/*
***************************************************************************************
* 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.example.virtualdw;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.client.hook.VirtualDataWindowContext;
import com.espertech.esper.client.hook.VirtualDataWindowLookup;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class SampleVirtualDataWindowLookup implements VirtualDataWindowLookup {
private final VirtualDataWindowContext context;
public SampleVirtualDataWindowLookup(VirtualDataWindowContext context) {
this.context = context;
}
public Set<EventBean> lookup(Object[] keys, EventBean[] eventsPerStream) {
// Add code to interogate lookup-keys here.
// Create sample event.
Map<String, Object> eventData = new HashMap<String, Object>();
eventData.put("key1", "sample1");
eventData.put("key2", "sample2");
eventData.put("value1", 100);
eventData.put("value2", 1.5d);
EventBean theEvent = context.getEventFactory().wrap(eventData);
return Collections.singleton(theEvent);
}
}