US 2012/0072449 A1Published application

Object instance versioning

AssigneeMicrosoft Corporation

InventorsRaymond R. Patch, Daniel K. Lin, Rajeev S. Chauhan

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Abstract

A first version of object data for an object instance can be stored in an object persistence store, which can be a distributed store. After the first version of the object data is stored, a second version of the object data can be stored in the store, without deleting the first version of the object data. Object data versioning information that identifies the first version of the object data and the second version of the object data can be stored separately from method versioning information for the object instance. After the second version of the object data is stored, a request to retrieve the first version of the object instance can be received, and in response, the first version of the object data can be retrieved from the store. Multiple versions of the object instance data can also be searched.

Claims20

Dependent claims

A computer-implemented method, comprising:

receiving a request to store a first version of an object instance in an object persistence store;
in response to the request to store the first version of the object instance, storing a first version of object data for an object instance in the object persistence store;
after the first version of the object data is stored, receiving a request to store a second version of the object instance in the object persistence store;
in response to the request to store the second version of the object instance, storing the second version of the object data in the store without deleting the first version of the object data;
storing object data versioning information that identifies the first version of the object data and the second version of the object data separately from method versioning information for the object instance;
after the second version of the object data is stored, receiving a request to retrieve the first version of the object instance;
and
in response to the request to retrieve the first version of the object instance, retrieving the first version of the object data from the store.

5 more elements

Dependencies are inferred from the claim text.