api/src/main/java/jakarta/annotation/Priority.java

/*
 * Copyright (c) 2005, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package jakarta.annotation;

import java.lang.annotation.*;
import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.*;

/**
 * The <code>Priority</code> annotation can be applied to classes 
 * or parameters to indicate in what order they should be used.  
 * The effect of using the <code>Priority</code> annotation in
 * any particular instance is defined by other specifications that 
 * define the use of a specific class.
 * <p>
 * For example, the Jakarta Interceptors specification defines the use of
 * priorities on interceptors to control the order in which
 * interceptors are called.</p>
 * <p>
 * Priority values should generally be non-negative, with negative values
 * reserved for special meanings such as "undefined" or "not specified".
 * A specification that defines use of the <code>Priority</code> annotation may define
 * the range of allowed priorities and any priority values with special
 * meaning.</p>
 *
 * @since Common Annotations 1.2
 */
@Target({TYPE,PARAMETER})
@Retention(RUNTIME)
@Documented
public @interface Priority {
    /**
     * The priority value.
     */
    int value();
}