1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.betwixt.io.read;
18
19 /**
20 * A Chain of bean creators.
21 *
22 * @author Robert Burrell Donkin
23 * @since 0.5
24 */
25 public abstract class BeanCreationChain {
26
27
28 //-------------------------------------------------------- Class Methods
29
30 /**
31 * Creates the default <code>BeanCreationChain</code> used when reading beans.
32 * @return a <code>BeanCreationList</code> with the default creators loader in order, not null
33 */
34 public static final BeanCreationChain createDefaultChain() {
35 // this delegates to the list but this is the canonical version
36 // the implementation may change later
37 return BeanCreationList.createStandardChain();
38 }
39
40 //-------------------------------------------------------- Instance Methods
41
42 /**
43 * Create a bean for the given mapping in the given context.
44 *
45 * @param elementMapping specifies the mapping between the type and element.
46 * <strong>Note</strong> it is recommended that classes do not store a permenant
47 * reference to this object since these objects may later be reused.
48 * Not null
49 * @param context the context in which this creation happens, not null
50 * @return the bean, possibly null
51 */
52 public abstract Object create(ElementMapping elementMapping, ReadContext context);
53
54 }