OSID - osid.topology.Graph Service Interface Definition

Interface	osid.topology.Graph
Implements	`osid.OsidCatalog`
Description	A `Graph` represents a collection of nodes and edges.
Method	getGraphRecord
Description	Gets the graph record corresponding to the given `Graph` record `Type.` This method is used to retrieve an object implementing the requested record. The `graphRecordType` may be the `Type` returned in `getRecordTypes()` or any of its parents in a `Type` hierarchy where `hasRecordType(graphRecordType)` is `true` .
Parameters	`osid.type.Type`	`graphRecordType`	the type of graph record to retrieve
Return	`osid.topology.records.GraphRecord`		the graph record
Errors	NULL_ARGUMENT		`graphRecordType` is `null`
	OPERATION_FAILED		unable to complete request
	UNSUPPORTED		`hasRecordType(graphRecordType)` is `false`
Compliance	`mandatory`		This method must be implemented.