Sets the collector methods that will be used for this schema.
        
        :param      collectors | [<orb.Collectors>, ..]

def setCollectors(self, collectors):
        """
        Sets the collector methods that will be used for this schema.
        
        :param      collectors | [<orb.Collectors>, ..]
        """
        self.__collectors = {}
        for name, collector in collectors.items():
            self.__collectors[name] = collector
            collector.setSchema(self)