com.espertech.esper.epl.join.base
Interface QueryStrategy

All Known Implementing Classes:

ExecNodeQueryStrategy, HistoricalDataQueryStrategy

public interface QueryStrategy

Encapsulates the strategy use to resolve the events for a stream into a tuples of events in a join.

Method Summary

void	lookup(EventBean[] lookupEvents, java.util.Set<MultiKey<EventBean>> joinSet, ExprEvaluatorContext exprEvaluatorContext) Look up events returning tuples of joined events.

Method Detail

lookup

void lookup(EventBean[] lookupEvents,
            java.util.Set<MultiKey<EventBean>> joinSet,
            ExprEvaluatorContext exprEvaluatorContext)

Look up events returning tuples of joined events.

Parameters:

lookupEvents - - events to use to perform the join

joinSet - - result join tuples of events

exprEvaluatorContext - expression evaluation context