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Learning Pentaho CTools

You're reading from  Learning Pentaho CTools

Product type Book
Published in May 2016
Publisher Packt
ISBN-13 9781785283420
Pages 388 pages
Edition 1st Edition
Languages
Author (1):
Miguel Gaspar Miguel Gaspar
Profile icon Miguel Gaspar

Table of Contents (17) Chapters

Learning Pentaho CTools
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started with CTools 2. Acquiring Data with CDA 3. Building the Dashboard Using CDF 4. Leverage the Process with CDE 5. Applying Filters to the Dashboard 6. Tables, Templates, Exports, and Text Components 7. Advanced Concepts Using CDF and CDE 8. Visualizations Using CCC 9. Pentaho App Builder 10. Embed, Deploy, and Debug Index

The query and freeform components


The components we have covered will give you the freedom to do almost everything you need to do to build an amazing dashboard. However, sometimes we need to go further, and we might be able to do this just by using the available components. To build custom visualizations, you can also make use of the query and freeform components, but what's the difference between them? A very frequently asked question is where to use one or the other. So now let's answer this question and learn how to use these components.

The query component will trigger a query, but you want to display some custom content inside your dashboard. Here you can't avoid setting a valid query, so the freeform component is useful here. The freeform component will not trigger any query so you can use it as you want/need. You may be thinking, If it does not do anything, why would I use it? Well, it's because sometimes you have the need to execute some code that respects the lifecycle (a good example...

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