REST FOR ENTITIES

• US 20080201338A1
• Filed: 02/16/2007
• Published: 08/21/2008
• Est. Priority Date: 02/16/2007
• Status: Abandoned Application

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Castro, Pablo, Barnett, Alex Anthony, Mallalieu, Timothy Ian
• Application Number:
  US11/675,944
• Publication Number:
  US 20080201338A1
• Time in Patent Office: Days
• US Class Current: 707/100
• CPC Class Codes: G06F 16/252 between a Database Management System and a front-end application
• CPC Class Codes: G06F 16/288 Entity relationship models

Abstract

The claimed subject matter provides a representational state transfer (REST) interface over a data store characterized by an entity data model (EDM) architecture. Such characterization can be presented by way of an Entity Framework that can transform data characterized in one manner at a relational database into an EDM characterization that can further be exposed to an external process or device. A REST interface over EDM stores can provide an end-to-end framework to expose data, modeled in a highly-expressive fashion, to the Internet or a web-scale intranet.

Claims

1. A system that facilitates access to an entity data model (EDM) store, comprising:

an entity data model (EDM) store; and

a stateless, uniform interface that transports requests and results related to the EDM store.

2. The system of claim 1, the EDM store is described by an EDM schema mapped to one or more logical, or physical, or both, storage components.

3. The system of claim 1, the requests and results related to the EDM store further comprise at least one of identification, access, update, or retrieval interaction, or combinations thereof, with the EDM store to expose information related to or contained within, or both, the EDM store.

4. The system of claim 2, the EDM schema further comprises a formalization of at least one of an Entity type, an Entity instance, or an Entity set, or a Relationship type, Relationship instance, or a Relationship set, or an Action type, an Action instance, or an Action set, or combinations thereof.

5. The system of claim 4, the EDM schema further comprises a formalization of at least one of a Relationship type, a Relationship instance, or a Relationship set, or combinations thereof, to provide a real-world context for the at least one of an Entity type, an Entity instance or an Entity set or combinations thereof.

6. The system of claim 1, the stateless, uniform interface is a representational state transfer (REST) interface.

7. The system of claim 1, the identification, access, update, or retrieval interaction further comprises a uniform resource indicator (URI) in accord with the EDM schema.

8. The system of claim 1, further comprising at least one EDM entity representational format exposed through the stateless, uniform interface that preserves semantics of EDM constructs.

9. The system of claim 8, semantics of EDM constructs include relationships and inheritance.

10. A method for providing information relating to an EDM store, comprising:

explicitly defining a resource store characterized by at least one EDM item; and

mapping at least one EDM item to a stateless, uniform interface for transporting requests and results relating to the resource store.

11. The method of claim 10, the EDM item further comprising an EDM entity, an EDM relationship, or a combination of an EDM entity and an EDM relationship.

12. The method of claim 10, further comprising querying the resource store through the uniform, stateless interface.

13. The method of claim 10, further comprising receiving a result of a query in an EDM entity representation format.

14. The method of claim 13, further comprising relating the EDM entity to at least one additional EDM entity by way of the EDM relationship.

15. The method of claim 14, further comprising preserving at least an association, or an inheritance, or both, of the EDM entity related to the at least one additional EDM entity, by way of the EDM relationship, via the one or more EDM representation formats.

16. The method of claim 13, the EDM entity representational format is one of plain old XML (POX), resource description framework (RDF), rich site summary (RSS), or java script object notation (JSON), or combinations thereof.

17. A system that provides access to an EDM store through a stateless, uniform interface comprising:

means for characterizing data that maps an EDM schema to a data store; and

means for mapping an interface to a data store that overlays the EDM schema with a stateless, uniform URI interface.

18. The system of claim 17, the stateless, uniform URI interface is a REST URI interface.

19. The system of claim 17, further comprising a querying means that queries the data store in accordance with the EDM schema.

20. The system of claim 19, further comprising a representation means that responds to a query from the querying means with data specified in an EDM data representation format.