# Copyright INRA (Institut National de la Recherche Agronomique)
# http://www.inra.fr
# http://urgi.versailles.inra.fr
#
# This software is governed by the CeCILL license under French law and
# abiding by the rules of distribution of free software.  You can  use, 
# modify and/ or redistribute the software under the terms of the CeCILL
# license as circulated by CEA, CNRS and INRIA at the following URL
# "http://www.cecill.info". 
#
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## Interface for a checker
#
# This class emulates an interface for a checker.
#
# All checkers are subclasses of IChecker. 
#
class IChecker( object ):
    
    ## perform check, raise a CheckerException if error occurred
    #
    # @param arg a collecting parameter: put here all you need to perform check
    # 
    def check(self, arg=""):
        pass