Example Expressions for Message, Element, and Complex Schema Type Variables

ActiveVOS Designer User’s Guide

The following are example expressions for message, element and complex schema type variables

Message type variable: $variable.part/location

Example: $StatusVariable.StatusPart2/e:statusDescription

Element type variable: $variable/location

Example: $AStatus/e:statusDescription

Schema complex type variable: $variable/location

Example: $Results/e:AuctionResult[2]/@AuctionID

To express the following statement in a From clause of a Copy Operation:

itemsShipped = itemsShipped + itemsCount

the From expression would look like this:

$itemsShipped + $shipnotice.props/itemsCount

BPEL 1.1

bpws:getVariableData(‘itemsShipped’) + bpws:getVariableProperty(‘shipnotice’, ‘props:itemsCount’)

The following expression converts a variable and part to a string:

string($input.parameters)

BPEL 1.1

string(bpws:getVariableData('input','parameters'))

The following three expressions use similar functions and parameters, but are very different:

$input.parameters = ‘low’

bpws:getVariableData('input','parameters')= ‘low’

Compares the entire value of the input with the string "low", looking for an exact match.

contains($input.parameters, ‘low’)

contains(bpws:getVariableData('input','parameters'), ‘low’)

Compares the input with "low" and returns true if "low" appears anywhere in the input string.

starts-with($input.parameters, ‘low’)

starts-with(bpws:getVariableData('input','parameters'), ‘low’)

Returns true only if the input starts with the characters "low", whether or not there are any other characters after those.