01: /*
02: This file is part of the PolePosition database benchmark
03: http://www.polepos.org
04:
05: This program is free software; you can redistribute it and/or
06: modify it under the terms of the GNU General Public License
07: as published by the Free Software Foundation; either version 2
08: of the License, or (at your option) any later version.
09:
10: This program is distributed in the hope that it will be useful,
11: but WITHOUT ANY WARRANTY; without even the implied warranty of
12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13: GNU General Public License for more details.
14:
15: You should have received a copy of the GNU General Public
16: License along with this program; if not, write to the Free
17: Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18: MA 02111-1307, USA. */
19:
20: package org.polepos.teams.prevayler.melbourne;
21:
22: import java.util.*;
23:
24: import org.polepos.circuits.melbourne.*;
25: import org.polepos.data.*;
26: import org.polepos.teams.prevayler.*;
27:
28: public class MelbournePrevaylerDriver extends PrevaylerDriver implements
29: MelbourneDriver, Checksum {
30:
31: private final MelbourneSystem _melbourne = (MelbourneSystem) _prevayler
32: .prevalentSystem();
33:
34: public void write() {
35: int objectsToWrite = setup().getObjectCount();
36: int commitInterval = setup().getCommitInterval();
37:
38: while (objectsToWrite > 0) {
39: int objectsToWriteNow = objectsToWrite < commitInterval ? objectsToWrite
40: : commitInterval;
41: _prevayler.execute(new ObjectCreationTransaction(
42: objectsToWriteNow));
43: objectsToWrite -= commitInterval;
44: }
45: }
46:
47: public void read() {
48: Iterator pilots = _melbourne.pilots().iterator();
49: while (pilots.hasNext()) {
50: Pilot p = (Pilot) pilots.next();
51: }
52: }
53:
54: public void read_hot() {
55: read();
56: }
57:
58: public void delete() {
59: int objectsToDelete = setup().getObjectCount();
60: int commitInterval = setup().getCommitInterval();
61:
62: while (objectsToDelete > 0) {
63: int objectsToDeleteNow = objectsToDelete < commitInterval ? objectsToDelete
64: : commitInterval;
65: _prevayler.execute(new DeletionTransaction(
66: objectsToDeleteNow));
67: objectsToDelete -= commitInterval;
68: }
69: }
70:
71: protected Object prevalentSystem() {
72: return new MelbourneSystem(this );
73: }
74:
75: public void add(int i) {
76: addToCheckSum(i);
77: }
78:
79: }
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