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annotate src/org/dancres/blitz/txn/StoragePersonality.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>
parents:
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1 package org.dancres.blitz.txn;
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Dan Creswell <dan.creswell@gmail.com>
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3 import org.prevayler.implementation.SnapshotPrevayler;
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Dan Creswell <dan.creswell@gmail.com>
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4 import org.prevayler.PrevalentSystem;
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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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6 /**
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Dan Creswell <dan.creswell@gmail.com>
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7 <p>The work of translating the <code>StorageModel</code> instance specified
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Dan Creswell <dan.creswell@gmail.com>
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8 in the configuration file to an appropriate runtime configuration
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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9 is done by instances of this interface obtained from
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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10 <code>StoragePersonalityFactory.getPersonality(StorageModel)</code>.</p>
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Dan Creswell <dan.creswell@gmail.com>
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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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12 <p>The rest of the Blitz core uses the personality to obtain instances
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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13 of certain key components within the system which collectively determine
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Dan Creswell <dan.creswell@gmail.com>
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14 Blitz's storage behaviour.</p>
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Dan Creswell <dan.creswell@gmail.com>
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16 @see org.dancres.blitz.config.StorageModel
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18 @see org.dancres.blitz.txn.StoragePersonalityFactory
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19 */
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20 public interface StoragePersonality {
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21 public CheckpointTrigger getCheckpointTrigger(Checkpointer aCheckpointer);
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Dan Creswell <dan.creswell@gmail.com>
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22
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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23 public SnapshotPrevayler getPrevayler(PrevalentSystem aSystem)
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24 throws Exception;
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25
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26 /**
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27 Invoke this method to clear up underlying storage associated with
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28 the personality.
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29 */
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30 public void destroy();
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31 }