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公开(公告)号：GB2354849A
公开(公告)日：2001-04-04
申请号：GB9922920
申请日：1999-09-29
Applicant: IBM
Inventor： TODD STEPHEN J , IBBOTSON JOHN BRYAN , STARKEY MICHAEL
Abstract: A tool 30 for graphically defining an expression, such as an SQL expression, comprises a graphical user interface (GUI) 31 with means, responsive to user input, for defining one or more tree structures comprising a hierarchical series of nodes, and one or more lists, each list item being associated with a respective node of an associated tree, and an expression generator 32 which analyses the graphical definition to generate an expression based on the structure of the tree and any list items associated with the tree. The tool may be used to configure a message broker or a database query. Two or more tree structures may be defined, where nodes are associated by a list item, and the expression generator joins the tree structures on these nodes. An input tree structure may have two or more associated lists, from which the generator generates a logical OR expression. The user may also define output tree structures.
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公开(公告)号：GB2354849B
公开(公告)日：2004-08-25
申请号：GB9922920
申请日：1999-09-29
Applicant: IBM
Inventor： TODD STEPHEN J , IBBOTSON JOHN BRYAN , STARKEY MICHAEL
Abstract: A tool (30) for graphically defining an expression is disclosed. The tool comprises a graphic user interface (GUI) component (31) and an expression generator component (32) adapted to read a graphic definition of an expression provided by a user through the GUI component. The GUI component is responsive to user input to define one or more tree structures comprising a hierarchical series of nodes, and one or more lists comprising a plurality of items, each list item being associated with respective node of an associated tree. The expression generator component analyzes the graphic definition and generates an expression based on the structure of the or each tree and any list items associated with respective nodes of a tree.
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公开(公告)号：GB2354848A
公开(公告)日：2001-04-04
申请号：GB9922818
申请日：1999-09-28
Applicant: IBM
Inventor： TODD STEPHEN J , AYRES MALCOLM D , LAMBROS PETER A , HOLLOWAY TIMOTHY , SCHMIDT MARC-THOMAS
Abstract: A message broker data processing method includes steps of: receiving 525 published messages on a topic from a publisher application 31; processing the received messages via a messageflow comprising at least one data processing node 521; distributing the processed messages to subscriber applications 33,34; receiving a subscription request from a subscriber application, the subscription request including an indication of a data processing node e.g. 526 which the subscriber application would like to add to the messageflow; and in response to the indication in the subscription request, adding the data processing node to the messageflow.
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公开(公告)号：CA1303223C
公开(公告)日：1992-06-09
申请号：CA593137
申请日：1989-03-08
Applicant: IBM
Inventor： TODD STEPHEN J
IPC: G06F15/20
Abstract: SOLID MODELLING An object definition generator generates a solid representation of an object for a solid modelling system in terms of the symmetric difference of construction solids based on respective surface areas of the object and defined with respect to a common datum in object space. The solid representation of a construction solid for a surface area can be formed in terms of the logical intersection of solid primitives based on the surface area itself and on one or more construction surfaces defined with respect to the boundary of the surface area and the common datum in space. The datum could be a point or a direction in object space. The invention allows for the automatic generation of a solid representation of an object, irrespective of complexity, from a surface representation of that object. It also enables the generation of a solid model from first principles by generating a surface representation and then producing a solid representation from the surface representation.
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