Mercurial > hg > blitz_condensed
view src/org/dancres/blitz/txn/TxnOp.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 |
children |
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package org.dancres.blitz.txn; import java.io.Serializable; import java.io.IOException; import org.dancres.blitz.entry.OpInfo; /** <p> Each separate operation of a Transaction identified by TxnId is a TxnOp which should implement this interface. TxnOp's are repeatable, disk-level actions which can be logged to disk and re-applied during system recovery. </p> */ public interface TxnOp extends Serializable { /** Must be invoked inside an active DiskTxn. */ public void restore(TxnState aState) throws IOException; public void commit(TxnState aState) throws IOException; public void abort(TxnState aState) throws IOException; }