Constructs a ComponentDescriptor.
Parameters: jbi - the JAXB model for the descriptor. throws: an - IllegalArgumentException if the Jbi passed in not thatfor a component
Get the namespace of the "Configuration" element in the jbi.xml, if one
exists. Return an empty string if a "Configuration" element is not
defined.
the configuration element namespace
Get the the "Configuration" element in the jbi.xml. If the Configuration
element is missing in the jbi.xml a null value is returned
the configuration xml string