• A simple implementation of incremental mode. Using this mode may cause some documents that have already been alerted to trigger another alert. When each document is analyzed, an analysis timestamp is attached to this document. When triggering the alert query, the criteria "analysis_timestamp > (PREVIOUS_ALERT_TRIGGER_TIMESTAMP - OFFSET)" is added to the user query. PREVIOUS_ALERT_TRIGGER_TIMESTAMP is then set to the current timestamp. The OFFSET is required to account for the time delta between the moment a document is analyzed and the moment it is available for queries.
Name of the Mashup-API page parameter to send the ELLQL query for timestamp restriction
timestampOffsetS
long
900
Negative offset in seconds on the previous trigger timestamp, to account for the time delta between the moment a document is analyzed and the moment it is available for queries.