Book Image

Play Framework Cookbook

By : Alexander Reelsen
Book Image

Play Framework Cookbook

By: Alexander Reelsen

Overview of this book

<p>The Play framework is the new kid on the block of Java frameworks. By breaking with existing standards the play framework tries not to abstract away from HTTP as most web frameworks do, but tightly integrates with it. This means quite a shift for Java programmers. Understanding these concepts behind the play framework and its impact on web development with Java are crucial for fast development of applications.<br /><br />The Play Framework Cookbook starts where the beginner documentation ends. It shows you how to utilize advanced features of the Play framework &ndash; piece by piece and completely outlined with working applications!<br /><br />The reader will be taken through all layers of the Play Framework and provided with in-depth knowledge from as many examples and applications as possible. Leveraging the most from the Play framework means to think simple again in a java environment. Implement your own renderers, integrate tightly with HTTP, use existing code, improve site performance with caching and integrate with other web services and interfaces. Learn about non-functional issues like modularity or integration into production and testing environments. In order to provide the best learning experience during reading Play Framework Cookbook, almost every example is provided with source code, so you can start immediately to integrate recipes into your own play applications.</p>
Table of Contents (16 chapters)
Play Framework Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Further Information About the Play Framework
Index

Implementing your own persistence layer


Usually as a developer you are choosing a framework (be it a web framework or for any type of application development) because it already delivers most of the part's you need. Typically, a standard requirement is the support of a persistence layer or technology you are going to use for your project. However, there might be cases where you have to create your own persistence layer, for example, if you are using a proprietary or in-house developed solution or if you need access for a new technology like one of the many available NoSQL databases. There are several steps which need to be completed. All of these are optional; however, it makes sense to develop your own persistence layer as similar to other persistence layers in Play, so you actually make sure it fits best in the concept of Play and is easily understood by most of the users. These steps are:

  • Active record pattern for your models including bytecode enhancement for finders

  • Range queries, which...