| /* |
| * 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.batchee.extras.typed; |
| |
| import javax.batch.api.chunk.ItemWriter; |
| import java.io.Serializable; |
| import java.util.List; |
| |
| public abstract class TypedItemWriter<R, C extends Serializable> implements ItemWriter { |
| protected abstract void doOpen(C checkpoint); |
| protected abstract C doCheckpointInfo(); |
| protected abstract void doWriteItems(List<R> items); |
| |
| @Override |
| public void open(final Serializable checkpoint) throws Exception { |
| doOpen((C) checkpoint); |
| } |
| |
| @Override |
| public void writeItems(final List<Object> items) throws Exception { |
| doWriteItems((List<R>) items); |
| } |
| |
| @Override |
| public Serializable checkpointInfo() throws Exception { |
| return doCheckpointInfo(); |
| } |
| } |