net.esper.eql.join.exec
Interface TableLookupStrategy
- All Known Implementing Classes:
- FullTableScanLookupStrategy, IndexedTableLookupStrategy
public interface TableLookupStrategy
Strategy for looking up, in some sort of table or index, an event, potentially based on the
events properties, and returning a set of matched events.
lookup
Set<EventBean> lookup(EventBean event)
- Returns matched events for a event to look up for. Never returns an empty result set,
always returns null to indicate no results.
- Parameters:
event
- to look up
- Returns:
- set of matching events, or null if none matching