1. Component Development for the Component Description Framework (CDF) Training Dr.-Ing. Ulrich Dinger

2. Bildung ist die Fähigkeit, fast alles anhören zu können, ohne die Ruhe zu verlieren oder das Selbstvertrauen. Robert Frost

3. Overview General concepts and terms The aloXerv MOT-language The Ecore modeling language The Component Description Framework and the CDF-Editor Tutorial

4. General concepts and terms Model-Driven Software-Development key concepts Provide optimal level of abstraction for each role in the (development) process Separation of concerns (e.g. separate app-logic from ui) Avoid storing redundant information (use single source of information) Interprete the information during runtime Use Code-generators to create code-artifacts in concrete languages (e.g. Java) => Provide custom languages and tools

5. Meta-Meta-Model (Bsp: Ecore) Meta-Grammar (E)BNF Meta-Model / Data Model / Schema / … Grammar Model (Instance) Valid sentence of grammar Domain specific lanuages (DSL) Textual and graphical presentation Model-Driven Software-Development (MDSD) Concepts of the language independent of presentation (= abstract syntax) General concepts and terms Example Instance of ANTLR Java Programming Language Java-Class (e.g. FireDetector.java) FireDetector1 (object)

6. Documentation Programming Interface (API) PersistencyPresentation UML-Class-Diagrams WIKI HTML/Web (MOT- Concept) Dokumente (Word/Open Office...)... C++ Java (=MOT-API)... XML Binary format Database... Web (Thin-Client) MOT-Editor (Fat- Cl.)... The MOT-Language/MOT-API = A sample Meta-Model Meta-Model (MOT-Language) Model (*.mot) Generate (>90%) Instance of read/write use Model (*.mot) Model (*.mot) manipulate

7. Documentation Programming Interface (API) PersistencyPresentation UML-Class-Diagrams WIKI HTML/Web (MOT- Doku) Dokumente (Word/Open Office...)... C++ Java (=MODTO...)... XML Binary format Database... Web (Thin-Client) aloXerv-Client (Fat~)... The MOTs as central source of information *.mot Managed Objects Generate (>90%) Instance of read/write use Managed Objects manipulate Interprete (via MOT-API)

8. The Ecore modeling language (class hierarchie)

9. A simple data model (Ecore meta-model) <author name="Robert Frost"/> … <cite shortText="Bildung" text="Bildung ist die Fähigkeit, fast alles anhören zu können, ohne die Ruhe zu verlieren oder das Selbstvertrauen" author="Robert Frost"/> Sample-Model/Instance (XML)

10. The development-process with FXL Editor and FXL Generator Edit/extend the meta-model (*.ecore) Use code-generator for *-API/Editor Hand-code additional functionality in *-API; Customize Editor Build/release the editor

11. The Component Description Framework and the CDF Editor

12. The Component Description Framework and the CDF-Editor Framework for Application and Tool development based on MDSD Component = Module = Project = Artifact For each Component you can define as many Meta-Models as you want Basis = Based on FXL: Ecore-(meta-)modeling, code-generation, mighty Editor- Framework Integration of an Ecore-editor and the code-generators into one tool Run API/editors as Eclipse-Editors and in the CDF Standalone-Editor

13. The Component Description Framework and the CDF-Editor (2) Existing open source CDF-extensions: History (Release-Notes)/svn, Files (e.g. for viewing PNB), Reviews, I18n, Decisions, Eclipse-Help, Authentication, Tasks, Actions, (Joke of the day), … AloXerv-specific extensions (closed source) Domain-Configuration, Data-Channels, Security-Config, SDC-Sample, Cu- Handler-Config,... CDF-Standalone Can be used by none-developers (in contrast to Eclipse IDE) No usage of Eclipse-File-System no need to perform refresh workspace after svn-update Very flexible/customizeable (which extensions to show) – Use as demo-system to manage aloXerv-site-installation – Use as application to manage aloXerv help – … Can be used to get overview ==> tables

14. The CDF-Editor (details/architecture)

15. How to create an extension of the CDF-Editor without writing one line of Java-code http://www.ulrich-dinger.de/cdf/cde.html CDF Development Tutorial Ulrich Dinger

16. Ecore meta-model <author name="Robert Frost"/> … <cite shortText="Bildung" text="Bildung ist die Fähigkeit, fast alles anhören zu können, ohne die Ruhe zu verlieren oder das Selbstvertrauen" author="Robert Frost"/> Sample-Model/Instance (XML)

17. Optional: Extend meta-model to allow users to vote for cites with POOR … GOOD … EXCELLENT (enumeration) Show cites in a table …

18. Extended Ecore meta-model <cites xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <author name="Robert Frost"/> <cite shortText="Bildung" text="Bildung ist die Fähigkeit, fast alles anhören zu können, ohne die Ruhe zu verlieren oder das Selbstvertrauen" author="Robert Frost"> <vote user="schnullerich" rating="GOOD"/> <user userName="schnullerich" firstName="Ulrich" lastName="Dinger"/> Extended sample-Model/Instance (XML)

19. Extended Ecore meta-model

20. <cite text=Ich habe eiserne Prinzipien. Wenn sie Ihnen nicht gefallen, habe ich auch noch andere. author=Groucho Marx/>