Book Image

BIRT 2.6 Data Analysis and Reporting

By : John Ward
Book Image

BIRT 2.6 Data Analysis and Reporting

By: John Ward

Overview of this book

BIRT is an Eclipse-based open source reporting system for web applications based on Java and Java EE. To address a wide range of reporting needs within a typical application, ranging from operational or enterprise reporting to multi-dimensional online analytical processing (OLAP), you need to know BIRT from head to toe. If you wish to start making reports easily and quickly, and also want to be up-to-date with the latest developments in BIRT, then this book is for you. It will guide you from scratch to develop reports using the Eclipse BIRT project. You will learn how to connect to data, use report items to display and format data, and use scripting to build advanced reports and charts.The book steers you through each step of report setup, to creating, designing, formatting, and deploying reports with data from a wide range of data sources. Its focus is on familiarizing you with the most visible and familiar product built with the BIRT framework – the BIRT Report Designer. It starts by introducing the concepts of business intelligence and open source software, and different installation methods. It will introduce you to the various visual report elements that can be used to design BIRT reports, such as the Palette and Grid components. You will learn the details of the data components of BIRT (the Data Source and the Data Set), different types of source data that BIRT supports such as XML files, flat text files, and databases, and the creation of all of the elements while connecting to Data Sources in reports and Report Projects. By the end of the book, you will be able to enhance the presentation of your report using Charts, Hyperlinks, and Drill Through. You will also be able to take advantage of the scripting capabilities that BIRT has to offer with Expressions and Event Handlers and successfully deploy BIRT reports.The book includes a case study at the end along with a real-world example that runs throughout the book.
Table of Contents (15 chapters)
BIRT 2.6 Data Analysis and Reporting
Credits
About the Author
About the Reviewers
Preface

Cascading parameters


In some cases, it is desirable to have the user select a high level category in order to limit the number of parameter choices a user sees. For example, let's say we were looking at a report where a user needed to look at products. In the case of a large company, there could be thousands of possible products or product codes. It is better to filter based on a product line to find the actual products one is looking for. Using the Classic Cars example, we have many different types of car models such as the 1969 Harley Davidson Ultimate Chopper, Dodge Charger, and 1948 Porsche 356-A Roadster. If we want to limit what is displayed, we limit our parameter display by product lines such as Classic Cars, Motorcycles, or Vintage Cars. Once a user has selected one of these, they would see only the vehicles under the corresponding product lines. These are called cascading parameters.

Let's look at an example. In this report, we are going to modify the Employee-Chapter6.rptDesign...