001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements. See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache license, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License. You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the license for the specific language governing permissions and
015     * limitations under the license.
016     */
017    package org.apache.logging.log4j.core.config.plugins;
018    
019    import java.lang.annotation.ElementType;
020    import java.lang.annotation.Retention;
021    import java.lang.annotation.RetentionPolicy;
022    import java.lang.annotation.Target;
023    
024    /**
025     * Annotation that identifies a Class as a Plugin.
026     */
027    @Retention(RetentionPolicy.RUNTIME)
028    @Target(ElementType.TYPE)
029    public @interface Plugin {
030        /**
031         * Value of the elementType when none is specified.
032         */
033        String EMPTY = "";
034    
035        String name();
036        String type();
037        String elementType() default EMPTY;
038        boolean printObject() default false;
039        boolean deferChildren() default false;
040    }