/**************************************************************************************
* 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.core.service;
import com.espertech.esper.core.context.util.EPStatementAgentInstanceHandle;
import com.espertech.esper.filter.FilterHandle;
import com.espertech.esper.filter.FilterHandleCallback;
import com.espertech.esper.schedule.ScheduleHandle;
import com.espertech.esper.schedule.ScheduleHandleCallback;
/**
* Statement resource handle and callback for use with {@link com.espertech.esper.filter.FilterService} and
* {@link com.espertech.esper.schedule.SchedulingService}.
* <p>
* Links the statement handle identifying a statement and containing the statement resource lock,
* with the actual callback to invoke for a statement together.
*/
public class EPStatementHandleCallback implements FilterHandle, ScheduleHandle
{
private EPStatementAgentInstanceHandle agentInstanceHandle;
private FilterHandleCallback filterCallback;
private ScheduleHandleCallback scheduleCallback;
/**
* Ctor.
* @param agentInstanceHandle is a statement handle
* @param callback is a filter callback
*/
public EPStatementHandleCallback(EPStatementAgentInstanceHandle agentInstanceHandle, FilterHandleCallback callback)
{
this.agentInstanceHandle = agentInstanceHandle;
this.filterCallback = callback;
}
/**
* Ctor.
* @param agentInstanceHandle is a statement handle
* @param callback is a schedule callback
*/
public EPStatementHandleCallback(EPStatementAgentInstanceHandle agentInstanceHandle, ScheduleHandleCallback callback)
{
this.agentInstanceHandle = agentInstanceHandle;
this.scheduleCallback = callback;
}
public String getStatementId()
{
return agentInstanceHandle.getStatementId();
}
/**
* Returns the statement handle.
* @return handle containing a statement resource lock
*/
public EPStatementAgentInstanceHandle getAgentInstanceHandle()
{
return agentInstanceHandle;
}
/**
* Returns the statement filter callback, or null if this is a schedule callback handle.
* @return filter callback
*/
public FilterHandleCallback getFilterCallback()
{
return filterCallback;
}
/**
* Returns the statement schedule callback, or null if this is a filter callback handle.
* @return schedule callback
*/
public ScheduleHandleCallback getScheduleCallback()
{
return scheduleCallback;
}
public void setScheduleCallback(ScheduleHandleCallback scheduleCallback) {
this.scheduleCallback = scheduleCallback;
}
}