Right now we have "=", "starts with", "ends with" and "contains", we should have "!=" too. Arguably you could negate all of the conditions above, but "!=" was the one a customer asked for specifically.
charles, do you mean adding another substring function: resource.name.notContains = "RHQ" or do you want a new operator: resource.name != "RHQ"
See case 268166 for more details.
to do this properly, i'd have to support the logical opposite of all operators today, which is startsWith, endsWith, contains, and ==
This bug was previously known as http://jira.rhq-project.org/browse/RHQ-1613
It's unclear what this pertains to anymore, a new RFE should be generated as needed.