/* * Copyright (c) 2016, 2022, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
/** * Event field annotation, specifies that the value is a duration. * <p> * If the annotated value equals {@code Long.MAX_VALUE}, it represents forever. * * @since 9
*/
@MetadataDefinition
@ContentType
@Label("Timespan")
@Description("A duration, measured in nanoseconds by default")
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.FIELD, ElementType.TYPE, ElementType.METHOD}) public @interface Timespan { /** * Unit for ticks.
*/ publicstaticfinal String TICKS = "TICKS"; /** * Unit for seconds.
*/ publicstaticfinal String SECONDS = "SECONDS"; /** * Unit for milliseconds.
*/ publicstaticfinal String MILLISECONDS = "MILLISECONDS"; /** * Unit for nanoseconds.
*/ publicstaticfinal String NANOSECONDS = "NANOSECONDS";
/** * Unit for microseconds.
*/ publicstaticfinal String MICROSECONDS = "MICROSECONDS";
/** * Returns the unit of measure for the time span. * <p> * By default, the unit is nanoseconds. * * @return the time span unit, default {@link #NANOSECONDS}, not {@code null}
*/
String value() default NANOSECONDS;
}
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