/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.hadoop.hive.common.metrics.common;
/**
* Metrics Scope to represent duration of an event.
*
* Implementation can capture information like the average duration of open scopes,
* number of open scopes, number of completed scopes.
*
* Scopes are created via the Metrics framework (see Metrics#createScope or Metrics$createStoredScope)
*
* Scope may be stored by the Metrics framework via 'storedScope' concept for further reference.
*
* In either case, it is the caller's responsibility to end the scope via the Metrics framework (see Metrics#endScope)
*/
public interface MetricsScope {
}