Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Jakarta EE Application Development
  • Table Of Contents Toc
  • Feedback & Rating feedback
Jakarta EE Application Development

Jakarta EE Application Development

By : David R. Heffelfinger
5 (2)
close
close
Jakarta EE Application Development

Jakarta EE Application Development

5 (2)
By: David R. Heffelfinger

Overview of this book

Jakarta EE stands as a robust standard with multiple implementations, presenting developers with a versatile toolkit for building enterprise applications. However, despite the advantages of enterprise application development, vendor lock-in remains a concern for many developers, limiting flexibility and interoperability across diverse environments. This Jakarta EE application development guide addresses the challenge of vendor lock-in by offering comprehensive coverage of the major Jakarta EE APIs and goes beyond the basics to help you develop applications deployable on any Jakarta EE compliant runtime. This book introduces you to JSON Processing and JSON Binding and shows you how the Model API and the Streaming API are used to process JSON data. You’ll then explore additional Jakarta EE APIs, such as WebSocket and Messaging, for loosely coupled, asynchronous communication and discover ways to secure applications with the Jakarta EE Security API. Finally, you'll learn about Jakarta RESTful web service development and techniques to develop cloud-ready microservices in Jakarta EE. By the end of this book, you'll have developed the skills to craft secure, scalable, and cloud-native microservices that solve modern enterprise challenges.
Table of Contents (18 chapters)
close
close
15
Chapter 15: Putting it All Together

Server-sent events

Typically, every interaction between a web service and its client is initiated by the client. The client sends a request (typically GET, POST, PUT, or DELETE), and then receives a response from the server. Server-sent events technology allows RESTful web services to “take the initiative” to send messages to clients; that is, to send data that is not a response to a client request. Server-sent events are useful for sending data continuously to a client for applications such as stock tickers, newsfeeds, and sports scores.

The following example illustrates how to implement this functionality into our Jakarta REST web services:

package com.ensode.jakartaeebook.serversentevents
// imports omitted for brevity
@ApplicationScoped
@Path("serversentevents")
public class SseResource {
  private   SseBroadcaster sseBroadcaster;
  private OutboundSseEvent.Builder eventBuilder;
  private ScheduledExecutorService...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist download font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY