/***************************************************************** * 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.cayenne.dbsync.merge.token; import org.apache.cayenne.map.DbAttribute; import org.apache.cayenne.map.DbEntity; import java.util.List; /** * Class that will be used to set value for null on not null columns */ public interface ValueForNullProvider { /** * @return true if there exist a value that should be inserted for null values */ boolean hasValueFor(DbEntity entity, DbAttribute column); /** * @return a {@link List} of sql to set value for null */ List<String> createSql(DbEntity entity, DbAttribute column); }