Book Image

IBM Websphere Portal 8: Web Experience Factory and the Cloud

Book Image

IBM Websphere Portal 8: Web Experience Factory and the Cloud

Overview of this book

IBM WebSphere® Portal is a cost- effective, scalable, and proven solution for the portal enterprise space. Given the depth and the breadth of WebSphere Portal and the challenges of developing a portal project, you need a book that covers all the nuances of the entire portal project lifecycle. This book accomplishes just that. In this book, we cover topics that range from portal assessment, governance, and architecture, to design and development. These topics are covered not only within these traditional areas, but also within the cloud environment context. Keeping both contexts in mind, several chapters are dedicated to portal and portlet testing, troubleshooting, performance monitoring, best practices, and tuning. The cloud option is also analyzed and discussed for hosting, developing, and publishing portal applications. We also cover Web Experience Factory (WEF) as the tool of choice for portlet development. We take you from the introduction to the development of advanced portlets in an intuitive and efficient manner. We cover not only common topics, such as builders, models, and user interface development, but also advanced topics, such as Dojo builders, Ajax techniques, and WEF performance. Within the WEF space, we cover other topics, which have never been covered before by any other competing book. You will learn how to develop multichannel applications, including web mobile applications and you will learn about the model types available for portlet development, including when and how to utilize them. We also present and discuss numerous aspects and facets of implementing a WEF project and what it takes to successfully deliver them. The richness and the profundity of the topics combined with an intuitive and well-structured presentation of the chapters will provide you with all the information you need to master your skills with the IBM WebSphere Portal project lifecycle and Web Experience Factory.
Table of Contents (27 chapters)
IBM WebSphere Portal 8: Web Experience Factory and the Cloud
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface

What is Dojo and Ajax


It is impossible to talk about Dojo without making reference to Ajax. Before we define and discuss these technologies, let's briefly investigate the challenges encountered by web applications as well as portal applications.

The problem

Dynamic web applications heavily rely on the Application Server to maintain a user session. The interaction with the user and consequently the session maintenance is performed through the processing of request and response objects leading to the rendering of a full web page. This process needs to be done synchronously.

Throughout the session life of a web application, there can be many requests to return the same page, but with small changes. This brings us to the core of the problem. Even for the smallest changes, traditional web applications require a full page reload.

Concerning Portal, this limitation is even more problematic because in order to respond to changes to update the content of one portlet, all the portlets on a page need...