/**
 * 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.storm.annotation;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * Annotation to inform users of how much to rely on a particular package, class or method not changing over time.
 */
@InterfaceStability.Evolving
public class InterfaceStability {
    /**
     * Can evolve while retaining compatibility for minor release boundaries.; can break compatibility only at major release (ie. at m.0).
     */
    @Documented
    @Retention(RetentionPolicy.RUNTIME)
    public @interface Stable {
    }

    ;

    /**
     * Evolving, but can break compatibility at minor release (i.e. m.x)
     */
    @Documented
    @Retention(RetentionPolicy.RUNTIME)
    public @interface Evolving {
    }

    ;

    /**
     * No guarantee is provided as to reliability or stability across any level of release granularity.
     */
    @Documented
    @Retention(RetentionPolicy.RUNTIME)
    public @interface Unstable {
    }

    ;
}

