Patterns for modeling computer component interactions
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United States of America Patent
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Nov 19, 2002
Grant Date -
N/A
app pub date -
Sep 10, 1999
filing date -
Sep 24, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computer system and method including commands to permit interaction between a client and a component in a backend system. The command has an input object, for transformation by the backend system, and defines one or more output objects, representing the input object after transformation by the backend system. The command includes a connection specification, for identification of the backend system with which the client is to interact, and an interaction specification, for identification of the component in the backend system with which the client is to interact. The command also includes a communication object, for carrying out a connection between the client and the component of the backend system. The input object is supplied to the component of the backend system in accordance with the interaction specification and the connection specification. The command is driven by an execute method and the command signals a successfully or an unsuccessful event depending on exceptions being encountered by the component of the backend system in processing the input object. Navigators are built for constructing an interaction flow. Navigators contain chained commands and other navigators.
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