License
 * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
 * Public License v 1"; you may not use this file except in compliance with, at
 * your election, the "Elastic License 2.0", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.index.fielddata;

import java.io.IOException;

public interface FormattedDocValues {
    /**
     * Advance the doc values reader to the provided doc.
     *
     * @return false if there are no values for this document, true otherwise
     */
    boolean advanceExact(int docId) throws IOException;

    /**
     * A count of the number of values at this document.
     */
    int docValueCount() throws IOException;

    /**
     * Load and format the next value.
     */
    Object nextValue() throws IOException;
}