/*
***************************************************************************************
* 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. *
***************************************************************************************
*/
/***************************************************************************************
* Attribution Notice
*
* This file is imported from Metrics (https://github.com/codahale/metrics subproject metrics-core).
* Metrics is Copyright (c) 2010-2012 Coda Hale, Yammer.com
* Metrics is Published under Apache Software License 2.0, see LICENSE in root folder.
*
* Thank you for the Metrics developers efforts in making their library available under an Apache license.
* EsperTech incorporates Metrics version 0.2.2 in source code form since Metrics depends on SLF4J
* and this dependency is not possible to introduce for Esper.
* *************************************************************************************
*/
package com.espertech.esper.metrics.codahale_metrics.metrics.core;
import java.util.EventListener;
/**
* Listeners for events from the registry. Listeners must be thread-safe.
*/
public interface MetricsRegistryListener extends EventListener {
/**
* Called when a metric has been added to the {@link MetricsRegistry}.
*
* @param name the name of the {@link Metric}
* @param metric the {@link Metric}
*/
void onMetricAdded(MetricName name, Metric metric);
/**
* Called when a metric has been removed from the {@link MetricsRegistry}.
*
* @param name the name of the {@link Metric}
*/
void onMetricRemoved(MetricName name);
}