Package com.espertech.esper.common.internal.epl.historical.lookupstrategy

Class HistoricalIndexLookupStrategyHash

java.lang.Object

com.espertech.esper.common.internal.epl.historical.lookupstrategy.HistoricalIndexLookupStrategyHash

All Implemented Interfaces:

HistoricalIndexLookupStrategy

public class HistoricalIndexLookupStrategyHash
extends Object
implements HistoricalIndexLookupStrategy

Field Summary

Fields

Modifier and Type	Field	Description
static final EPTypeClass	EPTYPE

Constructor Summary

Constructors

Constructor	Description
HistoricalIndexLookupStrategyHash()

Method Summary

Modifier and Type	Method	Description
Iterator<EventBean>	lookup(EventBean lookupEvent, EventTable[] index, ExprEvaluatorContext context)	Look up into the index, potentially using some of the properties in the lookup event, returning a partial or full result in respect to the index.
void	setEvaluator(ExprEvaluator evaluator)
void	setLookupStream(int lookupStream)

Methods inherited from class java.lang.Object

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

Field Details

EPTYPE

public static final EPTypeClass EPTYPE

Constructor Details

HistoricalIndexLookupStrategyHash

public HistoricalIndexLookupStrategyHash()

Method Details

lookup

public Iterator<EventBean> lookup(EventBean lookupEvent,
 EventTable[] index,
 ExprEvaluatorContext context)

Description copied from interface: HistoricalIndexLookupStrategy

Look up into the index, potentially using some of the properties in the lookup event, returning a partial or full result in respect to the index.

Specified by:

lookup in interface HistoricalIndexLookupStrategy

Parameters:

lookupEvent - provides properties to use as key values for indexes

index - is the table providing the cache result set, potentially indexed by index fields

context - context

Returns:

full set or partial index iterator

setEvaluator

public void setEvaluator(ExprEvaluator evaluator)

setLookupStream

public void setLookupStream(int lookupStream)