This tutorial covers:
- Defining and creating a Java service
- Service parameters
- Special unchecked (unmatched) IN/OUT parameters
- Security-related programming
- Calling services from code (using dispatcher).
- IN/OUT parameter mismatch when calling services
- Sending feedback; standard return codes success, error and fail
- Implementing Service Interfaces
- Synchronous and asynchronous services
- Using the Service Engine tools
- ECAs: Event Condition Actions
You can download the article in PDF format on this page:
http://www.packtpub.com/apache-ofbiz-development-beginners-tutorial/book
Look for it in the section "book details" on the right hand side.