Getting Started with Roo by Josh Long, Steve Mayzak

By Josh Long, Steve Mayzak

Spring Roo is going a step past the Spring Framework via bringing actual quick program improvement to Java—just as Grails has performed with Groovy. This concise advent exhibits you the way to construct functions with Roo, utilizing the framework's shell as an clever and timesaving code-completion software. It's a great RAD instrument simply because Roo does a lot of the tedious code maintenance.

You'll start by way of development an easy shopper courting administration software, whole with step by step directions and code examples. how one can regulate any a part of the applying with Roo's opt-in characteristic, whereas utilizing this open resource framework to automate the remainder of the code.
* organize a Spring program and dealing Maven construct to work out Roo in motion
* deal with patience with JPA and the Neo4j graph database—and learn the way Roo helps NoSQL databases
* Use Roo’s database reverse-engineering characteristic to generate an information version from an latest schema
* construct Roo purposes with Spring MVC, Spring WebFlow, Google net Toolkit, Vaadin, and different internet frameworks
* safe and try your software

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If you’d like to exert control over how forms look in Spring Roo, then you can simply modify these tag files and you can exert control 30 | Chapter 2: Spring Roo on the Web through the entire application. In essence, Roo’s made it easy for you to build a very modular view, quickly. How Spring Roo Builds the Scaffolding Spring Roo builds these forms based on the relationships that it can infer from the JPA mappings. Note that Spring Roo doesn’t strictly rely on the JPA associations, instead it relies on a generic model of the relationships that Roo maintains.

These tags also embed Dojo JavaScript where appropriate to provide client-side interactivity. WEB-INF/tags/menu Self-contained directory for tags to display the menu and navigation for your application. WEB-INF/tags/util Self-contained directory for tags to handle common scenarios like loading JavaScript, theming, and wrapping blocks in panels. WEB-INF/views Directory where common fragments used across all your pages—like footers and sidebars and so on —are stored, as well as fragments for individual pages, in nested folders.

In this configuration, you’ll have to manually restart the WTP instance whenever you’d like to see updates. Usually, these redeployment cycles are trivial—Tomcat (and tcServer, which is based on it) enjoy the fastest deployment times of any enterprise Java servers. However, things could always be better, and SpringSource Tool Suite can help out here, too. Enable the “Application Reload Behavior” found in the same dialog box. This functionality gives you near instantaneous redeployment without ever restarting the server.

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