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Java > Open Source Codes > org > springframework > beans > factory > ObjectFactory


1 /*
2  * Copyright 2002-2006 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.springframework.beans.factory;
18
19 import org.springframework.beans.BeansException;
20
21 /**
22  * Defines a factory which can return an Object instance
23  * (possibly shared or independent) when invoked.
24  *
25  * <p>This interface is typically used to encapsulate a generic factory which
26  * returns a new instance (prototype) of some target object on each invocation.
27  *
28  * <p>This interface is similar to FactoryBean, but implementations of the latter
29  * are normally meant to be defined as instances by the user in a BeanFactory,
30  * while implementations of this class are normally meant to be fed as a property
31  * to other beans. As such, the <code>getObject</code> method has different
32  * exception handling behavior.
33  *
34  * @author Colin Sampaleanu
35  * @since 11.05.2004
36  * @see FactoryBean
37  */
38 public interface ObjectFactory {
39
40     /**
41      * Return an instance (possibly shared or independent)
42      * of the object managed by this factory.
43      * @return an instance of the bean (should never be <code>null</code>)
44      * @throws BeansException in case of creation errors
45      */
46     Object JavaDoc getObject() throws BeansException;
47
48 }
49
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