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

Constructor Summary

Constructors

Constructor and Description
HistoricalIndexLookupStrategyComposite()

Method Summary

Modifier and Type	Method and 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

Constructor Detail

HistoricalIndexLookupStrategyComposite

public HistoricalIndexLookupStrategyComposite()

Method Detail

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()