OSID - osid.metering.Reading Service Interface Definition

Interface	osid.metering.Reading
Implements	`osid.OsidCapsule`
Used By	`osid.metering.MeterReadingSession`
Used By	`osid.metering.ReadingList`
Description	A `Reading` represents data from a `Meter` for a referenced metered object at the current point in time.
Method	getMeterId
Description	Gets the `Id` of the `Meter` associated with this reading.
Return	`osid.id.Id`	gets the `Id` of the `Meter`
Compliance	`mandatory`	This method must be implemented.
Method	getMeter
Description	Gets the `Meter` associated with this reading.
Return	`osid.metering.Meter`	gets the `Meter`
Errors	OPERATION_FAILED	unable to complete request
Compliance	`mandatory`	This method must be implemented.
Method	getMeteredObjectId
Description	Gets the metered object associated with this reading.
Return	`osid.id.Id`	gets the metered object `Id`
Compliance	`mandatory`	This method must be implemented.
Method	getAmount
Description	Gets the amount of this reading.
Return	`decimal`	gets the amount of this reading
Compliance	`mandatory`	This method must be implemented.