The example application

We will develop a simple application to test Vaadin's capability to show hundreds of thousands of rows in a Grid component. The users can filter the data in the Grid by typing a filter text that the application matches against three of the columns (Client, Phone Number, and City). The users can also change the position of the columns (by dragging them from the header) and order the rows (by clicking on the column headers). The following is a screenshot of the example application:

The data model

This chapter uses the same data model used in Chapter 8, Adding Reporting Capabilities. The data model is based on a simple SQL table, Call. We'll use JPA to connect to a file-based H2 database. The JPA logic is encapsulated in a CallRepository class. For more details about the data model, please refer to Chapter 8, Adding Reporting Capabilities.

Note

You can find the complete source code of this chapter's example in the Data-centric-Applications-with-Vaadin-8\chapter-09 Maven...