/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.client;
import com.espertech.esper.client.context.ContextPartitionSelector;
/**
* Interface for a prepared on-demand query that can be executed multiple times.
*/
public interface EPOnDemandPreparedQuery {
/**
* Execute the prepared query returning query results.
*
* @return query result
*/
public EPOnDemandQueryResult execute();
/**
* For use with named windows that have a context declared and that may therefore have multiple context partitions,
* allows to target context partitions for query execution selectively.
*
* @param contextPartitionSelectors selects context partitions to consider
* @return query result
*/
public EPOnDemandQueryResult execute(ContextPartitionSelector[] contextPartitionSelectors);
/**
* Returns the event type, representing the columns of the select-clause.
*
* @return event type
*/
public EventType getEventType();
}