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annotate src/org/dancres/blitz/notify/RegistrationOp.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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.notify;
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2
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3 import java.io.IOException;
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5 import org.dancres.blitz.txn.TxnOp;
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6 import org.dancres.blitz.txn.TxnState;
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Dan Creswell <dan.creswell@gmail.com>
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8 /**
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9 Every persistent (those that aren't transaction-related) notify registration
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10 is recorded in the log for purposes of recovery.
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Dan Creswell <dan.creswell@gmail.com>
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11 */
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12 class RegistrationOp implements TxnOp {
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13 private EventGeneratorState theState;
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15 RegistrationOp(EventGeneratorState aState) {
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16 theState = aState;
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17 }
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19 public void commit(TxnState aState) throws IOException {
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20 // Nothing to do
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21 }
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23 public void abort(TxnState aState) throws IOException {
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24 // Nothing to do
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25 }
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27 public void restore(TxnState aState) throws IOException {
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28 EventGeneratorFactory.get().recover(theState);
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29 }
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31 public String toString() {
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32 return " NO : " + theState.toString();
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33 }
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34 }