Book Image

Oracle Data Integrator 11g Cookbook

Book Image

Oracle Data Integrator 11g Cookbook

Overview of this book

Oracle Data Integrator (ODI) is Oracle's strategic data integration platform for high-speed data transformation and movement between different systems. From high-volume batches, to SOA-enabled data services, to trickle operations, ODI is a cutting-edge platform that offers heterogeneous connectivity, enterprise-level deployment, and strong administrative, diagnostic, and management capabilities."Oracle Data Integrator 11g Cookbook" will take you on a journey past your first steps with ODI to a new level of proficiency, lifting the cover on many of the internals of the product to help you better leverage the most advanced features.The first part of this book will focus on the administrative tasks required for a successful deployment, moving on to showing you how to best leverage Knowledge Modules with explanations of their internals and focus on specific examples. Next we will look into some advanced coding techniques for interfaces, packages, models, and a focus on XML. Finally the book will lift the cover on web services as well as the ODI SDK, along with additional advanced techniques that may be unknown to many users.Throughout "Oracle Data Integrator 11g Cookbook", the authors convey real-world advice and best practices learned from their extensive hands-on experience.
Table of Contents (19 chapters)
Oracle Data Integrator 11g Cookbook
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Using variables in topology


One of the most common use cases for this capability is to allow a developer to build an application that can dynamically connect to a source or target system in order to repeat a uniform series of activities against each system. For example, perhaps there is a requirement to connect to a thousand different servers in order to collect daily activity. Obviously it would not be practical to create a thousand physical data servers within the topology along with a thousand contexts, so instead we can create one data server and use a variable within it to direct subsequent activities towards each individual data server. In this recipe, we will examine the use of variables within the ODI topology.

Note

A very important point to remember is that since ODI establishes all physical connections at session start-up time, embedded topology variables must be resolved before the connections are opened. Therefore, any application using this technique must be "launched" from an...