1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.logging.log4j.core.config.plugins;
19
20 import java.lang.annotation.Annotation;
21 import java.lang.annotation.Documented;
22 import java.lang.annotation.ElementType;
23 import java.lang.annotation.Retention;
24 import java.lang.annotation.RetentionPolicy;
25 import java.lang.annotation.Target;
26
27 import org.apache.logging.log4j.core.config.plugins.visitors.PluginVisitor;
28
29 /**
30 * Meta-annotation to denote the class name to use that implements
31 * {@link org.apache.logging.log4j.core.config.plugins.visitors.PluginVisitor} for the annotated annotation.
32 */
33 @Documented
34 @Retention(RetentionPolicy.RUNTIME)
35 @Target(ElementType.ANNOTATION_TYPE)
36 public @interface PluginVisitorStrategy {
37
38 /**
39 * The class to use that implements {@link org.apache.logging.log4j.core.config.plugins.visitors.PluginVisitor}
40 * for the given annotation. The generic type in {@code PluginVisitor} should match the annotation this annotation
41 * is applied to.
42 */
43 Class<? extends PluginVisitor<? extends Annotation>> value();
44 }