/*
* Copyright 2012-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.actuate.metrics.export;
/**
* Generic interface for metric exports. As you scale up metric collection you will often
* need to buffer metric data locally and export it periodically (e.g. for aggregation
* across a cluster), so this is the marker interface for those operations. The trigger of
* an export operation might be periodic or event driven, but it remains outside the scope
* of this interface. You might for instance create an instance of an Exporter and trigger
* it using a {@code @Scheduled} annotation in a Spring ApplicationContext.
*
* @author Dave Syer
* @since 1.3.0
*/
@FunctionalInterface
public interface Exporter {
/**
* Export metric data.
*/
void export();
}