Book Image

Getting Started with Talend Open Studio for Data Integration

By : Jonathan Bowen
Book Image

Getting Started with Talend Open Studio for Data Integration

By: Jonathan Bowen

Overview of this book

Talend Open Studio for Data Integration (TOS) is an open source graphical development environment for creating custom integrations between systems. It comes with over 600 pre-built connectors that make it quick and easy to connect databases, transform files, load data, move, copy and rename files and connect individual components in order to define complex integration processes. "Getting Started with Talend Open Studio for Data Integration" illustrates common uses and scenarios in a simple, practical manner and, building on knowledge as the book progresses, works towards more complex integration solutions. TOS is a code generator and so does a lot of the "heavy lifting"ù for you. As such, it is a suitable tool for experienced developers and non-developers alike. You'll start by learning how to construct some common integrations tasks ñ transforming files and extracting data from a database, for example. These building blocks form a "toolkit"ù of techniques that you will learn how to apply in many different situations. By the end of the book, once complex integrations will appear easy and you will be your organization's integration expert! Best of all, TOS makes integrating systems fun!
Table of Contents (22 chapters)
Getting Started with Talend Open Studio for Data Integration
Credits
Foreword
Foreword
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

On Component OK


As we saw in the two previous examples, the Studio allows us to define flow conditions when a subjob, or a group of components, completes or shows errors. When we define an On Subjob Complete condition, all of the components in the subjob must complete before the next subjob is triggered.

However, we may sometimes require another subjob to commence as soon as it is able (when a specific component within a subjob is complete), rather than waiting until all of the components are complete. To achieve this, we can use the Studio's On Component OK condition.

The job illustrated in the following screenshot shows an On Component OK in use:

In this example a delimited file is read, transformed by a tMap component, sorted, filtered, and then written to an XML file. The input file is also archived once it has been read. Crucially, the archiving process happens as soon as the delimited file has been read. If, instead, the connection to the archive component had been On Subjob OK, the...