001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.kahadb.util; 018 019 /** 020 * Convenience base class for Marshaller implementations which do not deepCopy and 021 * which use variable size encodings. 022 * 023 * @author chirino 024 * @param <T> 025 */ 026 abstract public class VariableMarshaller<T> implements Marshaller<T> { 027 028 public int getFixedSize() { 029 return -1; 030 } 031 032 public boolean isDeepCopySupported() { 033 return false; 034 } 035 036 public T deepCopy(T source) { 037 throw new UnsupportedOperationException(); 038 } 039 040 }