Book Image

Pentaho 8 Reporting for Java Developers

By : Jasmine Kaur, Francesco Corti
Book Image

Pentaho 8 Reporting for Java Developers

By: Jasmine Kaur, Francesco Corti

Overview of this book

This hands-on tutorial, filled with exercises and examples, introduces the reader to a variety of concepts within Pentaho Reporting. With screenshots that show you how reports look at design time as well as how they should look when rendered as PDF, Excel, HTML, Text, Rich-Text-File, XML, and CSV, this book also contains complete example source code that you can copy and paste into your environment to get up-and-running quickly. Updated to cover the features of Pentaho 8, this book will teach you everything you need to know to build fast, efficient reports using Pentaho. If your interest lies in the technical details of creating reports and you want to see how to solve common reporting problems with a minimum of fuss, this is the book for you.
Table of Contents (25 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Dedication
Preface

The OLAP data source


The Online Analytical Processing (OLAP) data source is used in case a multidimensional engine is involved.

Note

Quoting from Wikipedia about OLAP (https://en.wikipedia.org/wiki/Online_analytical_processing): a multidimensional structure is defined as a variation of the relational model that uses multidimensional structures to organize data and express the relationships between data. Even when data is manipulated it remains easy to access and continues to constitute a compact database format. A multidimensional structure is quite popular for analytical databases that use OLAP applications. Analytical databases use these databases because of their ability to deliver answers to complex business queries swiftly.

The Pentaho suite provides an open source multidimensional engine called Mondrian (http://community.pentaho.com/projects/mondrian). Mondrian is entirely written in Java and it executes queries written in the Multidimensional Expressions (MDX) language, reading data...