01: package net.sourceforge.squirrel_sql.client.session.mainpanel;
02:
03: /*
04: * Copyright (C) 2003 Colin Bell
05: * colbell@users.sourceforge.net
06: *
07: * This library is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU Lesser General Public
09: * License as published by the Free Software Foundation; either
10: * version 2.1 of the License, or (at your option) any later version.
11: *
12: * This library is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this library; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20: */
21: import java.util.ArrayList;
22: import java.util.Arrays;
23: import java.util.List;
24:
25: /**
26: * This class represents SQL history.
27: *
28: * @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
29: */
30: public class SQLHistory {
31: private List<SQLHistoryItem> _history = new ArrayList<SQLHistoryItem>();
32:
33: public SQLHistory() {
34: super ();
35: }
36:
37: public synchronized SQLHistoryItem[] getData() {
38: SQLHistoryItem[] data = new SQLHistoryItem[_history.size()];
39: return _history.toArray(data);
40: }
41:
42: public synchronized void setData(SQLHistoryItem[] data) {
43: _history.clear();
44: _history.addAll(Arrays.asList(data));
45: }
46:
47: public synchronized void add(SQLHistoryItem obj) {
48: if (obj == null) {
49: throw new IllegalArgumentException("SQLHistoryItem == null");
50: }
51:
52: // Make sure no duplicates are kept in history.
53: while (_history.remove(obj)) {
54: // Empty body.
55: }
56:
57: _history.add(obj);
58: }
59: }
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