BPEL and Java Cookbook

Dynamic indexing of the variables

In situations where we have information in a list of the same elements, it is not possible to access a variable by name. Rather, we use indexing to access the variable data from a list.

Getting ready

We will examine dynamic indexing of the variables in the Manipulate1_1 BPEL process from the Assigning date or time to the variables recipe.

First, let's extend the BPEL process by defining a new element in the Manipulate1_1 schema file as follows:

<element name = "ChildrenElementType">
  <complexType>
    <sequence>
      <element name = "child" type = "string" minOccurs = "1" maxOccurs = "unbounded"/>
    </sequence>
  </complexType>
</element>

The Element-type variable is defined as an array of the <child> strings.

Also, we modify the ...