| /* |
| * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package org.glassfish.j2ee.statistics; |
| |
| /** |
| * The Statistic model and its sub-models specify the data models which are requried to be used to provide the performance data described by the specific attributes in the Stats models. |
| */ |
| public interface Statistic { |
| /** |
| * The name of this Statistic. |
| */ |
| String getName(); |
| |
| /** |
| * The unit of measurement for this Statistic. |
| * Valid values for TimeStatistic measurements are "HOUR", "MINUTE", "SECOND", "MILLISECOND", "MICROSECOND" and "NANOSECOND". |
| */ |
| String getUnit(); |
| |
| /** |
| * A human-readable description of the Statistic. |
| */ |
| String getDescription(); |
| |
| /** |
| * The time of the first measurement represented as a long, whose value is the number of milliseconds since January 1, 1970, 00:00:00. |
| */ |
| long getStartTime(); |
| |
| /** |
| * The time of the last measurement represented as a long, whose value is the number of milliseconds since January 1, 1970, 00:00:00. |
| */ |
| long getLastSampleTime(); |
| } |