Generation of a user interface code from a corresponding declarative language program

A method for automatically generating interface code in a procedural language code for an applications program having a business logic in a procedural language code, and a user interface defined in a declarative language, said user interface having variables and communications units to be processed in a predetermined order, said user interface providing an interface between a user and said applications program comprising the steps of:

• providing a code block file having a set of code blocks defining a basic code structure of said procedural language code;
• analyzing said user interface to establish information on said variables used in said user interface that correspond to said code blocks;
• analyzing said user interface to establish data flow information on said order in which said communications units in said user interface are processed and that correspond to said code blocks;
• extracting from said code block file fragments of said procedural language code corresponding to said information on said variables and said data flow information;
• and
• combining said information on said variables and said data flow information with said fragments extracted from said code block file to produce said interface code in said procedural language code.

A computer system for generating an interface code in a procedural language from a declarative language program that comprises:

• an applications program means comprising a business logic means for performing a predetermined task, and an interface declaration means having variables and communications units processed in a predetermined order,
• said interface declaration means coded as said declarative language program for providing a user interface between an end user and said applications program;
• and
• a code generator means for analyzing said applications program and generating said user interface code, said code generator means comprising:
• a code block file means having a set of code blocks for defining a basic code structure of said procedural language code;
• data analyzer means for analyzing said declarative language program to obtain information on said variables and said communications units;
• a first communications unit list means for defining said order said communications units in said declarative language program are processed;
• a second communications unit list means for defining said variables associated with said communications units;
• a variables list means, having a plurality of variable lists, for providing attribute information on said variables in said communications units;
• and
• means for combining code blocks from said code block file, entries from said first communications unit list means and said second communications unit list means, and said plurality of variable lists to produce said interface code.