Package io.siddhi.core.query.selector

Class GroupByKeyGenerator

java.lang.Object

io.siddhi.core.query.selector.GroupByKeyGenerator

public class GroupByKeyGenerator
extends Object

Class to generate keys for GroupBy groups

Constructor Summary

Constructors

Constructor	Description
GroupByKeyGenerator(List<io.siddhi.query.api.expression.Expression> groupByList, MetaComplexEvent metaComplexEvent, int currentState, Map<String,Table> tableMap, List<VariableExpressionExecutor> executors, SiddhiQueryContext siddhiQueryContext)

Method Summary

Modifier and Type	Method	Description
String	constructEventKey(ComplexEvent event)	generate groupBy key of a streamEvent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GroupByKeyGenerator

public GroupByKeyGenerator(List<io.siddhi.query.api.expression.Expression> groupByList,
                           MetaComplexEvent metaComplexEvent,
                           int currentState,
                           Map<String,Table> tableMap,
                           List<VariableExpressionExecutor> executors,
                           SiddhiQueryContext siddhiQueryContext)

Method Detail

constructEventKey

public String constructEventKey(ComplexEvent event)

generate groupBy key of a streamEvent

Parameters:

event - complexEvent

Returns:

GroupByKey