The HistoryQueryListener listens for changes in the result of a given HistoryQuery.
When searching into the history a ProgressEvent is fired whenever the progress is changed.
The HistoryQueryStatusEvent is triggered each time a HistoryQuery changes its status.
The HistoryRecordEvent indicates that a HistoryRecords has been received as a result of a HistoryQuery.
A "ProgressEvent" event gets delivered through the search process of HistoryReader Service.
Jitsi, the OpenSource Java VoIP and Instant Messaging client.
Distributable under Apache license.