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.commons.betwixt.io.read; 018 019 /** 020 * A Chain of bean creators. 021 * 022 * @author Robert Burrell Donkin 023 * @since 0.5 024 */ 025 public abstract class BeanCreationChain { 026 027 028 //-------------------------------------------------------- Class Methods 029 030 /** 031 * Creates the default <code>BeanCreationChain</code> used when reading beans. 032 * @return a <code>BeanCreationList</code> with the default creators loader in order, not null 033 */ 034 public static final BeanCreationChain createDefaultChain() { 035 // this delegates to the list but this is the canonical version 036 // the implementation may change later 037 return BeanCreationList.createStandardChain(); 038 } 039 040 //-------------------------------------------------------- Instance Methods 041 042 /** 043 * Create a bean for the given mapping in the given context. 044 * 045 * @param elementMapping specifies the mapping between the type and element. 046 * <strong>Note</strong> it is recommended that classes do not store a permenant 047 * reference to this object since these objects may later be reused. 048 * Not null 049 * @param context the context in which this creation happens, not null 050 * @return the bean, possibly null 051 */ 052 public abstract Object create(ElementMapping elementMapping, ReadContext context); 053 054 }