International Business Machines Corporation

Kenneth R Blackman

Jack L Howe, Iii

Jack C Yuan

David A Cameron

Benjamin P Johnson

Shyh-Mei Fang Ho

Thomas Beavers Sander

A method and technique for link optimization for callout request messages includes monitoring one or more time-based parameters for each of a plurality of links between a communication pipe of a host system and one or more service systems. The links are used to send callout request messages between one or more applications running on the host system and the one or more service systems that process the callout request messages. The one or more time-based parameters are associated with different stages of callout request message processing by the communication pipe and the one or more service systems. The method also includes creating control data based on values of the one or more time-based parameters, creating the callout request messages to include the control data, and distributing the callout request messages to the one or more service systems via the links.

Link optimization for callout request messages

According to one aspect of the present disclosure, a method and technique for link optimization for callout request messages is disclosed. The method includes: monitoring a plurality of different time-based parameters for each of a plurality of links between a communication pipe of a host system and one or more service systems, the links used to send and receive callout request messages between one or more applications running on the host system and the services systems that process the callout request messages, the time-based parameters associated with different stages of callout request message processing by the communication pipe and the service systems; assessing a performance level of each of the plurality of links based on the time-based parameters; and dynamically distributing the callout request messages to select links of the plurality of links based on the performance assessment.

A method, apparatus, and article of manufacture for accessing a database. The database is modeled as an objects framework having zero or more business objects and one or more data objects. The data objects represent data in the database and the business objects represent logic for operating on the data objects.

Generic execution model for isolating applications from underlying databases

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.

Method for cataloging datastore characteristics and defining and generating datastore persistent objects

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 &ldquo;bridge&rdquo; 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.

Method for using a non-object-oriented datastore as a generic persistent datastore for persistent objects

A method, apparatus, and article of manufacture for accessing a hierarchical database. The database is modeled into an objects framework, wherein the objects framework corresponds to application views, data structures, and data defined and stored in the database. The database is then accessed through the objects framework. A class definition tool generates class definitions for objects that encapsulate or wrapper the data retrieved from the database.

Execution paradigm for accessing hierarchical data using an object framework

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 &ldquo;bridge&rdquo; 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.

Method for representing data from non-relational, non-object-oriented datastores as queryable datastore persistent objects

A method, apparatus, and article of manufacture for accessing non-object-oriented data using object-oriented techniques. 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 'collection of object collections' for modeling hierarchical structures, a datastore collection made up of one or more datastore persistent objects, and an instance manager. A datastore class definition tool generates class definitions for datastore persistent objects that encapsulate or wrapper the data retrieved from the non-object-oriented database management system.

Framework for object-oriented access to non-object-oriented datastores

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.

Method for the incremental presentation of non-object-oriented

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.

Method for managing queryable datastore persistent objects and queryable

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.

Method for capturing and cataloging datastore characteristics to define

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.

Method for using a non-object-oriented datastore as a generic persistent

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.

Growing community of inventors

San Jose, CA, United States of America

Kenneth R Blackman