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annotate src/org/dancres/blitz/txn/TxnGateway.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.rmi.RemoteException;
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4
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5 import net.jini.core.transaction.UnknownTransactionException;
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6 import net.jini.core.transaction.CannotJoinException;
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7 import net.jini.core.transaction.server.CrashCountException;
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8
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9 /**
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10 <p>TxnManager has no direct link with the remote layer, thus it must rely
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11 on a third party to handle the remote communication necessary. The object
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12 reponsible for this task should implement this interface. </p>
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14 <p>TxnGateway is reponsible for generating appropriate crashcount value.</p>
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16 <p>Various implementations are possible including:
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17
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18 <ul>
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19 <li>Full remote communication with TransactionManager remote objects</li>
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20 <li>Communication with embedded local transaction manager for optimization
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21 or embedded space applications</li>
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22 </ul>
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23 */
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24 public interface TxnGateway {
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25 public void join(TxnId anId)
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26 throws UnknownTransactionException, CannotJoinException,
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27 CrashCountException, RemoteException;
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28
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29 public int getState(TxnId anId)
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30 throws UnknownTransactionException, RemoteException;
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31 }