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/*-
 * Copyright (C) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
 *
 * This file was distributed by Oracle as part of a version of Oracle Berkeley
 * DB Java Edition made available at:
 *
 * http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html
 *
 * Please see the LICENSE file included in the top-level directory of the
 * appropriate version of Oracle Berkeley DB Java Edition for a copy of the
 * license and additional information.
 */

package com.sleepycat.persist.impl;

import java.io.Serializable;

import com.sleepycat.persist.model.EntityModel;

/**
 * Interface to the "read object" methods of the Format class.  For the
 * latest version format, the Format object provides the implementation of
 * these methods.  For an older version format, an evolver object implements
 * this interface to convert from the old to new format.
 *
 * See {@link Format} for a description of each method.
 * @author Mark Hayes
 */
interface Reader extends Serializable {

    void initializeReader(Catalog catalog,
                          EntityModel model,
                          int initVersion,
                          Format oldFormat);

    Object newInstance(EntityInput input, boolean rawAccess)
        throws RefreshException;

    void readPriKey(Object o, EntityInput input, boolean rawAccess)
        throws RefreshException;

    Object readObject(Object o, EntityInput input, boolean rawAccess)
        throws RefreshException;
        
    Accessor getAccessor(boolean rawAccess);
}