Your client application can use the BrokerAdminClient.setEventTypeInfoset method to modify an event type's infoset. Your application must first obtain and modify (or create and initialize) a BrokerEvent object that represents the infoset and provide it as a parameter to this method, along with the event type name and infoset name. If your infoset name already exists for the event type name you specify, it will be updated. If it does not exist, it will be created.