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

Class PollResultIndexingStrategyNoIndex

java.lang.Object

com.espertech.esper.common.internal.epl.historical.indexingstrategy.PollResultIndexingStrategyNoIndex

All Implemented Interfaces:

PollResultIndexingStrategy

public class PollResultIndexingStrategyNoIndex
extends Object
implements PollResultIndexingStrategy

Strategy of indexing that simply builds an unindexed table of poll results.

For use when caching is disabled or when no proper index could be build because no where-clause or on-clause exists or these clauses don't yield indexable columns on analysis.

Field Summary

Fields

Modifier and Type	Field	Description
static final PollResultIndexingStrategyNoIndex	INSTANCE

Fields inherited from interface com.espertech.esper.common.internal.epl.historical.indexingstrategy.PollResultIndexingStrategy

EPTYPE, EPTYPEARRAY

Method Summary

Modifier and Type	Method	Description
EventTable[]	index(List<EventBean> pollResult, boolean isActiveCache, ExprEvaluatorContext exprEvaluatorContext)	Build and index of a poll result.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final PollResultIndexingStrategyNoIndex INSTANCE

Method Details

index

public EventTable[] index(List<EventBean> pollResult,
 boolean isActiveCache,
 ExprEvaluatorContext exprEvaluatorContext)

Description copied from interface: PollResultIndexingStrategy

Build and index of a poll result.

Specified by:

index in interface PollResultIndexingStrategy

Parameters:

pollResult - result of a poll operation

isActiveCache - true to indicate that caching is active and therefore index building makes sense as the index structure is not a throw-away.

exprEvaluatorContext - statement context

Returns:

indexed collection of poll results