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author | Reynold Xin <rxin@databricks.com> | 2016-10-07 10:24:42 -0700 |
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committer | Reynold Xin <rxin@databricks.com> | 2016-10-07 10:24:42 -0700 |
commit | dd16b52cf785ae06026bd00e8e6bedfffa791f5d (patch) | |
tree | a9f778c0fb26b4854b40b27c5c483c8ba0794694 | |
parent | e56614cba99bfdf5fa8a6c617fdd56eca2b34694 (diff) | |
download | spark-dd16b52cf785ae06026bd00e8e6bedfffa791f5d.tar.gz spark-dd16b52cf785ae06026bd00e8e6bedfffa791f5d.tar.bz2 spark-dd16b52cf785ae06026bd00e8e6bedfffa791f5d.zip |
[SPARK-17800] Introduce InterfaceStability annotation
## What changes were proposed in this pull request?
This patch introduces three new annotations under InterfaceStability:
- Stable
- Evolving
- Unstable
This is inspired by Hadoop's InterfaceStability, and the first step towards switching over to a new API stability annotation framework.
## How was this patch tested?
N/A
Author: Reynold Xin <rxin@databricks.com>
Closes #15374 from rxin/SPARK-17800.
-rw-r--r-- | common/tags/src/main/java/org/apache/spark/annotation/InterfaceStability.java | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/common/tags/src/main/java/org/apache/spark/annotation/InterfaceStability.java b/common/tags/src/main/java/org/apache/spark/annotation/InterfaceStability.java new file mode 100644 index 0000000000..323098f69c --- /dev/null +++ b/common/tags/src/main/java/org/apache/spark/annotation/InterfaceStability.java @@ -0,0 +1,49 @@ +/* + * 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.spark.annotation; + +import java.lang.annotation.Documented; + +/** + * Annotation to inform users of how much to rely on a particular package, + * class or method not changing over time. + */ +public class InterfaceStability { + + /** + * Stable APIs that retain source and binary compatibility within a major release. + * These interfaces can change from one major release to another major release + * (e.g. from 1.0 to 2.0). + */ + @Documented + public @interface Stable {}; + + /** + * APIs that are meant to evolve towards becoming stable APIs, but are not stable APIs yet. + * Evolving interfaces can change from one feature release to another release (i.e. 2.1 to 2.2). + */ + @Documented + public @interface Evolving {}; + + /** + * Unstable APIs, with no guarantee on stability. + * Classes that are unannotated are considered Unstable. + */ + @Documented + public @interface Unstable {}; +} |