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annotate src/org/dancres/blitz/txn/TransientPersonality.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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3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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1 package org.dancres.blitz.txn;
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2
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3 import java.io.File;
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5 import java.util.logging.Level;
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6
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7 import org.prevayler.implementation.NullPrevayler;
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8 import org.prevayler.implementation.SnapshotPrevayler;
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9 import org.prevayler.PrevalentSystem;
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11 import org.dancres.blitz.disk.Disk;
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13 class TransientPersonality implements StoragePersonality {
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14 private String theLogDir;
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16 TransientPersonality(String aLogDir) {
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17 theLogDir = aLogDir;
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19 TxnManager.theLogger.log(Level.INFO, "TransientPersonality");
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21 destroy();
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22
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23 Disk.setTransient(true);
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24 Disk.init();
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25 }
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27 public CheckpointTrigger getCheckpointTrigger(Checkpointer aCheckpointer) {
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28 return new NeverTrigger();
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29 }
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31 public SnapshotPrevayler getPrevayler(PrevalentSystem aSystem)
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32 throws Exception {
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33
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34 return new NullPrevayler(aSystem);
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35 }
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36
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37 public void destroy() {
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38 Disk.destroy();
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39 Disk.clean(theLogDir);
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40 }
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41 }