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comparison gnv-artifacts/src/main/java/de/intevation/gnv/transition/TransitionFactory.java @ 824:7e5995c47125

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Added more Javadoc. gnv-artifacts/trunk@913 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 13 Apr 2010 08:49:42 +0000
parents 79c1db3ca7cc
children 2423cefe7d39
comparison
equal deleted inserted replaced
823:499cfbbb61bc 824:7e5995c47125
1 package de.intevation.gnv.transition; 1 package de.intevation.gnv.transition;
2
3 import org.apache.log4j.Logger;
4 import org.w3c.dom.Node;
2 5
3 import de.intevation.gnv.artifacts.GNVArtifactBase; 6 import de.intevation.gnv.artifacts.GNVArtifactBase;
4 7
5 import org.apache.log4j.Logger;
6
7 import org.w3c.dom.Node;
8
9 /** 8 /**
9 * This Factoryclass instantiates Objects of Type Transition.
10 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a> 10 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
11 * 11 *
12 */ 12 */
13 public class TransitionFactory { 13 public class TransitionFactory {
14 14
15 /** 15 /**
16 * the logger, used to log exceptions and additonaly information 16 * the logger, used to log exceptions and additonaly information
17 */ 17 */
18 private static Logger log = Logger.getLogger(GNVArtifactBase.class); 18 private static Logger log = Logger.getLogger(GNVArtifactBase.class);
19 19
20 /**
21 * The Singleton instance of the Transitionfactory.
22 */
20 private static TransitionFactory instance = null; 23 private static TransitionFactory instance = null;
21 24
22 /** 25 /**
23 * Constructor 26 * Constructor
24 */ 27 */
25 public TransitionFactory() { 28 public TransitionFactory() {
26 super(); 29 super();
27 } 30 }
28 31
32 /**
33 * Returns the Instance of this Class.
34 * @return the Instance of this Class.
35 */
29 public static TransitionFactory getInstance() { 36 public static TransitionFactory getInstance() {
30 if (instance == null) { 37 if (instance == null) {
31 instance = new TransitionFactory(); 38 instance = new TransitionFactory();
32 } 39 }
33 return instance; 40 return instance;
34 } 41 }
35 42
43 /**
44 * Creates a new Transition using the Configuration that is provided by the
45 * XML-Node.
46 * @param configuration The configuration that should be used to initialize
47 * the new Transition
48 * @return a new Transition.
49 */
36 public Transition createTransition(Node configuration) { 50 public Transition createTransition(Node configuration) {
37 log.debug("TransitionFactory.createTransition"); 51 log.debug("TransitionFactory.createTransition");
38 Transition state = null; 52 Transition state = null;
39 try { 53 try {
40 String classname = ((org.w3c.dom.Element)configuration).getAttribute("transition"); 54 String classname = ((org.w3c.dom.Element)configuration).getAttribute("transition");
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