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<?php

/* --------------------------------------------------------------
   DecimalType.inc.php 2015-11-04 gm
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2015 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

/**
 * Class DecimalType
 *
 * Shared decimal type class. Use the "asDecimal" method for getting the plain value.
 *
 * @category   System
 * @package    Shared
 * @subpackage Types
 */
class DecimalType
{
    /**
     * Instance Value
     *
     * @var float
     */
    protected $value;
    
    
    /**
     * Class Constructor
     *
     * @throws InvalidArgumentException
     *
     * @param float $p_value
     */
    public function __construct($p_value)
    {
        if(!is_numeric($p_value) || (float)$p_value != $p_value)
        {
            throw new InvalidArgumentException('DecimalType: Invalid argument value given (expected float numeric got '
                                               . gettype($p_value) . '): ' . $p_value);
        }
        
        $this->value = (float)$p_value;
    }
    
    
    /**
     * Get the instance value as decimal.
     *
     * @return float
     */
    public function asDecimal()
    {
        return $this->value;
    }
}