EvalInsertWildcardJoin.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.core.eval;

import com.espertech.esper.client.EventBean;
import com.espertech.esper.client.EventType;
import com.espertech.esper.epl.core.SelectExprJoinWildcardProcessorObjectArray;
import com.espertech.esper.epl.core.SelectExprProcessor;
import com.espertech.esper.epl.expression.ExprEvaluatorContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.Map;

public class EvalInsertWildcardJoin extends EvalBaseMap implements SelectExprProcessor {

    private static final Log log = LogFactory.getLog(EvalInsertWildcardJoin.class);

    private final SelectExprProcessor joinWildcardProcessor;

    public EvalInsertWildcardJoin(SelectExprContext selectExprContext, EventType resultEventType, SelectExprProcessor joinWildcardProcessor) {
        super(selectExprContext, resultEventType);
        this.joinWildcardProcessor = joinWildcardProcessor;
    }

    public EventBean processSpecific(Map<String, Object> props, EventBean[] eventsPerStream, boolean isNewData, boolean isSynthesize, ExprEvaluatorContext exprEvaluatorContext)
    {
        EventBean theEvent = joinWildcardProcessor.process(eventsPerStream, isNewData, isSynthesize, exprEvaluatorContext);
        // Using a wrapper bean since we cannot use the same event type else same-type filters match.
        // Wrapping it even when not adding properties is very inexpensive.
        return super.getEventAdapterService().adapterForTypedWrapper(theEvent, props, super.getResultEventType());
    }
}