Grails Basic


  • Web Framework inspired by RoR(Ruby On Rails)
  • Latest version is 1.1.1.
  • Based on open source technologies like Spring, Hibernate and SiteMesh
    Grails = Spring MVC 2.5.1 + Hibernate 3 + SiteMesh2.3
  • Newbie's are unaware that Grails is full and full Spring!
  • Provides several commands to auto generate common requirements in a web app.
  • Comes bundled with HSQLDB and Jetty web Server
  • Focus is on rapid development and simplicity
  • Coding by convention paradigm
  • Reduce the need for configuration files and other boilerplate code
  • File names are important





Features
  • Rapid web application development
  • Follow spring MVC framework
  1. -Clearly separates business, navigation and presentation logic Proven mechanism for building a thin, clean web-tier
  • Both gsp and jsp are supported. 
  • AJAX Support
  1. Supports prototype, YUI, DOJO
  2. Use render method in your groovy code to render text, HTML, JSON
  • Has lots of plug-in already available like quartz, acegi , RichUi etc…
  1. grails create-plugin !
  2. grails install-plugin

Grails architecture

 
In Figure,
a web browser making a request to a Jetty web container. The container forwards the request on to a controller in a similar fashion to the standard MVC model. The controller may set or use data from a domain class (model). As all Grails domain classes are persistable through the GORM framework.

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