RIA in Vaadin 7, running on Grails.

Vaadin

Vaadin is a web application framework for building Rich Internet Applications (RIA).
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Grails

Grails is a web application framework, which uses Groovy language, following the "coding by convention" paradigm.
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Grails plugin for Vaadin

Grails plugin called "vaadin" integrates Vaadin into Grails application. How to install latest the version grails install-plugin vaadin"
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Vaadin components

No JavaScript. Vaadin implements many components and makes possible to implement application in Java based language, which is Groovy in this case.
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GORM

No mapping between database and domain objects. GORM is Grails' object relational mapping implementation using Hibernate 3.
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Services

Services in Grails are the place to put the majority of the application logic. The way to access a service in Vaadin code. BookService service = Grails.get(BookService)
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Internationalization

Localization from Vaadin code using standard message bundle files. String localized = Grails.i18n("key.for.message")
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Environments

Per Environment Configuration if (Environment.current == Environment.TEST) {}
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Dependency injection

Dependency injection with the inbuilt Spring container.
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Command line

Command line scripting environment built on the Groovy-powered Gant. grails run-app
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Embedded Tomcat

Embedded Tomcat container which is configured for on the fly reloading.
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There is no need to have .gsp files, controllers or URL mapping in Grails-Vaadin project.

This tutorial describes way to start up Grails project integrated with Vaadin.

Download and install IntelliJ IDEA Ultimate Edition. It has got all what is needed for development of Grails and Vaadin applications. If the Eclipse IDE is the choice, go for Spring Tool Suite (STS) and install the needed plugins: Groovy and Grails.