com.espertech.esper.runtime.internal.kernel.updatedispatch.UpdateDispatchViewNonBlocking Maven / Gradle / Ivy
/*
***************************************************************************************
* 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.runtime.internal.kernel.updatedispatch;
import com.espertech.esper.common.client.EventBean;
import com.espertech.esper.common.client.EventType;
import com.espertech.esper.common.internal.collection.UniformPair;
import com.espertech.esper.common.internal.context.util.StatementDispatchTLEntry;
import com.espertech.esper.common.internal.context.util.StatementResultService;
import com.espertech.esper.common.internal.statement.dispatch.DispatchService;
/**
* Convenience view for dispatching view updates received from a parent view to update listeners
* via the dispatch service.
*/
public class UpdateDispatchViewNonBlocking extends UpdateDispatchViewBase {
/**
* Ctor.
*
* @param dispatchService - for performing the dispatch
* @param statementResultServiceImpl - handles result delivery
* @param eventType event type
*/
public UpdateDispatchViewNonBlocking(EventType eventType, StatementResultService statementResultServiceImpl, DispatchService dispatchService) {
super(eventType, statementResultServiceImpl, dispatchService);
}
public void update(EventBean[] newData, EventBean[] oldData) {
newResult(new UniformPair<>(newData, oldData));
}
public void newResult(UniformPair results) {
StatementDispatchTLEntry dispatchTLEntry = statementResultService.getDispatchTL().get();
statementResultService.indicate(results, dispatchTLEntry);
if (!dispatchTLEntry.isDispatchWaiting()) {
dispatchService.addExternal(this);
dispatchTLEntry.setDispatchWaiting(true);
}
}
}