Book Image

Learning Pentaho CTools

By : Miguel Gaspar
Book Image

Learning Pentaho CTools

By: Miguel Gaspar

Overview of this book

Pentaho and CTools are two of the fastest and most rapidly growing tools for practical solutions not found in any other tool available on the market. Using Pentaho allows you to build a complete analytics solution, and CTools brings an advanced flexibility to customizing them in a remarkable way. CTools provides its users with the ability to utilize Web technologies and data visualization concepts, and make the most of best practices to create a huge visual impact. The book starts with the basics of the framework and how to get data to your dashboards. We'll take you all the way through to create your custom and advanced dashboards that will create an effective visual impact and provide the best user experience. You will be given deep insights into the lifecycle of dashboards and the working of various components. Further, you will create a custom dashboard using the Community Dashboards Editor and use datasources to load data on the components. You will also create custom content using Query, the Freeform Addins Popup, and text components. Next, you will make use of widgets to create similar sections and duplicate components to reproduce other components on a dashboard. You will then learn to build a plugin without writing Java code, use Sparkl as a CPK plugin manager, and understand the application of deployment and version control to dashboard development. Finally, you will learn tips and tricks that can be very useful while embedding dashboards into other applications. This guide is an invaluable tutorial if you are planning to use custom and advanced dashboards among the solutions that you are building with Pentaho.
Table of Contents (17 chapters)
Learning Pentaho CTools
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

CDA cache


CDA is able to cache the queries that have been executed. Every query that runs will be cached or not cached, and by the time defined in the Cache property element when defining the Data Access. You can also set the interval of time to grab results from the cache, avoiding new requests to the server.

Managing the cache and the scheduler

In the PUC menu, click on Tools | Refresh | CDA Cache Manager, and you will have the ability to clean the CDA cache. When choosing this option, every single cache will be flushed.

It's also possible to manage what has been cached or is scheduled to be cached. By clicking on the PUC menu and going to Tools | CDA Cache Manager, it will open a new tab with the scheduled/cached queries manager. When opening the manager, you have the ability to choose between two modes by using the Scheduled Queries or Cached Queries buttons, respectively:

The previous image is an example of the Scheduled Queries manager, and it will display all the queries that have been...