/*
 * 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.openjpa.jdbc.kernel;

import java.util.Collection;

/**
 * This interface is used to customize the way that updates are made to
 * database records.
 *
 * @author Abe White
 */
public interface UpdateManager {

    /**
     * Whether the store context should maintain the order in which instances
     * are dirtied.
     */
    boolean orderDirty();

    /**
     * Flush the given instances to the data store.
     *
     * @see org.apache.openjpa.kernel.StoreManager#flush
     */
    Collection flush(Collection states, JDBCStore store);
}
