Applying mathematical calculations on data in the variables

JDeveloper provides the standard set of mathematical calculations that can be used in the BPEL processes. We will use the mathematical calculations on numerically defined variables.

Getting ready

This recipe continues the discussion of the BPEL process Manipulate1_1 from the Assigning numerical values to the variables recipe.

We extend the request and response message structure in Manipulate1_1.xsd. The request message is extended with the item and priceVAT elements as follows:

<element name = "process">
  <complexType>
    <sequence>
      <element name = "input" type = "string"/>
      <element name = "item" type = "string"/>
      <element name = "priceVAT" type = "decimal"/>
      <element name = "child_no" type = "integer"/>
    </sequence>
  </complexType>
</element>

The response message is extended with the priceNet and vat elements as follows:

<element name = "processResponse...