text: # Copyright (C) 2010-2011 Richard Lincoln
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to
  # deal in the Software without restriction, including without limitation the
  # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  # sell copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  # IN THE SOFTWARE.
  
  from CIM14.CPSM.Equipment.Core.IdentifiedObject import IdentifiedObject
  
  class MeasurementValue(IdentifiedObject):
      """The current state for a measurement. A state value is an instance of a measurement from a specific source. Measurements can be associated with many state values, each representing a different source for the measurement.
      """
  
      def __init__(self, MeasurementValueSource=None, *args, **kw_args):
          """Initialises a new 'MeasurementValue' instance.
  
          @param MeasurementValueSource: A reference to the type of source that updates the MeasurementValue, e.g. SCADA, CCLink, manual, etc. User conventions for the names of sources are contained in the introduction to IEC 61970-301.
          """
          self._MeasurementValueSource = None
          self.MeasurementValueSource = MeasurementValueSource
  
          super(MeasurementValue, self).__init__(*args, **kw_args)
  
      _attrs = []
      _attr_types = {}
      _defaults = {}
      _enums = {}
      _refs = ["MeasurementValueSource"]
      _many_refs = []
  
      def getMeasurementValueSource(self):
          """A reference to the type of source that updates the MeasurementValue, e.g. SCADA, CCLink, manual, etc. User conventions for the names of sources are contained in the introduction to IEC 61970-301.
          """
          return self._MeasurementValueSource
  
      def setMeasurementValueSource(self, value):
          if self._MeasurementValueSource is not None:
              filtered = [x for x in self.MeasurementValueSource.MeasurementValues if x != self]
              self._MeasurementValueSource._MeasurementValues = filtered
  
          self._MeasurementValueSource = value
          if self._MeasurementValueSource is not None:
              if self not in self._MeasurementValueSource._MeasurementValues:
                  self._MeasurementValueSource._MeasurementValues.append(self)
  
      MeasurementValueSource = property(getMeasurementValueSource, setMeasurementValueSource)
  
  