Jack L Howe

US Patent:

62196731, Apr 17, 2001

Filed:

May 7, 1998

Appl. No.:

9/074247

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707103

Abstract:

A method, apparatus, and article of manufacture for using a non-object-oriented datastore as a generic persistent datastore for persistent objects. A computerized system in accordance with the principles of the present invention provides a "bridge" that interfaces between an application program and a non-object-oriented database management system to provide persistent storage for objects manipulated by the application program. The invention further provides a class definition tool for defining a generic database description associated with the non-object-oriented datastore, for defining a specification for the non-object-oriented datastore using the generic database description, for defining a specification for a generic datastore persistent object class using the specification of the non-object-oriented datastore, and for generating generic schema mapper class definition and method source code using the generic datastore persistent object class specification, wherein the generic schema mapper class definition and method source code has methods for interfacing the application program and the non-object-oriented datastore.

US Patent:

57783586, Jul 7, 1998

Filed:

Oct 25, 1996

Appl. No.:

8/738082

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707 3

Abstract:

A method, apparatus, and article of manufacture for querying a non-relational, non-object-oriented datastore using objected-oriented techniques. A computerized system in accordance with the principles of the present invention includes a "bridge" for receiving a query request to retrieve data from the external datastore, for parsing the query request according to a specified syntax, and for storing the parsed query request in a query object, wherein the query object is later accessed to direct the retrieval of data from the external datastore.

US Patent:

57651620, Jun 9, 1998

Filed:

Oct 25, 1996

Appl. No.:

8/736952

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707103

Abstract:

A method, apparatus, and article of manufacture for managing datastore persistent objects and datastore collections in an object-oriented environment. A computerized system in accordance with the principles of the present invention creates datastore persistent objects that encapsulate logical units of data retrieved an external non-object-oriented datastore, creates schema mappers associated with the datastore persistent objects that translate common elements between the data retrieved from the datastore and the datastore persistent objects, creates datastore collections for organizing the datastore persistent objects, and tracks the datastore collections, schema mappers and datastore persistent objects using an instance manager.

US Patent:

62231847, Apr 24, 2001

Filed:

Mar 25, 1998

Appl. No.:

9/047786

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707103

Abstract:

A method, apparatus, and article of manufacture for cataloging datastore characteristics and defining and generating datastore persistent objects. A computerized system includes an external non-object-oriented datastore and a class definition tool that defines a specification for the external non-object-oriented datastore, defines a specification for a datastore persistent object class using the specification for the external non-object-oriented datastore, and defines a specification for an application program that interacts with the datastore persistent object class. The class definition tool stores the datastore specification, the datastore persistent object class specification, and the application program specification in a catalog. The class definition tool further uses the datastore specification and the datastore persistent object class specification to generate datastore persistent object class and schema mapper class definition and method source code, and uses the application program specification to generate subschema mapper class definition and method source code.

US Patent:

57942471, Aug 11, 1998

Filed:

Oct 25, 1996

Appl. No.:

8/736759

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707103

Abstract:

A method, apparatus, and article of manufacture for representing data from non-object-oriented external datastores as queryable datastore persistent objects. A computerized system in accordance with the principles of the present invention includes a "bridge" for locating a logical unit of data in a non-object-oriented datastore, for retrieving the data from the datastore, and for mapping the data retrieved from the datastore into a datastore persistent object so that the data is encapsulated within the datastore persistent object.

US Patent:

58095080, Sep 15, 1998

Filed:

Oct 25, 1996

Appl. No.:

8/736922

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707103

Abstract:

A method, apparatus, and article of manufacture for cataloging datastore characteristics. A computerized system in accordance with the principles of the present invention includes an external non-object-oriented datastore and a class definition tool that captures a database description associated with the datastore, captures a record layout associated with the datastore, associates the database description with the record layout to define a specification for the datastore, and augments the datastore specification to constrain use of the datastore by datastore persistent objects. The class definition tool stores the datastore specification in a catalog.

US Patent:

60789271, Jun 20, 2000

Filed:

May 6, 1998

Appl. No.:

9/074929

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines - Armonk NY

International Classification:

G06F 1730

US Classification:

707103

Abstract:

A method, apparatus and article of manufacture for the incremental presentation of data from non-object-oriented datastores as datastore persistent objects. A computerized system in accordance with the principles of the present invention includes a "bridge" that interfaces between an application program and a non-object-oriented database management system to materialize data retrieved from the non-object-oriented database management system as objects that can be manipulated by the application program. The bridge includes a datastore collection comprised of a specified number of datastore persistent objects. The datastore collection manages the datastore persistent objects such that they are added and deleted from the datastore collection.

US Patent:

57651612, Jun 9, 1998

Filed:

Oct 25, 1996

Appl. No.:

8/736764

Inventors:

Kenneth R. Blackman - San Jose CA
Jack L. Howe - Gilroy CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1730

US Classification:

707103

Abstract:

A method, apparatus, and article of manufacture for encapsulating data from non-object-oriented datastores as datastore persistent objects. A computerized system in accordance with the principles of the present invention includes a "bridge" for retrieving a logical unit of data from the external non-object-oriented datastore, for mapping the logical unit of data retrieved from the external datastore into a datastore persistent object, and for manipulating the mapped logical unit of data within the datastore persistent object using methods associated with the object.