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Migration from vaadin 6 to vaadin 7   devoxx france 2013
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Migration from vaadin 6 to vaadin 7 devoxx france 2013

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Published

Henri Sara's presentation on migration from Vaadin 6 to 7 at Vaadin & GWT meetup in Paris

Henri Sara's presentation on migration from Vaadin 6 to 7 at Vaadin & GWT meetup in Paris

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Transcript

  • 1. Moving to Vaadin 7 Henri Sara Sr. Vaadin Expert
  • 2. Migrating fromVaadin 6 toVaadin 7
  • 3. Vaadin 7 in brief for migration First new major version since 2009, 1.5 years in development In addition to new features, reworking (and breaking) some old APIs Most APIs backwards compatible - some since 2002
  • 4. Major features in Vaadin 7 formigration New windowing API New FieldGroups and Converters for easier and more flexible forms New packaging (including GWT)
  • 5. ... and some more SASS based themes Simplified extending and widget development Much, much more - see https://vaadin.com/vaadin7
  • 6. Migration Guide https://vaadin.com/wiki/-/wiki/Main/Migrating+from+Vaadin+6+t o+Vaadin+
  • 7. Packaging
  • 8. Maven or Ivy to the rescue
  • 9. UI Instead of Application andWindowimport com.vaadin.Application;import com.vaadin.ui.*;public class V6Application extends Application{ @Override public void init() { Window mainWindow = new Window("V6"); Label label = new Label("Hello!"); mainWindow.addComponent(label); setMainWindow(mainWindow); setTheme(“mytheme”); } import com.vaadin.server.*;} import com.vaadin.ui.*; @Theme("mytheme") @PreserveOnRefresh public class V7UI extends UI { @Override protected void init(VaadinRequest request) { VerticalLayout view = new VerticalLayout(); view.addComponent(new Label("Hello!")); setContent(view); } }
  • 10. First steps Update dependencies public class V6Application extends UI replacing Application and Application Window public class V7UI extends UI @Theme("mytheme") Update theme styles.scss: import "../reindeer/legacy-styles.css"
  • 11. Converting an Eclipse project
  • 12. Converting a Maven project <dependencies> <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-server</artifactId> <version>${vaadin.version}</version> </dependency> <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-client-compiled</artifactId> <version>${vaadin.version}</version> </dependency> Dependencies <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-client</artifactId> <version>${vaadin.version}</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-themes</artifactId> <version>${vaadin.version}</version> </dependency> </dependencies> <build> <plugins> <plugin> Plug-in <groupId>com.vaadin</groupId> <artifactId>vaadin-maven-plugin</artifactId> <version>${vaadin.plugin.version}</version>
  • 13. FieldGroup and Converters -separate presentation
  • 14. Navigation and built-in multi-tab support@PreserveOnRefreshpublic class NavigationtestUI extends UI { @Override public void init(VaadinRequest request) { // Create Navigator, use the UI content layout to display the views Navigator navigator = new Navigator( this, this); // Add some Views // Could also use a ViewProvider navigator.addView(MainView.NAME, new MainView()); // no fragment // #count will be a new instance each time we navigate to it, counts: navigator.addView(CountView.NAME, CountView. class); // The Navigator attached to the UI will automatically navigate to the // initial fragment once the UI has been initialized. }} http://server/test#!count/params
  • 15. Theming with SASS SCSS compiled to CSS Variables, nesting, mix-ins, ... Composite themes, multiple themes on a page, theme by component etc.
  • 16. SASS example@import ".. // reindeer theme contents within/reindeer/reindeer.scss"; // .mytheme selector .mytheme .reindeerrules { ... }// Variables$margin: 16px; // Nesting .mytheme .a .b {// Mixins c: 16px;@mixin mytheme { } // Including a mixin @include reindeer; // Nesting .a { .b { } c: $margin; SASS} } Compiler.mytheme { @include mytheme;}
  • 17. Client side widgets Easier to develop Layouting and client-server communication rewritten - RPC, shared state, ... GWT included in Vaadin
  • 18. Add-ons and Widgetsets Inherit com.vaadin.DefaultWidgetSet Most/all add-ons need to be updated for Vaadin 7 Currently 135 Vaadin 7 compatible add-ons: http://vaadin.com/directory#:vaadin=7
  • 19. Extending servlets Both applications and add-ons can customize start-up page without servlet subclass @JavaScript on components to inject JavaScript UIProvider, VaadinServletSession, VaadinSession, VaadinService etc. reduce the need to subclass servlets
  • 20. For more information Whats new https://vaadin.com/vaadin7 Vaadin 7 tutorials https://vaadin.com/wiki/-/wiki/Main/Vaadin+7 Migration guide https://vaadin.com/wiki/- /wiki/Main/Migrating+from+Vaadin+6+to+Va adin+7
  • 21. Questions?