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;
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     * Identifies the relative ordering of a {@link ConfigurationFactory} plugin.
026     *
027     * @see OrderComparator
028     */
029    // TODO: 2.2+ use this annotation for all @Plugin classes
030    @Retention(RetentionPolicy.RUNTIME)
031    @Target(ElementType.TYPE)
032    public @interface Order {
033        /**
034         * The priority of this annotated type. Larger numbers indicate lower priority with a lowest priority of
035         * {@link Integer#MAX_VALUE}.
036         */
037        int value();
038    }