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The Apache Log4j Implementation

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache license, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the license for the specific language governing permissions and
 * limitations under the license.
 */
package org.apache.logging.log4j.core.config;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Identifies the relative ordering of a {@link ConfigurationFactory} plugin.
 *
 * @see OrderComparator
 */
// TODO: 2.2+ use this annotation for all @Plugin classes
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface Order {
    /**
     * The priority of this annotated type. Larger numbers indicate higher priority with a highest priority of
     * {@link Integer#MAX_VALUE}.
     */
    int value();
}