Package com.espertech.esper.common.internal.epl.agg.access.linear

Class AggregationAccessorFirstLastIndexWEvalForge

java.lang.Object

com.espertech.esper.common.internal.epl.agg.access.linear.AggregationAccessorFirstLastIndexWEvalForge

All Implemented Interfaces:

AggregationAccessorForge

public class AggregationAccessorFirstLastIndexWEvalForge
extends Object
implements AggregationAccessorForge

Represents the aggregation accessor that provides the result for the "first" and "last" aggregation function with index.

Constructor Summary

Constructors

Constructor	Description
AggregationAccessorFirstLastIndexWEvalForge(int streamNum, ExprForge childNode, ExprForge indexNode, int constant, boolean isFirst)	Ctor.

Method Summary

Modifier and Type	Method	Description
ExprForge	getChildNode()
int	getConstant()
void	getEnumerableEventCodegen(AggregationAccessorForgeGetCodegenContext context)
void	getEnumerableEventsCodegen(AggregationAccessorForgeGetCodegenContext context)
void	getEnumerableScalarCodegen(AggregationAccessorForgeGetCodegenContext context)
ExprForge	getIndexNode()
int	getStreamNum()
void	getValueCodegen(AggregationAccessorForgeGetCodegenContext context)
boolean	isFirst()

Methods inherited from class java.lang.Object

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

Constructor Details

AggregationAccessorFirstLastIndexWEvalForge

public AggregationAccessorFirstLastIndexWEvalForge(int streamNum,
 ExprForge childNode,
 ExprForge indexNode,
 int constant,
 boolean isFirst)

Ctor.

Parameters:

streamNum - stream id

childNode - expression

indexNode - index expression

constant - constant index

isFirst - true if returning first, false for returning last

Method Details

getValueCodegen

public void getValueCodegen(AggregationAccessorForgeGetCodegenContext context)

Specified by:

getValueCodegen in interface AggregationAccessorForge

getEnumerableEventsCodegen

public void getEnumerableEventsCodegen(AggregationAccessorForgeGetCodegenContext context)

Specified by:

getEnumerableEventsCodegen in interface AggregationAccessorForge

getEnumerableEventCodegen

public void getEnumerableEventCodegen(AggregationAccessorForgeGetCodegenContext context)

Specified by:

getEnumerableEventCodegen in interface AggregationAccessorForge

getEnumerableScalarCodegen

public void getEnumerableScalarCodegen(AggregationAccessorForgeGetCodegenContext context)

Specified by:

getEnumerableScalarCodegen in interface AggregationAccessorForge

getStreamNum

public int getStreamNum()

getChildNode

public ExprForge getChildNode()

getIndexNode

public ExprForge getIndexNode()

getConstant

public int getConstant()

isFirst

public boolean isFirst()