How to define a Repeating Global Variable by Jorge Herreria



This blog addresses the following use case:  "In my OIC Orchestration, when I define a Global variable based on a repeating element (aka unbounded), the global variable is not repeating; I cannot add/append to it"

The nutshell solution:

Choose the parent element when defining the global variable


Why the variable is not repeating?

Because of XML Rules: When a global variable is defined, internally it is defining a reference to a XML Document. Any XML Document must have a single instance root element; in other words it cannot be a collection of root elements, even if they have the same element name.

How Do I Solve my requirement?

When defining the Variable, choose the parent element of the unbounded element (repeating). That way the  XML Document root element will be the parent element, and one of its children will be the unbounded element

To reference the variable use the location path (xpath) to the unbounded element.


Defining vErrors with the intent to use errorDetails repeating element. Read the complete article here.

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Technorati Tags: SOA Community,Oracle SOA,Oracle BPM,OPN,Jürgen Kress

About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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