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

Class HistoricalIndexLookupStrategyComposite

java.lang.Object

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

All Implemented Interfaces:

HistoricalIndexLookupStrategy

public class HistoricalIndexLookupStrategyComposite
extends Object
implements HistoricalIndexLookupStrategy

Field Summary

Fields

Modifier and Type	Field	Description
static final EPTypeClass	EPTYPE

Constructor Summary

Constructors

Constructor	Description
HistoricalIndexLookupStrategyComposite()

Method Summary

Modifier and Type	Method	Description
void	init()
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	setChain(CompositeIndexQuery chain)
void	setHashGetter(ExprEvaluator hashGetter)
void	setLookupStream(int lookupStream)
void	setRangeProps(QueryGraphValueEntryRange[] rangeProps)

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

HistoricalIndexLookupStrategyComposite

public HistoricalIndexLookupStrategyComposite()

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

setLookupStream

public void setLookupStream(int lookupStream)

setHashGetter

public void setHashGetter(ExprEvaluator hashGetter)

setRangeProps

public void setRangeProps(QueryGraphValueEntryRange[] rangeProps)

setChain

public void setChain(CompositeIndexQuery chain)

init

public void init()