/*
***************************************************************************************
* 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.epl.core;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.core.ExprEvaluator;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.epl.table.mgmt.TableMetadata;
public class BindProcessorEvaluatorStreamTable implements ExprEvaluator {
private final int streamNum;
private final Class returnType;
private final TableMetadata tableMetadata;
public BindProcessorEvaluatorStreamTable(int streamNum, Class returnType, TableMetadata tableMetadata) {
this.streamNum = streamNum;
this.returnType = returnType;
this.tableMetadata = tableMetadata;
}
public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) {
EventBean theEvent = eventsPerStream[streamNum];
if (theEvent != null) {
return tableMetadata.getEventToPublic().convertToUnd(theEvent, eventsPerStream, isNewData, exprEvaluatorContext);
}
return null;
}
public Class getType() {
return returnType;
}
}