| /* |
| * 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.carbondata.common.annotations; |
| |
| import java.lang.annotation.Documented; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| |
| /** |
| * This annotation is ported and modified from Apache Hadoop project. |
| * |
| * Annotation to inform users of how much to rely on a particular package, |
| * class or method not changing over time. Currently the stability can be |
| * {@link Stable}, {@link Evolving} or {@link Unstable}. <br> |
| * |
| * 1. {@link Stable} means compatibility can break only at major release (m.0) |
| * 2. {@link Evolving} means compatibility can break at minor release (m.x) |
| * 3. {@link Unstable} means compatibility can break at any release |
| * |
| * <ul><li>All classes that are annotated with {@link InterfaceAudience.User} or |
| * {@link InterfaceAudience.Developer} must have InterfaceStability annotation. </li> |
| * <li>Classes that are {@link InterfaceAudience.Internal} are to be considered unstable unless |
| * a different InterfaceStability annotation states otherwise.</li> |
| * <li>Incompatible changes must not be made to classes marked as stable.</li> |
| * </ul> |
| */ |
| @InterfaceAudience.User |
| @org.apache.hadoop.classification.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 { } |
| } |