Small Talks/2022/November/How To Load and Sort On Demand using Custom AbstractListModel and Sortable

Author
Edilson Alexandre Cuamba, Software Engineer, EXI - Engenharia e Comercialização de Sistemas Informáticos

Date
November 18, 2022

Version
ZK 9.6.1-Eval

This page is under construction, so we cannot guarantee the accuracy of the content!

Overview

Sometimes when you want to display data with a table structure, you use Listbox. This component is appropriate to it and works fine until your data gets huge and passes millions of rows; you will notice a little delay when you open the view with this component. For that reason, I needed to create a custom AbstractListModel that supports fetching only the data for the current page on the screen. In this article, I will show you how to build your own CustomAbstractListModel<T> that supports pagination at the database layer. Let’s do it!

Dependencies

To build this, we will need some functions. First is dependency injection (you can use other frameworks, but I personally like Spring) provided by Spring Framework. Second is the capacity to preserve the query structure, and change the structure during the pagination, for this, I use a library called search-jpa-hibernate. Relax, and I will show you how to configure this!

This is my build.gradle file:

code snippet

public class ImageSaver {

public void save(String imageDataUrl) throws IOException {
        //Sample Code for code syntax
    }
}

Inline Code

This is an Inline Code

Download

put your github code link etc.

Summary

A short conclusion, welcome feedback

Comments

Copyright © {{{name}}}. This article is licensed under GNU Free Documentation License.

</includeonly>