Spring Roo CS476 Aleksey Bukin Peter Lew

What is Roo? Productivity tool Allows for easy creation of Enterprise Java applications Runs alongside existing projects Detects changes made to files, adjusts itself as necessary

What Roo is not. Roo is not a runtime Roo is not an IDE plugin Roo is not an annotation processing library o Java EE 6 annotations are not used o Compatible with Java EE 5

Core Technologies Spring Framework AspectJ

Spring Spring Framework is required by Roo Spring Aspects - using AspectJ definition language Configurable dependency injection Other Spring projects may be included o Spring Security o Spring Web Flow o Maven o Java Server Pages User decides which Spring components to integrate

AspectJ Aspect Oriented Programming (AOP) framework Inter-Type Declaration (ITD) Automatic Code Generation o Interfaces o Methods o Fields

Why use Roo? Higher Productivity Compatibility with existing projects Auto-configuration available: o Java Persistence API (JPA) o Database backend o Dependency injection Integration with existing technolgies o Spring MVC layer o Google Web Toolkit o HTML 5 standard

Productivity Code generated in separate files Independent from project ITDs are referenced automatically Incremental approach to application-building Technologies and frameworks automatically added on-demand

Compatibility Compatible with Java EE 5 SpringSource certified architecture Automatic maintenance and updates of XML, JSP files

Convenience Runs in background Simple command-line interface Easy to add or remove Fail-safe, keeps track of changes made to filesystem

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