KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > commons > collections > Factory


1 /*
2  * Copyright 2002-2004 The Apache Software Foundation
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 package org.apache.commons.collections;
17
18 /**
19  * Defines a functor interface implemented by classes that create objects.
20  * <p>
21  * A <code>Factory</code> creates an object without using an input parameter.
22  * If an input parameter is required, then {@link Transformer} is more appropriate.
23  * <p>
24  * Standard implementations of common factories are provided by
25  * {@link FactoryUtils}. These include factories that return a constant,
26  * a copy of a prototype or a new instance.
27  *
28  * @since Commons Collections 2.1
29  * @version $Revision: 1.9 $ $Date: 2004/04/14 20:08:57 $
30  *
31  * @author Arron Bates
32  * @author Stephen Colebourne
33  */
34 public interface Factory {
35
36     /**
37      * Create a new object.
38      *
39      * @return a new object
40      * @throws FunctorException (runtime) if the factory cannot create an object
41      */
42     public Object JavaDoc create();
43
44 }
45
Popular Tags