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Java > Open Source Codes > net > sourceforge > cruisecontrol > LabelIncrementer


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37  
38 package net.sourceforge.cruisecontrol;
39
40 import org.jdom.Element;
41
42 /**
43  * This interface defines the method required to increment
44  * the label used in the MasterBuild process. This label
45  * is incorporated into the log filename when a successful
46  * build occurs.
47  *
48  * @author <a HREF="mailto:alden@thoughtworks.com">alden almagro</a>
49  * @author <a HREF="mailto:pj@thoughtworks.com">Paul Julius</a>
50  */

51 public interface LabelIncrementer {
52
53     /**
54      * Increments the label when a successful build occurs.
55      * The oldLabel should be transformed and returned as
56      * the new label. The build log is also passed in so that some
57      * more complex label incrementing can be handled. For example, a
58      * label incrementer could find the ant target that was called and increment based on that
59      * information.
60      *
61      * @param buildLog JDOM <code>Element</code> representation of the build.
62      * @param oldLabel Label from previous successful build.
63      * @return Label to use for most recent successful build.
64      */

65     public String JavaDoc incrementLabel(String JavaDoc oldLabel, Element buildLog);
66
67     /**
68      * Some implementations of <code>LabelIncrementer</code>, such as those involving
69      * dates, are better suited to being incremented before building rather
70      * than after building. This method determines whether to increment before
71      * building or after building.
72      */

73     public boolean isPreBuildIncrementer();
74
75     /**
76      * Check the validity of a user-supplied label, making sure that it can be incremented successfully by
77      * the appropriate implementation of <code>LabelIncrementer</code>
78      *
79      * @param label user-supplied label
80      * @return true if it is a valid label.
81      */

82     public boolean isValidLabel(String JavaDoc label);
83
84     /**
85      * Called by Project when there is no previously serialized label.
86      * @return defaultLabel
87      */

88     public String JavaDoc getDefaultLabel();
89 }
90
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