Details
Minor Description
When using any asynchronous subscription using a filter other than find_service notifications are sent regularly at the specified notifcationInterval regardless of whether or not there is actually a change to the applicable entities. This is not the case when using a find_service subscriptionFilter, notifications are only sent when changes are made to the applicable entities. Which of these is the intended behavior? The specification is vague on this issue, stating in one place that "When asynchronous notifications are requested, subscriptions provide information on new, changed or deleted entities within a registry that occur after the point in time that the subscription is registered" (Section 5.5.1) but states that notificationIntervals "specifies how often change notifications are to be provided to a subscriber." (Section 5.5.8.2). Other products tend to follow the model jUDDI follows when using a non find_service filter (i.e. sending a notification at every notificationInterval).