Book Image

Spring Roo 1.1 Cookbook

Book Image

Spring Roo 1.1 Cookbook

Overview of this book

Spring Roo is an easy-to-use productivity tool for rapidly developing Java enterprise applications using well-recognized frameworks such as Spring, Hibernate, AspectJ, Spring Web Flow, Spring Security, GWT, and so on. Spring Roo takes care of creating maven-enabled projects, enterprise application architecture based on your choice of technologies, unit/integration tests based on your choice of testing framework, and so on. The bottom line is that if you're using Spring, then you must consider using Spring Roo for increased productivity. Spring Roo 1.1 Cookbook brings together a collection of recipes that demonstrate how the Spring Roo developer tool simplifies rapidly developing enterprise applications using standard technologies/frameworks such as JPA, GWT, Spring, Flex, Spring Web Flow, Spring Security, and so on. It introduces readers to developing enterprise applications for the real world using Spring Roo tool. The book starts off with basic recipes to make readers comfortable with using Spring Roo tool. As the book progresses, readers are introduced to more sophisticated features supported by Spring Roo in the context of a Flight Booking application. In a step-by-step by fashion, each recipe shows how a particular activity is performed, what Spring Roo does when a command is executed, and why it is important in the context of the application being developed. Initially, you make a quick start with using Spring Roo through some simple recipes. Then you learn how Spring Roo simplifies creating the persistence layer of an enterprise application using JPA. You are introduced to the various roo commands to create JPA entities, create relationships between JPA entities, create integration tests using Spring TestContext framework, and so on. Following this, the book shows you how Spring Roo simplifies creating the web layer of an enterprise application using Spring Web MVC, Spring Web Flow, and how to create selenium tests for controller objects. Subsequently, we focus on using Spring-BlazeDS, GWT, JSON, and so on. Spring Roo commands that are used to incorporate e-mail/messaging features into an enterprise application are demonstrated next. Finally, we wrap it up with some miscellaneous recipes that show how to extend Spring Roo via add-ons, incorporate security, create cloud-ready applications, remove Spring Roo from your enterprise application, and so on.
Table of Contents (14 chapters)
Spring Roo 1.1 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Controlling auto-generated methods of persistent entities


When a persistent entity is created using Roo, a number of methods are auto-generated to simplify usage and testing of the entity. For instance, when the Flight entity was created in the Creating persistent entities recipe, the corresponding Flight_Roo_Entity.aj AspectJ ITD file was created with methods like persist, remove, merge, flush, findFlight, and so on.

In this recipe we'll look at how to control the generation of entity methods by:

  • Specifying the prefix to be used for a method

  • Instructing Roo not to generate a particular method

For the purpose of this recipe, we'll instruct Roo to do the following for the Flight entity:

  • Change the name of the persist auto-generated method to save

  • Change the name of the findFlight auto-generated method to finderForFlight

  • Don't generate countFlights and findFlightEntries methods

Getting ready

Exit the Roo shell and delete the contents of the C:\roo-cookbook\ch02-recipes directory.

Execute the ch02_jsr303_fields...