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Java > Open Source Codes > org > objectstyle > cayenne > modeler > dialog > db > ConnectionWizard


1 /* ====================================================================
2  *
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56 package org.objectstyle.cayenne.modeler.dialog.db;
57
58 import java.sql.Connection JavaDoc;
59
60 import org.objectstyle.cayenne.dba.DbAdapter;
61 import org.objectstyle.cayenne.modeler.ClassLoadingService;
62 import org.objectstyle.cayenne.modeler.pref.DBConnectionInfo;
63 import org.objectstyle.cayenne.modeler.util.CayenneController;
64
65 /**
66  * A component for choosing a DataSource. Users can choose from the DataSources configured
67  * in preferences, and one extra set of connection settings. This object will create and
68  * keep open a JDBC connection. It is caller responsibility to dispose of it properly.
69  *
70  * @author Andrei Adamchik
71  */
72 // TODO: after refactoring DbLoader to accept a DataSource instead of connection this
73 // dialog should be merged with superclass - DataSourceWizard.
74 public class ConnectionWizard extends DataSourceWizard {
75
76     protected Connection JavaDoc connection;
77     protected DbAdapter adapter;
78
79     public ConnectionWizard(CayenneController parent, String JavaDoc title,
80             String JavaDoc altDataSourceKey, DBConnectionInfo altDataSource) {
81         super(parent, title, altDataSourceKey, altDataSource);
82     }
83
84     /**
85      * Overrides superclass to keep an open connection around for the caller's use.
86      */
87     public void okAction() {
88         // build connection and adapter...
89
90         DBConnectionInfo info = getConnectionInfo();
91         ClassLoadingService classLoader = getApplication().getClassLoadingService();
92
93         try {
94             this.adapter = info.makeAdapter(classLoader);
95         }
96         catch (Throwable JavaDoc th) {
97             reportError("DbAdapter Error", th);
98             return;
99         }
100
101         try {
102             this.connection = info.makeDataSource(classLoader).getConnection();
103         }
104         catch (Throwable JavaDoc th) {
105             reportError("Connection Error", th);
106             return;
107         }
108
109         // set success flag, and unblock the caller...
110 canceled = false;
111         view.dispose();
112     }
113
114     /**
115      * Returns configured DB connection.
116      */
117     public Connection JavaDoc getConnection() {
118         return connection;
119     }
120
121     /**
122      * Returns configured DbAdapter.
123      */
124     public DbAdapter getAdapter() {
125         return adapter;
126     }
127 }
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