Presented by: Katie Milanowski. 2 Formed in 1982 Bruce Barrington (HBO & Company) Apply RAD...
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Transcript of Presented by: Katie Milanowski. 2 Formed in 1982 Bruce Barrington (HBO & Company) Apply RAD...
Presented by:Katie Milanowski
2
Formed in 1982 Bruce Barrington (HBO & Company) Apply RAD technology to IBM PC 1986: Clarion Version 1.0, Atlanta, GA 1988: Clarion Professional Developer
◦ Version 2.0◦ Included Designer
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1990◦ licensed compiler technology◦ State-of-the-art
1992: merger
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Founded May 2000 Acquired Clarion from TopSpeed Latest technology Stay ahead of technology curve
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Fourth generation language Data-centric Advanced RAD tool Includes:
◦ C++ compiler◦ Modula-2 compiler
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Code generation Reusable metadata Consistent coding standards
◦ Adopt styles quickly◦ Learn quickly
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Define application Predefined templates User-made templates
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Helps manage files/processes Includes:
◦ Source◦ Executables◦ Resources◦ Editing◦ Compiling◦ Linking
Highly configurable
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Basic Windows design Common commands Pick menu
◦ Recent files◦ Arranged by type◦ Open or remove from list
Project menu◦ Commands◦ Project only commands
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Information on:◦ How data is stored/accessed◦ How data is displayed/processed
Important step in development Organize data
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Information in central place Consistent look/feel Fields/relationships/validity defined once Default data handling
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File names and descriptions Field balloon help File key and index definitions Field status bar messages File relationship definitions Field validation rules Database connection information Field entry pictures and formatting Relational integrity rules Default screen and report controls for each field Field data types and descriptions
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Tool used for development Creates procedures Procedures accomplish tasks “Writes” source for application
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Used in application generation Two types
◦ Legacy◦ Application Builder Class (ABC)
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Mix template language and clarion language statements
Source generated by options specified At the end of the road Problems with Legacy templates
◦ Lacks readability◦ Doesn’t always make complete sense◦ No visual development tools
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Introduced in Clarion 4 Recreate Legacy templates Contain core functionality of application Rely on class library for source code
◦ Contain commonly used code◦ Generic code◦ Must know methods in library
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“ToDo” procedures◦ Main procedure◦ Other procedures
Select templates Define procedure Add variables
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Template Type Description
Browse Browse fields in a page-loaded list box
External An external procedure
Form View/edit a record from a file
Frame Multiple document main menu
Process Sequential record processor
Report Generic reporting procedure
Source Source procedure
Splash Splash window
Viewer View an ASCII (text) file
Window Generic window handler
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A description of the procedure The procedure prototype The module containing the generated source
code Whether to export the procedure Whether to declare the procedure globally Parameters passed to the procedure Return values from the procedure INI file settings used by the procedure Files accessed by the procedure
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The window displayed by the procedure, including the size, shape, appearance and functionality
The report generated by the procedure Data items (fields and variables) used by the
procedure Custom source code embedded within the
procedure Formulas used by the procedure Template generated extensions
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Code added to generated source Embed points
◦ Where code is inserted◦ Most standard events◦ Developer created points
Allows for full customization Saves embedded code for future
generations Must understand template source
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Source in popup menu in application tree◦ Opens Embeditor◦ Embedded code in surrounding generated code◦ Text editor
Choose Embeds◦ Only embedded code◦ Sorted alphabetic/logical◦ Find embeds◦ Tools to copy/move embeds
23 www.softvelocity.com
24 www.softvelocity.com
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Easy to use Helps generate appropriate source code Provides essential tools for development Direct manipulation of window/controls
26 www.softvelocity.com
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Reports built in Can use external reporting tools Visually develop Formatter helps create necessary code Report sub-structures
◦ Form◦ Header◦ Detail◦ Footer◦ Break
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GROUP('Ship to'),AT(3938,2375,3365,823),USE(?ShipTo),BOXED,TRN,#ORIG(?Group2)STRING(@s35),AT(4063,2604,2948,167),USE(GLOT:ShipName),#ORIG(GLOT:ShipName)STRING(@s45),AT(4063,2771,3125,167),USE(GLOT:ShipAddress),#ORIG(GLOT:ShipAddress)STRING(@s40),AT(4063,2927,3125,167),USE(GLOT:ShipCSZ),#ORIG(GLOT:ShipCSZ)ENDLINE,AT(83,3302,7229,0),USE(?Line2),COLOR(COLOR:Black),LINEWIDTH(2),#ORIG(?Line2)ENDdetail DETAIL,AT(,,,240),USE(?detail)STRING('Lines'),AT(21,21),USE(?ILines),TRN,#ORIG(?String43)STRING('Line'),AT(73,31),USE(?ILine),TRN,#ORIG(?String42)STRING(@n7),AT(5635,52,635,167),USE(DTL:QtyOrdered),RIGHT(100),#ORIG(DTL:QtyOrdered)STRING(@s10),AT(115,42,896,167),USE(PRO:ProductSKU),#ORIG(PRO:ProductSKU)STRING(@s35),AT(1083,52,2677,167),USE(PRO:Description),#ORIG(PRO:Description)STRING(@n$10.2B),AT(5500,10,135,52),USE(DTL:Discount),TRN,HIDE,#ORIG(DTL:Discount)CHECK,AT(3969,42,250,177),USE(DTL:BackOrdered),#ORIG(DTL:BackOrdered)STRING(@n$10.2),AT(4552,52,771,167),USE(PRO:Price),DECIMAL(250),#ORIG(PRO:Price)STRING(@N*10.2),AT(6396,52,865,167),USE(ExtendPrice),RIGHT,#ORIG(?String16)STRING(@n$10.2B),AT(5635,10,63,52),USE(DTL:TPd,,?DTL:TPd:2),TRN,HIDE,#ORIG(DTL:TPd)STRING(@n$14.2B),AT(5406,21,83,52),USE(DTL:TotalCost),TRN,HIDE,#ORIG(DTL:TotalCost)END
Code snippet from www.softvelocity.com
29 www.softvelocity.com
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Powerful development tool Require less storage Saves time Easy to use, easy to learn
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[1] Harms, D. (1999, March 08) ABC or Legacy: Which Templates Should You Choose? Clarion Magazine. Retrieved October 30, 2007, from http://www.clarionmag.com/cmag/v1/v1n1abcorlegacy.html
[2] SoftVelocity. (2003). Clarion 6. Retrieved October 9, 2007 from http://softvelocity.com/
[3] TopSpeed, (1998) Clarion 5: User’s Guide. Pompano
Beach, Fl: TopSpeed Corporation.
[4] TopSpeed Corporation. Why: A layman’s guide to the merits of Clarion for Windows. Retrieved October 30, 2007, from www.clariondeveloper.com/why.pdf