01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License version 2
11: * as published by the Free Software Foundation.
12: *
13: * Resin Open Source is distributed in the hope that it will be useful,
14: * but WITHOUT ANY WARRANTY; without even the implied warranty of
15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
16: * of NON-INFRINGEMENT. See the GNU General Public License for more
17: * details.
18: *
19: * You should have received a copy of the GNU General Public License
20: * along with Resin Open Source; if not, write to the
21: *
22: * Free Software Foundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package javax.faces.model;
30:
31: import javax.servlet.jsp.jstl.sql.Result;
32:
33: public class ResultDataModel extends DataModel {
34: private Result _value;
35: private int _rowIndex = -1;
36:
37: public ResultDataModel() {
38: }
39:
40: public ResultDataModel(Result value) {
41: _value = value;
42: setRowIndex(0);
43: }
44:
45: public int getRowCount() {
46: if (_value != null)
47: return _value.getRowCount();
48: else
49: return -1;
50: }
51:
52: public Object getRowData() {
53: if (_value == null)
54: return null;
55: else if (getRowIndex() < _value.getRowCount())
56: return _value.getRows()[getRowIndex()];
57: else
58: throw new IllegalArgumentException();
59: }
60:
61: public boolean isRowAvailable() {
62: return _value != null && getRowIndex() < _value.getRowCount();
63: }
64:
65: public Object getWrappedData() {
66: return _value;
67: }
68:
69: public void setWrappedData(Object data) {
70: _value = (Result) data;
71: setRowIndex(0);
72: }
73:
74: public int getRowIndex() {
75: return _rowIndex;
76: }
77:
78: public void setRowIndex(int index) {
79: if (_value != null && index < -1)
80: throw new IllegalArgumentException("rowIndex '" + index
81: + "' cannot be less than -1.");
82:
83: DataModelListener[] listeners = getDataModelListeners();
84:
85: if (listeners.length > 0 && _value != null
86: && _rowIndex != index) {
87: DataModelEvent event = new DataModelEvent(this , index,
88: _value);
89:
90: for (int i = 0; i < listeners.length; i++) {
91: listeners[i].rowSelected(event);
92: }
93: }
94:
95: _rowIndex = index;
96: }
97: }
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