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.


Method Summary
 Set<EventBean> lookup(EventBean event)
          Returns matched events for a event to look up for.
 

Method Detail

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