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AgroSense util swing - Swing specific utility classes

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/**
 * Copyright (C) 2008-2013 LimeTri. All rights reserved.
 *
 * AgroSense is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * There are special exceptions to the terms and conditions of the GPLv3 as it is applied to
 * this software, see the FLOSS License Exception
 * .
 *
 * AgroSense 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with AgroSense.  If not, see .
 */
package nl.cloudfarming.client.util.swing.beanbinding;

import org.jdesktop.beansbinding.Validator;
import org.openide.util.NbBundle;

/**
 * Validates if a Double is positive
 *
 * @author Merijn Zengers
 */
@NbBundle.Messages("PositiveDoubleValidator error message=Positive values only")
public class PositiveDoubleValidator extends Validator {
    
    /**
     * Checks if the passed in double is positive
     * @param t
     * @return {@link Result} if not positive else null
     */
    @Override
    public Validator.Result validate(Double t) {
        if (t < 0) {
            return new Validator.Result(null, Bundle.PositiveDoubleValidator_error_message());
        }
        return null;
    }
}