/** * Helios, OpenSource Monitoring * Brought to you by the Helios Development Group * * Copyright 2007, Helios Development Group and individual contributors * as indicated by the @author tags. See the copyright.txt file in the * distribution for a full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. * */ package org.helios.apmrouter.instrumentation; import java.lang.annotation.*; /** * <p>Title: Trace</p> * <p>Description: AOP instrumentation directive</p> * <p>Company: Helios Development Group LLC</p> * @author Whitehead (nwhitehead AT heliosdev DOT org) * <p><code>org.helios.apmrouter.instrumentation.Trace</code></p> */ @Target(ElementType.METHOD) @Retention(RetentionPolicy.RUNTIME) @Documented public @interface Trace { /** * Specifies a TXContext operation */ public TXDirective txcontext() default TXDirective.NOOP; /** * Specifies the metric name */ public String name() default ""; /** * Specifies the metric name */ public String[] namespace() default {}; /** * Specifies the runtime performance data points that will be measured on an intercepted method */ public TraceCollection[] collections() default {}; /** * Specifies the dynamic script that an object reference will be passed to for trace processing. */ public String script() default ""; /** * Defines an expression that navigates to an {@link AccessibleObjectReference} and extracts it, passing it on for trace processing */ public String accessible() default ""; }