JAbstractObjectStatus.hh

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#ifndef __JLANG__JABSTRACTOBJECTSTATUS__
#define __JLANG__JABSTRACTOBJECTSTATUS__
 
/**
 * \author mdejong
 */
 
namespace JLANG {}
namespace JPP { using namespace JLANG; }
 
namespace JLANG {
 
  /**
   * Interface for status of object.\n
   * This interface implements:
   *    - type conversion operator <tt>bool ()</tt>; and 
   *    - negate operator <tt>!</tt>.
   */
  struct JAbstractObjectStatus {
    /**
     * Get status of object.
     *
     * \return                status of this object
     */
    virtual bool getStatus() const = 0;
 
 
    /**
     * Type conversion operator.
     *
     * \return                status of this object
     */
    operator bool() const
    {
      return this->getStatus();
    }
 
 
    /**
     * Negated status of this object.
     *
     * \return                negated status of this object
     */
    bool operator!() const
    {
      return !(this->getStatus());
    }
  };
}
 
#endif