01: /*
02: * Beryl - A web platform based on XML, XSLT and Java
03: * This file is part of the Beryl XML GUI
04: *
05: * Copyright (C) 2004 Wenzel Jakob <wazlaf@tigris.org>
06: *
07: * This program 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 program 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 program; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-3107 USA
20: */
21:
22: package org.beryl.gui.validators;
23:
24: import org.beryl.gui.InternationalizationManager;
25: import org.beryl.gui.View;
26: import org.beryl.gui.widgets.PasswordField;
27: import org.beryl.gui.widgets.TextField;
28:
29: /**
30: * A validator which rejects an empty string
31: */
32: public class NotEmptyValidator implements Validator {
33: public void validate(View view) throws ValidationException {
34: String entry = "";
35: if (view instanceof TextField) {
36: entry = ((TextField) view).getText();
37: }
38: if (view instanceof PasswordField) {
39: entry = ((PasswordField) view).getText();
40: }
41: if ("".equals(entry))
42: throw new ValidationException(view,
43: InternationalizationManager
44: .getString("xmlgui.validator.empty"));
45: }
46: }
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