| /* |
| * 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.cassandra.io; |
| |
| import java.io.IOException; |
| |
| import org.apache.cassandra.io.util.DataInputPlus; |
| import org.apache.cassandra.io.util.DataOutputPlus; |
| |
| /** |
| * A serializer which forwards all its method calls to another serializer. Subclasses should override one or more |
| * methods to modify the behavior of the backing serializer as desired per the decorator pattern. |
| */ |
| public abstract class ForwardingVersionedSerializer<T> implements IVersionedSerializer<T> |
| { |
| protected ForwardingVersionedSerializer() |
| { |
| } |
| |
| /** |
| * Returns the backing delegate instance that methods are forwarded to. |
| * |
| * @param version the server version |
| * @return the backing delegate instance that methods are forwarded to. |
| */ |
| protected abstract IVersionedSerializer<T> delegate(int version); |
| |
| public void serialize(T t, DataOutputPlus out, int version) throws IOException |
| { |
| delegate(version).serialize(t, out, version); |
| } |
| |
| public T deserialize(DataInputPlus in, int version) throws IOException |
| { |
| return delegate(version).deserialize(in, version); |
| } |
| |
| public long serializedSize(T t, int version) |
| { |
| return delegate(version).serializedSize(t, version); |
| } |
| } |