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Java > Open Source Codes > org > apache > james > userrepository > ListUsersJdbcRepository


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17
18 package org.apache.james.userrepository;
19
20 import org.apache.james.services.User;
21
22 import java.sql.PreparedStatement JavaDoc;
23 import java.sql.ResultSet JavaDoc;
24 import java.sql.SQLException JavaDoc;
25
26 /**
27  * A very lightweight UserRepository, which persists a list
28  * of user names in a database. Password information is not
29  * persisted.
30  *
31  */
32 public class ListUsersJdbcRepository extends AbstractJdbcUsersRepository
33 {
34     /**
35      * Reads properties for a User from an open ResultSet.
36      *
37      * @param rsUsers A ResultSet with a User record in the current row.
38      * @return A User instance
39      * @throws SQLException
40      * if an exception occurs reading from the ResultSet
41      */
42     protected User readUserFromResultSet(ResultSet JavaDoc rsUsers) throws SQLException JavaDoc {
43         // Get the username, and build a DefaultUser with it.
44 String JavaDoc username = rsUsers.getString(1);
45         DefaultUser user = new DefaultUser(username, "SHA");
46         return user;
47     }
48
49     /**
50      * Set parameters of a PreparedStatement object with
51      * property values from a User instance.
52      * @param user a User instance, which should be an implementation class which
53      * is handled by this Repostory implementation.
54      * @param userInsert a PreparedStatement initialised with SQL taken from the "insert" SQL definition.
55      * @throws SQLException
56      * if an exception occurs while setting parameter values.
57      */
58     protected void setUserForInsertStatement(User user,
59                                              PreparedStatement JavaDoc userInsert)
60         throws SQLException JavaDoc {
61         userInsert.setString(1, user.getUserName());
62     }
63
64     /**
65      * Set parameters of a PreparedStatement object with
66      * property values from a User instance.
67      *
68      * @param user a User instance, which should be an implementation class which
69      * is handled by this Repostory implementation.
70      * @param userUpdate a PreparedStatement initialised with SQL taken from the "update" SQL definition.
71      * @throws SQLException
72      * if an exception occurs while setting parameter values.
73      */
74     protected void setUserForUpdateStatement(User user,
75                                              PreparedStatement JavaDoc userUpdate)
76         throws SQLException JavaDoc {
77         throw new UnsupportedOperationException JavaDoc("Can't update a List User - " +
78                                                 "only has a single attribute.");
79     }
80 }
81
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