Book Image

Enterprise Application Development with Ext JS and Spring

By : Gierer
Book Image

Enterprise Application Development with Ext JS and Spring

By: 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 (16 chapters)
14
A. Introducing Spring Data JPA
15
Index

Creating components using Sencha Cmd


It is possible to use Sencha Cmd to generate skeleton components. The most useful of these commands are those used to generate basic models.

Generating model skeletons

A model skeleton can be generated very easily using the Sencha Cmd Tool. The syntax is as follows:

sencha generate model ModelName [field1:fieldType,field2:fieldType…]

This command must be executed in the application root (the directory in which the app.js file is found). Note that there must not be any spaces in the comma-separated field listing. The company model skeleton can be generated by executing the following command:

sencha generate model Company idCompany:int,companyName:string

The final string for the companyName field is not strictly required as the default property type is string, if not specified. The output from this command looks as shown in the following screenshot:

The generated Company.js file is written into the app/model directory and has the following content:

Ext.define...