US 2012/0072439 A1 · QUERY AND RESULT REBINDING

Abstract

The metadata-based intermediation between two data sources. A computing system accesses a query message (e.g., a query or a query response). The query message is structured to be compatible with the first data source. The computing system uses metadata either directly, or indirectly through the execution of code referenced by the metadata to convert the query message into a semantically equivalent query message that is compatible with the second data source. If the query message were a query, then a query response may be acquired and the metadata may perhaps be used again to convert the query response into a form that is compatible with the first data source. In one embodiment, the conversion using the metadata is performed with the assistance of a framework, making changes to the conversion process as simple as perhaps just editing the metadata itself.

Claims20

Dependent claims

A method of a computing system to reformulate a query message to form a reformulated semantically similar query message using metadata, the method comprising:

an act of a computing system accessing a query message that is structured to be compatible with a first data source, the query message including a set of one or more fields including at least a first particular set of one or more fields;
an act of reformulating the query message so as to be structured to be compatible with a second data source, wherein the second data source does not have the first particular set of one of more fields, but does have a second particular set of one or more fields that contain similar information as the first particular set of one or more fields,
wherein the act of reformulating includes at least the following:
an act of accessing metadata that correlates the first particular set of one or more fields and the second particular set of one or more fields;
an act of using the accessed metadata and the values of the first particular set of one or more fields to populate a second particular set of one or more fields;
and
an act of including the populated second particular set of one or more fields in a reformulated form of the query message.

4 more elements

A computer program product comprising one or more computer storage media having thereon computer-executable instructions that are structured such that, when executed by one or more processors of a computing system, the computing system is caused to perform a method of reformulating a query message that is structured to be compatible with a first data source to form a reformulated semantically similar query message using metadata to be compatible with a second data source, the query message including a set of one or more fields including at least a first particular set of one or more fields, wherein the second data source does not have the first particular set of one of more fields, but does have a second particular set of one or more fields that contain similar information as the first particular set of one or more fields, the method comprising:

an act of accessing metadata that correlates the first particular set of one or more fields and the second particular set of one or more fields;
an act of using the accessed metadata and the values of the first particular set of one or more fields to populate a second particular set of one or more fields;
and
an act of including the populated second particular set of one or more fields in a reformulated form of the query message.

1 more element

Dependencies are inferred from the claim text.

Query and result rebinding

Life of this patent

Query and result rebinding

Life of this patent

Abstract

Claims20