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Java > Open Source Codes > org > contineo > documan > dao > DownloadTicketDAO


1 package org.contineo.documan.dao;
2
3 import org.apache.log4j.Level;
4 import org.apache.log4j.Logger;
5 import org.apache.ojb.broker.PBKey;
6 import org.apache.ojb.broker.PersistenceBroker;
7 import org.apache.ojb.broker.PersistenceBrokerFactory;
8 import org.apache.ojb.broker.query.Criteria;
9 import org.apache.ojb.broker.query.Query;
10 import org.apache.ojb.broker.query.QueryByCriteria;
11 import org.contineo.core.LoggingManager;
12 import org.contineo.documan.DownloadTicket;
13
14 /**
15  * Created on 27.08.2004
16  * @author Michael Scholz
17  */
18 public class DownloadTicketDAO {
19     
20     private PersistenceBroker broker = null;
21     private PBKey pbkey;
22     private Logger logger;
23
24     /**
25      *
26      */
27     public DownloadTicketDAO() {
28         logger = LoggingManager.getLogger(this.getClass());
29         pbkey = new PBKey("contineo");
30     }
31
32     /**
33      * This method persists a download ticket object.
34      * @param ticket DownloadTicket to be stored.
35      * @return True if successfully stored in a database.
36      */
37     public boolean store(DownloadTicket ticket) {
38         boolean result = true;
39         try {
40             broker = PersistenceBrokerFactory.createPersistenceBroker(pbkey);
41             broker.beginTransaction();
42             broker.store(ticket);
43             broker.commitTransaction();
44         }
45         catch (Exception JavaDoc e) {
46             broker.abortTransaction();
47             if (logger.isEnabledFor(Level.ERROR))
48                 logger.error(e.getMessage());
49             result = false;
50         } finally {
51             if (broker != null) broker.close();
52         }
53         return result;
54     }
55     
56     /**
57      * This method deletes a download ticket.
58      * @param historyid ID of the ticket which should be delete.
59      */
60     public boolean delete(int ticketid) {
61         boolean result = true;
62         try {
63             broker = PersistenceBrokerFactory.createPersistenceBroker(pbkey);
64             Criteria crit = new Criteria();
65             crit.addEqualTo("co_ticketid", new Integer JavaDoc(ticketid));
66             Query query = new QueryByCriteria(org.contineo.documan.DownloadTicket.class, crit);
67             broker.beginTransaction();
68             broker.deleteByQuery(query);
69             broker.commitTransaction();
70         }
71         catch (Exception JavaDoc e) {
72             broker.abortTransaction();
73             if (logger.isEnabledFor(Level.ERROR))
74                 logger.error(e.getMessage());
75             result = false;
76         } finally {
77             if (broker != null) broker.close();
78         }
79         return result;
80     }
81     
82     /**
83      * This method finds a download ticket by its primarykey.
84      * @param ticketid Primarykey of the download ticket.
85      * @return DownloadTicket with given primarykey.
86      */
87     public DownloadTicket findByPrimaryKey(String JavaDoc ticketid) {
88         DownloadTicket ticket = null;
89         try {
90             broker = PersistenceBrokerFactory.createPersistenceBroker(pbkey);
91             Criteria crit = new Criteria();
92             crit.addEqualTo("co_ticketid", ticketid);
93             Query query = new QueryByCriteria(org.contineo.documan.DownloadTicket.class, crit);
94             ticket = (DownloadTicket)broker.getObjectByQuery(query);
95         }
96         catch (Exception JavaDoc e) {
97             if (logger.isEnabledFor(Level.ERROR))
98                 logger.error(e.getMessage());
99         } finally {
100             if (broker != null) broker.close();
101         }
102         return ticket;
103     }
104 }
105
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