Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/TxnControlImpl.java @ 34:6f68e94c1fb8 default tip
Add CondensedStats monitoring utility, equivalent to vmstat
author | Dominic Cleal <dominic-cleal@cdo2.com> |
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date | Thu, 05 Aug 2010 11:07:25 +0100 |
parents | 3dc0c5604566 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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1 package org.dancres.blitz; |
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2 |
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3 import java.io.IOException; |
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4 import java.io.Serializable; |
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5 |
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6 import java.rmi.RemoteException; |
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7 |
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8 import net.jini.core.transaction.server.TransactionManager; |
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9 import net.jini.core.transaction.UnknownTransactionException; |
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10 import net.jini.core.transaction.TransactionException; |
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11 |
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12 import org.dancres.blitz.txn.TxnState; |
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13 import org.dancres.blitz.txn.TxnManager; |
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14 |
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15 /** |
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16 All of this could be done in-line within SpaceImpl this just keeps |
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17 the method count down and separates the code a little. Responsible |
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18 for handling external requests against transactions and dispatching |
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19 to the appropriate internal objects. |
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20 |
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21 @todo Serializable here is naughty and strictly to facilitate unit tests |
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22 via TxnMgr class. |
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23 */ |
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24 class TxnControlImpl implements TxnControl, Serializable { |
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25 |
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26 public int prepare(TransactionManager aMgr, long anId) |
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27 throws UnknownTransactionException, RemoteException { |
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28 |
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29 TxnManager myManager = TxnManager.get(); |
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30 |
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31 TxnState myState = myManager.getTxnFor(aMgr, anId); |
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32 |
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33 return myManager.prepare(myState); |
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34 } |
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35 |
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36 public void commit(TransactionManager aMgr, long anId) |
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37 throws UnknownTransactionException, RemoteException { |
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38 |
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39 TxnManager myManager = TxnManager.get(); |
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40 |
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41 TxnState myState = myManager.getTxnFor(aMgr, anId); |
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42 |
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43 myManager.commit(myState); |
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Dan Creswell <dan.creswell@gmail.com>
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44 } |
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45 |
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46 public void abort(TransactionManager aMgr, long anId) |
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47 throws UnknownTransactionException, RemoteException { |
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48 |
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49 TxnManager myManager = TxnManager.get(); |
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50 |
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51 TxnState myState = myManager.getTxnFor(aMgr, anId); |
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52 |
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53 myManager.abort(myState); |
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54 } |
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55 |
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56 public int prepareAndCommit(TransactionManager aMgr, long anId) |
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57 throws UnknownTransactionException, RemoteException { |
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58 |
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59 TxnManager myManager = TxnManager.get(); |
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60 |
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61 TxnState myState = myManager.getTxnFor(aMgr, anId); |
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62 |
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63 return myManager.prepareAndCommit(myState); |
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64 } |
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65 |
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66 public void requestSnapshot() throws TransactionException, IOException { |
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67 TxnManager.get().requestSnapshot(); |
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68 } |
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69 |
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70 public void backup(String aDir) throws IOException { |
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71 TxnManager.get().hotBackup(aDir); |
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72 } |
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73 } |