The gTunes example will guide you through the development of a music store . A screenshot of the structure of a Grails application appears in Figure Grails is a full stack framework which aims to greatly simplify the task of building serious web applications for the JVM. The concepts within Grails, like. Customizing the Application Class For instructions on how to do this see the Gradle user guide "The Definitive Guide to Grails 2".
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Original filename: medical-site.info The Definitive Guide to Grails 2 teaches you all you need to know about this. PART 2. Grails by Example. CHAPTER Getting Started with Grails. Grails and author of The Definitive Guide to Grails—thank you for such an amazing. The Definitive Guide to Grails 2 [Jeff Scott Brown, Graeme Rocher] on site. com. *FREE* shipping on qualifying offers. Grails is a full stack framework which .
This has powerful implications that might not be immediately apparent. For example, a Groovy object can implement Java.
Here was a language with capabilities similar to those of languages such as Ruby and Smalltalk running directly in the JVM. The potential is obvious, and the ability to intermingle Java code with dynamic Groovy code is huge.
In addition, Groovy allows mixing of static types and dynamic types, combining the safety of static typing with the power and flexibility to use dynamic typing where necessary. Across different programming platforms, varying idioms essentially express the same concept.
Moving to a new platform requires relearning all of these concepts and their equivalent APIs or idioms—easy for some, a challenge for others. Not that learning new things is bad, but a cost is attached to knowledge gain in the real world, a cost that can present a major stumbling block in the adoption of any new technology that deviates from the standards or conventions defined within the Java platform and the enterprise.
In addition, Java has standards for deployment, management, security, naming, and more. Grails is, however, a technology that speaks for itself: the moment you experience using it, a little light bulb will go on inside your head. We hope it will provide a broad understanding of Grails and its feature set. Installing and Configuring Grails Installing Grails is almost as simple as using it, but there is at least one prerequisite to take into account.
Grails requires a valid installation of the Java SDK 1. There is, however, space for another such framework that integrates seamlessly with Java.
Thousands of companies have invested in Java, and these same companies are losing out on the benefits of a Rails—like framework. Enter Grails. Grails is not just a Rails clone.
It aims to provide a Rails—like environment that is more familiar to Java developers and employs idioms that Java developers are comfortable using, making the adjustment in mentality to a dynamic framework less of a jump.
Grails' foundation is on solid open source technologies such as Spring, Hibernate, and SiteMesh, which gives it even more potential in the Java space: Spring provides powerful inversion of control and MVC, Hibernate brings a stable, mature object relational mapping technology with the ability to integrate with legacy systems, and SiteMesh handles flexible layout control and page decoration.
Grails complements these with additional features that take advantage of the coding—by—convention paradigm such as dynamic tag libraries, Grails object relational mapping, Groovy Server Pages, and scaffolding. Graeme Rocher , Grails lead and founder, and Jeff Brown bring you completely up—to—date with their authoritative and fully comprehensive guide to the Grails framework. You'll get to know all the core features, services, and Grails extensions via plug—ins, and understand the roles that Groovy and Grails are playing in the changing Web.
Graeme Rocher is an experienced software engineer, consultant and dynamic language expert.
Graeme is project lead of the open source Grails web application framework Grails. In Graeme's role as head of Grails development at SpringSource, the professional open source services company behind the Spring framework, Graeme leads the development of the Grails web framework and provides consulting, training and support to SpringSource's clients.
Graeme is a frequent speaker at industry conferences on subjects related to Groovy, Grails and dynamic languages in Java.
download eBook. download Softcover. FAQ Policy. About this book The rise of Ruby on Rails has signified a huge shift in how we build web applications today; it is a fantastic framework with a growing community. Show all.