/*
 * 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
 *
 *     https://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.
 */

/*
 * StoreCallback.java
 *
 */

package javax.jdo.listener;

/**
 * This interface is used to notify instances of store events.
 *
 * @version 2.0
 * @since 2.0
 */
public interface StoreCallback {

  /**
   * Called before the values are stored from this instance to the data store.
   *
   * <p>Data store fields that might have been affected by modified non-persistent fields should be
   * updated in this method.
   *
   * <p>This method is modified by the enhancer so that changes to persistent fields will be
   * reflected in the data store. The context in which this call is made allows access to the <code>
   * PersistenceManager</code> and other persistent JDO instances.
   */
  void jdoPreStore();
}