Book Image

Enterprise Application Development with Ext JS and Spring

By : Gerald Gierer
Book Image

Enterprise Application Development with Ext JS and Spring

By: Gerald Gierer

Overview of this book

Spring and Ext JS are cutting edge frameworks that allow us to build high performance web applications for modern devices, that are now consuming data at a faster rate than ever before. It is the appropriate time for you to understand how to best leverage these technologies when architecting, designing, and developing large scale web development projects. This practical guide condenses an approach to web development that was gained from real world projects, and outlines a simple, practical approach to developing high performance, and enterprise grade web applications. Starting with configuring Java, NetBeans, and MySQL to prepare your development environment, you will then learn how to connect your NetBeans IDE to the MySQL database server. We will then explore the Task Time Tracker (3T) project database structure and populate these tables with test data. Following on from this, we will examine core JPA concepts after reverse engineering the domain layer with NetBeans. Leveraging the Data Access Object design pattern, you will learn how to build the Java DAO implementation layer assisted by generics in base classes, followed by a Data Transfer Object enabled service layer to encapsulate the business logic of your 3T application. The final chapters that focus on Java explore how to implement the request handling layer using Spring annotated controllers, and deploy the 3T application to the GlassFish server. We will then configure the Ext JS 4 development environment and introduce key Ext JS 4 concepts, including MVC and practical design conventions. Covering a variety of important Ext JS 4 strategies and concepts, you will be fully-equipped to implement a variety of different user interfaces using the Ext JS MVC design pattern. Your journey ends by exploring the production build and deployment process using Maven, Sencha Cmd and GlassFish.
Table of Contents (22 chapters)
Enterprise Application Development with Ext JS and Spring
About the Author
About the Reviewers
Introducing Spring Data JPA


The 3T Admin interface introduced the tree component for displaying hierarchical data. The company, project, and task relationship was loaded into the tree via a single JSON request and allowed the user to maintain and add new entities.

Dynamic loading of tree nodes was then explained and implemented. This strategy is best suited for very large trees with potentially complex data structures. Node-by-node dynamic loading is easily achieved with minimum changes required in the Ext JS 4 client and Java backend.

Displaying multiple tree columns and the basic drag-and-drop functionality was also explored and implemented to show the flexibility of the Ext JS 4 tree.

Our final step in the enterprise application development with Ext JS and Spring journey is building our 3T project for production deployment. Thankfully, Maven and Sencha Cmd can help make this an easy task as you will learn in our final chapter, Chapter 13, Moving Your Application to Production.