Session AC23 IBM Rational Software Development Conference 2008 © 2007 IBM Corporation ® UML to EGL without writing code and deploy as Java or COBOL Reginaldo Barosa Executive IT Specialist, TechWorks Americas Brian Colbert. Certified IT Specialist, Rational for Systems Z

IBM Rational Software Development Conference 2008 Session Presentation Agenda  What is Rational Business Developer ?  Why Model-based Development?  What is UML  Enabling Business Oriented Developers  Model Driven EGL Development  Flow from Model to Code  Transformation Parameters Editor  Class Diagram Transformations

IBM Rational Software Development Conference 2008 Session Portals Batch Processes Text UI Web Rich UI Reports Web/Native Services What is Rational Business Developer?   WebSphere  USS  Linux  Batch  CICS  IMS System z  WebSphere  Native i5OS System i   WebSphere  Tomcat  Native Windows, Linux, Unix Architecture Skills

IBM Rational Software Development Conference 2008 Session Why Model-Based Development?  Modeling:  Facilitates collaboration between architects and developers  Provides simplified representation of a complex system  Allows engineers to focus on relevant details instead of extraneous implementation details  Facilitates communication of plans to those involved in construction phase  Is a traditional means to reduce engineering risk  Can greatly increase the pace of development!

IBM Rational Software Development Conference 2008 Session What is UML (Unified Modeling Language)  Unified Modeling Language  A standard graphical language and meta-model used to Specify, Visualize, Construct, and Document software-intensive systems  Created based on industry-wide experiences regarding modeling and building large and complex software systems  UML includes many diagram types, including:  Class diagrams to describe static structure of the system  What classes are in the system  How the classes are related  What are the class methods and attributes  Sequence, activity, state chart diagrams to describe dynamic system behavior  Class diagrams are often used as input for basic code generation  Generate initial source files with “standard” business logic in the functions

IBM Rational Software Development Conference 2008 Session Enabling Business Oriented Developers  So, Model Driven Development is:  Transforming models into code…  Then augmenting that code with business logic  Rational Business Developer Goals:  Allow modelers/architects and “Business Oriented Developers” to collaborate  Implement models on Enterprise Platforms, quickly and efficiently

IBM Rational Software Development Conference 2008 Session Model Driven EGL Development and Transformation * DDL = Data Definition Language, can create the DB Relational DB Java Application server JSF DDL* Generators Generate UML JSP RBD TPM Editor Workstation EGL optional CRUD and LIST COBOL

IBM Rational Software Development Conference 2008 Session Flow from model to code 1. Create UML Model (using RSA) 2. Add/Edit Transform Parameters (using RBD) 3. Generate EGL Code

IBM Rational Software Development Conference 2008 Session Transformation Parameter Editor  Allows users to:  Enables code gen customization  Transform one or more UML elements to EGL  Parameters are available at the level of:  Model  Class  Attribute  Datatype  Examples:  Generate EGL services or EGL Libraries  Generate DDL  UI choices (labels, items in list..)  Data naming, data mapping choices Uncheck this to generate EGL services Choose to generate Web pages, data access functions, and/or data definitions Use this to run the transformations Select the data base

IBM Rational Software Development Conference 2008 Session Class-Level Parameters Override defaults that are based on model values

IBM Rational Software Development Conference 2008 Session Attribute-Level Parameters

IBM Rational Software Development Conference 2008 Session Primitive type elements

IBM Rational Software Development Conference 2008 Session “Run Transformation” Sheet Can select all model elements for transforming, or some JSP optional EGL DDL*

IBM Rational Software Development Conference 2008 Session Optionally - User Interface Transformation  Produces the JSPs and Page handlers required to drive the CRUD operations  Incorporates the associations between classes by providing navigation  JSF pages have contextual buttons and links based on associations  Detail pages will have buttons that will allow the user to update/modify information  Custom templates and CSS can be applied to any of the default pages that are created  Flexibility to specify read only fields (non-modifiable) in pages

IBM Rational Software Development Conference 2008 Session Class Diagram Transformations… Data Definition Transformation dataitem Name CHAR(30) end dataitem Address CHAR(50) end dataitem Phone CHAR(14) end dataitem _Money MONEY(10, 2) end dataitem Integer INT end record Student type sqlRecord {tablenames=[["Student"]], keyItems=[studentId] } studentId Integer {column="Student.studentID"}; name Name {column="Student.name"}; address Address {column="Student.address"}; phoneNumber Phone {column="Student.phoneNumber"}; seminar_seminarId Integer {column="Student.seminar_seminarID"}; end record Seminar type sqlRecord { tablenames=[["Seminar"]], keyItems=[seminarId]} seminarId Integer {column="Seminar.seminarID"}; name Name {column="Seminar.name"}; seminarFees _Money {column="Seminar.seminarFees"}; end

IBM Rational Software Development Conference 2008 Session Class Diagram Transformations… Data Access Transformation (Student example for CRUD application) EGL Generated Data Access Functions Function UpdateStudent(updateRecord Student, status StatusRec) try if ( IsValid(updateRecord) ) replace updateRecord noCursor; HandleSuccess(status); end onException (exception SQLException) HandleException(status, exception); end end Update Read Function AddStudent(newRecord Student, status StatusRec) if ( IsValid(newRecord) ) try add newRecord; HandleSuccess(status); onException (exception SQLException) HandleException(status, exception); end else HandleInvalidDBRecord(status); end end Function GetStudent(searchRecord Student inout, status StatusRec) try get searchRecord; if (SysVar.sqlData.sqlCode == 100) HandleDBRecordNotFound(status, "Student"); else HandleSuccess(status); end SysLib.commit(); onException (exception SQLException) HandleException(status, exception); end end Function DeleteStudent(deletionRecord Student, status StatusRec) try delete deletionRecord noCursor; HandleSuccess(status); onException (exception SQLException) HandleException(status, exception); end end Create Delete

IBM Rational Software Development Conference 2008 Session Class Diagram Transformations… Data Access Transformation (Student example for CRUD application) Function GetStudentListAll(studentArray Student[] out, status StatusRec) try get studentArray; if (studentArray.getSize() == 0) HandleDBRecordNotFound(status, "Student"); else HandleSuccess(status); end onException (exception SQLException) HandleException(status, exception); end List EGL Generated Data Access Functions

IBM Rational Software Development Conference 2008 Session Session summary – We discussed..  Why Model-based Development  What is UML  Enabling Business Oriented Developers  Model Driven EGL Development  Flow from Model to Code  Transformation Parameters Editor  Class Diagram Transformations

IBM Rational Software Development Conference 2008 Session DEMO

IBM Rational Software Development Conference 2008 Session QUESTIONS

IBM Rational Software Development Conference 2008 Session Session summary – We discussed..  Why Model-based Development  What is UML  Enabling Business Oriented Developers  Model Driven EGL Development  Flow from Model to Code  Transformation Parameters Editor  Class Diagram Transformations

IBM Rational Software Development Conference 2008 Session Discovering the value of Rational Business Developer Proof of Technology POT Link Duration : 2 days

IBM Rational Software Development Conference 2008 Session EGL Café – Accelerates EGL Momentum

IBM Rational Software Development Conference 2008 Session New EGL Book !

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IBM Rational Software Development Conference 2008 Session BACKUP

IBM Rational Software Development Conference 2008 Session UML to EGL Type Mapping UML TypeEGL Equivalent Package Class EGL SQL Record Operation Stub Functions Attribute/Property EGL Data Item Association Key Item Within the EGL SQL Record