/*******************************************************************************
 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
 * in Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
/*
 * Created on 6.10.2005
 * @author Toni Kalajainen 
 */
package org.simantics.utils.ui.validators;

import org.eclipse.jface.dialogs.IInputValidator;

public class EmptyValidator implements IInputValidator {

    public static EmptyValidator EMPTY_VALIDATOR = new EmptyValidator();
    
    public EmptyValidator() {
    }

    public String isValid(String newText) {
        if (newText==null || newText.equals("")) return null;
        return "Must be null";
    }

}