001// Copyright 2008, 2009 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.annotations;
016
017import java.lang.annotation.*;
018
019import static org.apache.tapestry5.ioc.annotations.AnnotationUseContext.*;
020import org.apache.tapestry5.ioc.annotations.UseWith;
021
022/**
023 * Marker annotation for component methods to enable debug-level logging. Annotated methods will log method entry (with
024 * parameters), method exit (with return value, for non-void methods) and any thrown exceptions.
025 *
026 * @see org.apache.tapestry5.internal.transform.LogWorker
027 */
028@Target(ElementType.METHOD)
029@Retention(RetentionPolicy.RUNTIME)
030@Documented
031@UseWith({COMPONENT,MIXIN,PAGE})
032public @interface Log
033{
034}