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Java > Open Source Codes > org > enhydra > shark > appmappersistence > DODSApplicationMappingTransaction


1 /*
2  * DODSApplicationMappingTransaction.java. Created on Apr 29, 2004.
3  */
4 package org.enhydra.shark.appmappersistence;
5
6 import org.enhydra.shark.api.ApplicationMappingTransaction;
7 import org.enhydra.shark.api.TransactionException;
8
9 import com.lutris.appserver.server.sql.DBTransaction;
10
11 /**
12  * Implementation of ApplicationMappingTransaction.
13  *
14  * @author Zoran Milakovic
15  */
16 public class DODSApplicationMappingTransaction implements ApplicationMappingTransaction {
17
18    private static int noOfCreations=0;
19    private static int noOfCommits=0;
20    private static int noOfRollbacks=0;
21    private static int noOfReleases=0;
22
23    private DBTransaction transaction;
24
25    public DODSApplicationMappingTransaction (DBTransaction transaction) {
26       if (DODSApplicationMappingMgr._debug_) {
27          synchronized (DODSApplicationMappingTransaction.class) {
28             noOfCreations++;
29             System.out.println("CREATING Mapping T No"+noOfCreations);
30          }
31          //Thread.dumpStack();
32 }
33       this.transaction=transaction;
34    }
35
36    public DBTransaction getDODSTransaction () {
37       return transaction;
38    }
39
40    public void commit () throws TransactionException {
41       if (DODSApplicationMappingMgr._debug_) {
42          synchronized (DODSApplicationMappingTransaction.class) {
43             System.out.println("COMMITING Mapping T ");
44          }
45          //Thread.dumpStack();
46 }
47       try {
48          transaction.commit();
49          //transaction.release();
50 if (DODSApplicationMappingMgr._debug_) {
51             synchronized (DODSApplicationMappingTransaction.class) {
52                noOfCommits++;
53                System.out.println("COMMITED Mapping T No"+noOfCommits);
54             }
55             //Thread.dumpStack();
56 }
57       } catch (Exception JavaDoc ex) {
58          ex.printStackTrace();
59          throw new TransactionException(ex);
60       }
61    }
62
63    public void rollback () throws TransactionException {
64       try {
65          //transaction.rollback();
66 //transaction.release();
67 if (DODSApplicationMappingMgr._debug_) {
68             synchronized (DODSApplicationMappingTransaction.class) {
69                noOfRollbacks++;
70                System.out.println("ROLLING BACK Mapping T"+noOfRollbacks);
71             }
72             //Thread.dumpStack();
73 }
74       } catch (Exception JavaDoc ex) {
75          if (DODSApplicationMappingMgr._debug_) {
76             System.out.println("ROLLING BACK Mapping T FAILED");
77          }
78          throw new TransactionException(ex);
79       }
80    }
81
82    public void release() throws TransactionException {
83       try {
84          transaction.release();
85          if (DODSApplicationMappingMgr._debug_) {
86             synchronized (DODSApplicationMappingTransaction.class) {
87                noOfReleases++;
88                System.out.println("RELEASE Mapping T "+noOfReleases);
89             }
90          }
91       } catch (Exception JavaDoc ex) {
92          if (DODSApplicationMappingMgr._debug_) {
93             System.out.println("RELEASE Mapping T FAILED");
94          }
95          throw new TransactionException(ex);
96       }
97    }
98
99
100    public static synchronized void info () {
101       if (noOfCreations != noOfReleases) {
102          System.err.println("PANIC!!!\nI've lost mapping transcaton counts.");
103       }
104       System.err.println("MTCRE="+noOfCreations+", MTCOMM="+noOfCommits+", MTROLL="+noOfRollbacks+", MTREL="+noOfReleases);
105    }
106
107 }
108
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