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

Appendix A. Entity Engine by Example

In this chapter, find the following topics discussed:

  • Putting it all together with a data model example

  • Reading data from an OFBiz data source

  • Working with large result sets

  • Removing data from an OFBiz data source

  • Writing data to an OFBiz data source

  • Using the EntityUtil utility programmatically

  • The OFBiz automatic sequence generator

  • An entity operator reference

Introduction

In this chapter, we depart from the usual book format to offer useful Entity Engine hints and tips by way of examples. Each example is designed to help you master some aspect of the OFBiz Entity Engine. Intended for Java developers (and Groovy/BeanShell enthusiasts), you will find many details here offered to optimize your use of the OFBiz Entity Engine and add data-driven features to your own OFBiz Applications.

Note

Before we get started, a few ground rules:

The Entity Engine deals with "data sources" and "entities". In many cases, we shall be referring to the concrete instantiation of a "data source" as a database and "entities" as database tables respectively. This is intentional as in the real world you are not likely to encounter a "data source", but rather a database.

Similarly, OFBiz entities only have meaning within the context of OFBiz. For all practical purposes, an OFBiz entity is the model of a relational database table. In a relational database, tables have column names that are referred to here as "fields". Data is stored in database table records. Records and the term "rows" are used interchangeably here.