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

Interface PollResultIndexingStrategy

All Known Implementing Classes:

PollResultIndexingStrategyComposite, PollResultIndexingStrategyHash, PollResultIndexingStrategyInKeywordMulti, PollResultIndexingStrategyMulti, PollResultIndexingStrategyNoIndex, PollResultIndexingStrategySorted

public interface PollResultIndexingStrategy

A strategy for converting a poll-result into a potentially indexed table.

Some implementations may decide to not index the poll result and simply hold a reference to the result. Other implementations may use predetermined index properties to index the poll result for faster lookup.

Method Summary

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

Method Detail

index

EventTable[] index(List<EventBean> pollResult,
                   boolean isActiveCache,
                   AgentInstanceContext agentInstanceContext)

Build and index of a poll result.

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.

agentInstanceContext - statement context

Returns:

indexed collection of poll results