public class FailureSeverity
Defines the severity of a DeltaXMLProcessingException. Depending on the severity, the comparison process may continue or
terminate. The severities also correspond to the three exception reporting methods used in the ErrorListener, so that for
example all DeltaXMLProcessingExceptions reported through the warning method will have Severity WARNING. The code is based on
type-safe enum pattern (See item 21 of Joshua Bloch's 'Effective Java', ISBN: 0201310058).