| /* |
| * 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.directmemory.lightning.base; |
| |
| import java.io.IOException; |
| |
| import org.apache.directmemory.lightning.Marshaller; |
| import org.apache.directmemory.lightning.SerializationContext; |
| import org.apache.directmemory.lightning.Source; |
| import org.apache.directmemory.lightning.Target; |
| import org.apache.directmemory.lightning.metadata.PropertyDescriptor; |
| |
| public abstract class AbstractMarshaller |
| implements Marshaller |
| { |
| |
| @Override |
| public <V> V unmarshall( PropertyDescriptor propertyDescriptor, Source source, |
| SerializationContext serializationContext ) |
| throws IOException |
| { |
| return null; |
| } |
| |
| protected boolean writePossibleNull( Object value, Target target ) |
| throws IOException |
| { |
| target.writeByte( (byte) ( value == null ? 1 : 0 ) ); |
| return value != null; |
| } |
| |
| protected boolean isNull( Source source ) |
| throws IOException |
| { |
| byte isNull = source.readByte(); |
| return isNull == 1 ? true : false; |
| } |
| } |