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annotate src/org/dancres/blitz/txn/LocalTxnManager.java @ 35:6f68e94c1fb8 default tip

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Add CondensedStats monitoring utility, equivalent to vmstat
author Dominic Cleal <dominic-cleal@cdo2.com>
date Thu, 05 Aug 2010 11:07:25 +0100
parents 3dc0c5604566
children
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0
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1 package org.dancres.blitz.txn;
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2
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3 import java.io.Serializable;
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4
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5 import java.rmi.RemoteException;
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6
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7 import net.jini.core.lease.LeaseDeniedException;
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8 import net.jini.core.transaction.*;
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9 import net.jini.core.transaction.server.*;
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10
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11 /**
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12 Provides uniformity in the way we handle transactions. Where all
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13 transactions are seen to have a manager. Thus, all null transactions
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14 have a transaction manager of type LocalTxnManager.
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15 */
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16 class LocalTxnManager implements TransactionManager, Serializable {
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17
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18 /**
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19 * This will need updating based on reading the log or reading
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20 * from checkpoint or both! NO IT WON'T we simply won't log these - they
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21 * either complete or they don't - they're one operation wonders which
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22 * don't need logging.
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23 */
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24 private long theNextNullKey = 0;
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25
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26 long nextId() {
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27 synchronized(this) {
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28 return theNextNullKey++;
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29 }
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30 }
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31
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32 public Created create(long lease)
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33 throws LeaseDeniedException, RemoteException {
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34
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35 throw new org.dancres.util.NotImplementedException();
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36 }
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37
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38 public void join(long id, TransactionParticipant part, long crashCount)
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39 throws UnknownTransactionException, CannotJoinException,
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40 CrashCountException, RemoteException {
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41
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42 throw new org.dancres.util.NotImplementedException();
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43 }
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44
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45 public int getState(long id)
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46 throws UnknownTransactionException, RemoteException {
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47
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48 throw new org.dancres.util.NotImplementedException();
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49 }
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50
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51 public void commit(long id)
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52 throws UnknownTransactionException, CannotCommitException,
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53 RemoteException {
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54
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55 throw new org.dancres.util.NotImplementedException();
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56 }
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57
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58 public void commit(long id, long waitFor)
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59 throws UnknownTransactionException, CannotCommitException,
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60 TimeoutExpiredException, RemoteException {
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61
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62 throw new org.dancres.util.NotImplementedException();
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63 }
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64
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65 public void abort(long id)
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66 throws UnknownTransactionException, CannotAbortException,
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67 RemoteException {
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68
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69 throw new org.dancres.util.NotImplementedException();
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70 }
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71
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72 public void abort(long id, long waitFor)
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73 throws UnknownTransactionException, CannotAbortException,
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74 TimeoutExpiredException, RemoteException {
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75
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76 throw new org.dancres.util.NotImplementedException();
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77 }
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78
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79 public String toString() {
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80 return "NullTxnMgr";
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81 }
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82
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83 public int hashCode() {
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84 return 1;
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85 }
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86
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87 public boolean equals(Object anObject) {
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88 if (anObject instanceof LocalTxnManager)
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89 return true;
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90 else
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91 return false;
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92 }
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93 }