func (rulesMap RulesMap) Match(eventName Name, objectName string) TargetIDSet {
	return rulesMap[eventName].Match(objectName)
}

// NewRulesMap - creates new rules map with given values.
func NewRulesMap(eventNames []Name, pattern string, targetID TargetID) RulesMap {
	// If pattern is empty, add '*' wildcard to match all.
	if pattern == "" {
		pattern = "*"
	}