01: /*
02: * This file is part of the Echo Web Application Framework (hereinafter "Echo").
03: * Copyright (C) 2002-2005 NextApp, Inc.
04: *
05: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
06: *
07: * The contents of this file are subject to the Mozilla Public License Version
08: * 1.1 (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: * http://www.mozilla.org/MPL/
11: *
12: * Software distributed under the License is distributed on an "AS IS" basis,
13: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14: * for the specific language governing rights and limitations under the
15: * License.
16: *
17: * Alternatively, the contents of this file may be used under the terms of
18: * either the GNU General Public License Version 2 or later (the "GPL"), or
19: * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20: * in which case the provisions of the GPL or the LGPL are applicable instead
21: * of those above. If you wish to allow use of your version of this file only
22: * under the terms of either the GPL or the LGPL, and not to allow others to
23: * use your version of this file under the terms of the MPL, indicate your
24: * decision by deleting the provisions above and replace them with the notice
25: * and other provisions required by the GPL or the LGPL. If you do not delete
26: * the provisions above, a recipient may use your version of this file under
27: * the terms of any one of the MPL, the GPL or the LGPL.
28: */
29:
30: package nextapp.echo2.app.table;
31:
32: import java.io.Serializable;
33:
34: import nextapp.echo2.app.event.TableModelListener;
35:
36: /**
37: * A model which represents data in a table format.
38: */
39: public interface TableModel extends Serializable {
40:
41: /**
42: * Adds a listener that will be notified of changes/
43: *
44: * @param l the listener to add
45: */
46: public void addTableModelListener(TableModelListener l);
47:
48: /**
49: * Returns the most-specific class of objects found in a given table
50: * column. Every object in the specified column must be an instance
51: * of the returned class.
52: *
53: * @param column the column index (0-based)
54: * @return the most-specific class of object found in the specified
55: * column
56: */
57: public Class getColumnClass(int column);
58:
59: /**
60: * Returns the number of columns in the table.
61: *
62: * @return the column count
63: */
64: public int getColumnCount();
65:
66: /**
67: * Returns the name of the specified column number.
68: *
69: * @param column the column index (0-based)
70: * @return the column name
71: */
72: public String getColumnName(int column);
73:
74: /**
75: * Returns the number of rows in the table.
76: *
77: * @return the row count
78: */
79: public int getRowCount();
80:
81: /**
82: * Returns the value found at the given coordinate within the table.
83: * Column and row values are 0-based.
84: * <strong>WARNING: Take note that the column is the first parameter
85: * passed to this method, and the row is the second parameter.</strong>
86: *
87: * @param column the column index (0-based)
88: * @param row the row index (0-based)
89: */
90: public Object getValueAt(int column, int row);
91:
92: /**
93: * Removes a listener from being notified of changes.
94: *
95: * @param l the listener to remove
96: */
97: public void removeTableModelListener(TableModelListener l);
98: }
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