/**************************************************************************************
* 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.event.arr;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.client.PropertyAccessException;
import com.espertech.esper.event.BaseNestableEventUtil;
/**
* A getter for use with Map-based events simply returns the value for the key.
*/
public class ObjectArrayEventBeanPropertyGetter implements ObjectArrayEventPropertyGetter
{
private final int propertyIndex;
/**
* Ctor.
* @param propertyIndex property to get
*/
public ObjectArrayEventBeanPropertyGetter(int propertyIndex) {
this.propertyIndex = propertyIndex;
}
public Object getObjectArray(Object[] array) throws PropertyAccessException
{
Object eventBean = array[propertyIndex];
if (eventBean == null) {
return null;
}
EventBean theEvent = (EventBean) eventBean;
return theEvent.getUnderlying();
}
public boolean isObjectArrayExistsProperty(Object[] array)
{
return true; // Property exists as the property is not dynamic (unchecked)
}
public Object get(EventBean obj)
{
return getObjectArray(BaseNestableEventUtil.checkedCastUnderlyingObjectArray(obj));
}
public boolean isExistsProperty(EventBean eventBean)
{
return true; // Property exists as the property is not dynamic (unchecked)
}
public Object getFragment(EventBean obj)
{
return BaseNestableEventUtil.checkedCastUnderlyingObjectArray(obj)[propertyIndex];
}
}