1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 /* 19 * StoreCallback.java 20 * 21 */ 22 23 package javax.jdo.listener; 24 25 /** 26 * This interface is used to notify instances of store events. 27 * @version 2.0 28 * @since 2.0 29 */ 30 public interface StoreCallback { 31 32 /** 33 * Called before the values are stored from this instance to the 34 * data store. 35 * 36 * <P>Data store fields that might have been affected by modified 37 * non-persistent fields should be updated in this method. 38 * 39 * <P>This method is modified by the enhancer so that changes to 40 * persistent fields will be reflected in the data store. 41 * The context in which this call is made allows access to the 42 * <code>PersistenceManager</code> and other persistent JDO instances. 43 */ 44 void jdoPreStore(); 45 }