1 /*
2 * Copyright (c) 2003-2008 by Cosylab d. d.
3 *
4 * This file is part of Java-Common.
5 *
6 * Java-Common is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * Java-Common is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with Java-Common. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 package com.cosylab.util;
21
22 /**
23 * <code>DefaultObjectFactory</code> is default <code>ObjectFactory</code> implementation.
24 * Tries to create a new instance of certain <code>Class</code> objects with default constructor.
25 * If it fails creating new instance with default constructor it will returned <code>null</code>
26 *
27 * @author <a href="mailto:andrej.kosmrlj@cosylab.com">Andrej Kosmrlj</a>
28 * @version $Id: DefaultObjectFactory.java,v 1.3 2008-04-22 12:26:29 jbobnar Exp $
29 *
30 * @since VERSION
31 */
32 public class DefaultObjectFactory implements ObjectFactory {
33
34 Class objectType;
35
36 public DefaultObjectFactory(Class objectType){
37 if (objectType == null) throw new NullPointerException("objectType");
38 if (!PoolableObject.class.isAssignableFrom(objectType)) throw new IllegalArgumentException("objectType !instanceof PoolableObject");
39 this.objectType=objectType;
40 }
41
42 /* (non-Javadoc)
43 * @see com.cosylab.util.ObjectFactory#newInstance()
44 */
45 public PoolableObject newInstance() {
46 PoolableObject o=null;
47 try{
48 o=(PoolableObject)objectType.newInstance();
49 } catch (Exception e){
50 e.printStackTrace();
51 }
52 return o;
53 }
54
55 }