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
About the Author
About the Reviewers

Chapter 7. Job Orchestration

In the previous chapters, we have looked at examples of integration jobs that had a single purpose and were composed of small numbers of components, maybe two or three together. The purpose of these examples was to explain how different components work and are configured; but, in real-life situations, our integration jobs are likely to be made up of 10, 20, or more components, as we use Talend integration jobs to control the full end-to-end process, from file management to data processing tasks; from file mapping to database operations.

In this chapter, we will learn about job orchestration and how we can use subjobs, iterate connections, and flow components to control the logical flow of our jobs.

We will learn the following topics in this chapter:

  • Breaking the overall integration job into discrete tasks using subjobs

  • Defining flow logic within our jobs so that certain tasks are invoked only if specific conditions apply

  • Providing checkpoints where we can trap errors...