ExprEvaluatorEnumeration.java

/**************************************************************************************
 * Copyright (C) 2008 EsperTech, Inc. All rights reserved.                            *
 * http://esper.codehaus.org                                                          *
 * 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.epl.expression;

import com.espertech.esper.client.EventBean;
import com.espertech.esper.client.EventType;
import com.espertech.esper.event.EventAdapterService;

import java.util.Collection;

/**
 * Interface for evaluating of an event tuple.
 */
public interface ExprEvaluatorEnumeration
{
    public EventType getEventTypeCollection(EventAdapterService eventAdapterService) throws ExprValidationException;
    public Collection<EventBean> evaluateGetROCollectionEvents(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context);

    public Class getComponentTypeCollection() throws ExprValidationException;
    public Collection evaluateGetROCollectionScalar(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context);

    public EventType getEventTypeSingle(EventAdapterService eventAdapterService, String statementId) throws ExprValidationException;
    public EventBean evaluateGetEventBean(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context);
}