A value object that defines a specification for a flow variable. Encapsulates
information about the variable and the behavior necessary to create a new
variable instance in a flow execution scope.
author: Keith Donald
createVariableValue(RequestContext context) Hook method that needs to be implemented by subclasses to calculate the
value of this flow variable based on the information available in the
request context.
Hook method that needs to be implemented by subclasses to calculate the
value of this flow variable based on the information available in the
request context.
Parameters: context - the flow execution request context the flow variable value