Book Image

Apache OfBiz Cookbook

Book Image

Apache OfBiz Cookbook

Overview of this book

Apache Open For Business (OFBiz) is an enterprise resource planning (ERP) system that provides a common data model and an extensive set of business processes. But without proper guidance on developing performance-critical applications, it is easy to make the wrong design and technology decisions. The power and promise of Apache OFBiz is comprehensively revealed in a collection of self-contained, quick, practical recipes in this Cookbook. This book covers a range of topics from initial system setup to web application and HTML page creation, Java development, and data maintenance tasks. Focusing on a series of the most commonly performed OFBiz tasks, it provides clear, cogent, and easy-to-follow instructions designed to make the most of your OFBiz experience. Let this book be your guide to enhancing your OFBiz productivity by saving you valuable time. Written specifically to give clear and straightforward answers to the most commonly asked OFBiz questions, this compendium of OFBiz recipes will show you everything you need to know to get things done in OFBiz. Whether you are new to OFBiz or an old pro, you are sure to find many useful hints and handy tips here. Topics range from getting started to configuration and system setup, security and database management through the final stages of developing and testing new OFBiz applications.
Table of Contents (15 chapters)
Apache OFBiz Cookbook
Credits
About the Author
About the Reviewers
Preface

Managing error messages


HttpServletRequest object's attributes are used to pass error messages from Java programs to other OFBiz resources, including web pages. By convention, error messages are passed as either a single HttpServletRequest attribute name/value pair (where the name is _ERROR_MESSAGE_) or as a list of messages (where the name of the list is _ERROR_MESSAGE_LIST_). All HttpServletRequest object attributes are assumed to be Java Strings.

How to do it...

While you may pass error messages in any fashion you like, the consolidation of error messages and message lists for consumption by other OFBiz resources is made easier if you follow some simple rules:

  1. 1. From within an Event, set the appropriate HttpServletRequest attribute as shown:

    request.setAttribute("_ERROR_MESSAGE_",
    "Error: This is an error message");
    // Or pass a list of error messages
    List myErrors = UtilMisc.toList("This is an error message",
    "This is another error message");
    request.setAttribute("_ERROR_MESSAGE_LIST_...