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Vaadin filtering table example
- 1. Vaadin Framework – Filtering Table Make Restaurant License info from Gov.HK web editable By Leonard Siu – Twitter: @lsiu
- 2. What are we building here? Server-Side Filterable, Sortable, Ed itable Table Dataset has 12453 Rows H2 Hong Kong Restaurant License Data courtesy of HK Database SAR Government
- 3. This is CodeAholics • Let’s go straight to coding! • Pre-requisites: – JDK 1.6+ – Maven 3+
- 4. Generate project from archetype mvn archetype:generate -DarchetypeGroupId=com.vaadin -DarchetypeArtifactId=vaadin-archetype-clean -DarchetypeVersion=LATEST -DgroupId=com.github.lsiu -DartifactId=vaadin-filtering-table-example -Dversion=1.0 -Dpackaging=war
- 5. Things to download • Get the restaurant license info from HK gov website: – http://www.gov.hk/en/theme/psi/datasets/restau rantlicences.htm • Place the file “LP_Restaurants_EN.XML” at the root of the project
- 6. Follow the project on Github • http://github.com/lsiu/vaadin-filtering-table- example • Go upto: – “Fix POM gwt:compile output compatible with eclipse servers” • Run in Command Prompt on project root: – mvn vaadin:update-widgetset gwt:compile
- 7. Code Walk Through http://github.com/lsiu/vaadin-filtering-table- example
- 8. Compile Widgetset • Vaadin is dependent of GWT • Whenever new add-on used with client-side code, widgetset needs to be recompiled • Compile widgetset takes a few minutes (about 5 to 10 minutes on my old i3 Laptop)
- 9. Prepare Project for Vaadin WidgetSet Addon/Development • Reference: – https://vaadin.com/book/- /page/addons.maven.html#addons.maven.widgetset 1. Configuring the POM – Add plugins 2. Creating a Widget Set Definition File – Create xxx.gwt.xml file 3. Enabling the Widget Set in the Application – Reference xxx.gwt.xml file in Vaadin Servlet in web.xml
- 10. WidgetSet strategy for large project • Create separate maven module for Vaadin widgetset • Only need to compile when client widgets are added • Add it to internal maven repository for large DEV teams
- 11. Now let’s look at FilteringTable Code Walk Through http://github.com/lsiu/vaadin-filtering-table- example
- 12. Vaadin Architecture I will add business logic here too Source: https://vaadin.com/book/-/page/architecture.html
- 13. Great Framework for quick business apps • RAPID development! – No client-server boilerplate code – Write validation code only once! • Look Nice out-of the box – Skinnable through CSS • Lot’s of nice widget out-of the box – Checkout Vaadin Sampler: – http://demo.vaadin.com/sampler
- 14. Nice Visual Editor • A little slow though…
- 15. Easy Form and Write Validation online Once • Default validation on Apply • Make validation immediate tf.setImmediate(true) Source: http://demo.vaadin.com/sampler#FormBasic
- 16. Very nice alert/message box Source: http://demo.vaadin.com/sampler#NotificationHumanized
- 17. Check Out Vaadin Sampler
- 18. Lots of Add-ons • Check out: https://vaadin.com/directory • E.g Invient Charts
- 19. Thank You! Slides will be on http://www.slideshare.net/leonardsiu Code on http://github.com/lsiu/vaadin-filtering-table- example Follow Me on Twitter: @lsiu http://about.me/leonardsiu