com.espertech.esper.common.internal.epl.join.base

Interface JoinExecutionStrategy

All Known Implementing Classes:

JoinExecutionStrategyImpl

public interface JoinExecutionStrategy

Strategy for executing a join.

Method Summary

Modifier and Type	Method and Description
void	join(EventBean[][] newDataPerStream, EventBean[][] oldDataPerStream) Execute join.
Set<MultiKeyArrayOfKeys<EventBean>>	staticJoin() A static join is for use with iterating over join statements.

Method Detail

join

void join(EventBean[][] newDataPerStream,
          EventBean[][] oldDataPerStream)

Execute join. The first dimension in the 2-dim arrays is the stream that generated the events, and the second dimension is the actual events generated.

Parameters:

newDataPerStream - - new events for each stream

oldDataPerStream - - old events for each stream

staticJoin

Set<MultiKeyArrayOfKeys<EventBean>> staticJoin()

A static join is for use with iterating over join statements.

Returns:

set of rows, each row with two or more events, one for each stream