/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.webui.form.validator;
import java.io.Serializable;
import org.exoplatform.webui.form.UIFormInput;
/**
* Created by The eXo Platform SARL Author : Dang Van Minh minhdv81@yahoo.com Jun 7, 2006
*
* Validates whether a field is empty This class acts like a flag "mandatory". When you want to specify that a UIFormInput field
* is mandatory in your form, add it this validator. A '*' character will be automatically added during the rendering phase to
* specify the user
*/
public class MandatoryValidator extends AbstractValidator implements Serializable {
public void validate(UIFormInput uiInput) throws Exception {
String value = (String) uiInput.getValue();
if (value == null || value.trim().isEmpty()) {
throw createMessageException("EmptyFieldValidator.msg.empty-input", uiInput);
}
}
@Override
protected String getMessageLocalizationKey() {
return "EmptyFieldValidator.msg.empty-input";
}
@Override
protected boolean isValid(String value, UIFormInput uiInput) {
throw new UnsupportedOperationException("Unneeded by this implementation");
}
}