A global variable is an alias association for a type and its value. Instead of using the function nodeValue("xpath") you may then use the global variable instead.
As an example. If you want to calculate a price like this:
nodeValue("/purchaseOrder/item/quantity") * nodeValue("/purchaseOrder/item/price")
You may use the following syntax after you have defined two global variables:
quantity * price
To define a variable you need to specify the following:
| Parameter | Description | Example |
|---|---|---|
| xpath | XPath to address a node or a node list. Every referenced node will become a variable definition. | /purchaseOrder/item/quantity /item//* //quantity |
| name | Defines the name and its value holder (optional). If no name is defined, the node tag name will be taken. If just (withoud value holder name) a name is defined, the value is the direct child value of the target node (specified in xpath). If a name and a value holder is defined, the name and the value holder name must be an existing direct child of the target node (specified in xpath). | myName myName,myValue |
| namePrefix | ||
| isDynamic |