| /* |
| * 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.iceberg; |
| |
| /** |
| * Data operations that produce snapshots. |
| * <p> |
| * A snapshot can return the operation that created the snapshot to help other components ignore |
| * snapshots that are not needed for some tasks. For example, snapshot expiration does not need to |
| * clean up deleted files for appends, which have no deleted files. |
| */ |
| public class DataOperations { |
| private DataOperations() { |
| } |
| |
| /** |
| * New data is appended to the table and no data is removed or deleted. |
| * <p> |
| * This operation is implemented by {@link AppendFiles}. |
| */ |
| public static final String APPEND = "append"; |
| |
| /** |
| * Files are removed and replaced, without changing the data in the table. |
| * <p> |
| * This operation is implemented by {@link RewriteFiles}. |
| */ |
| public static final String REPLACE = "replace"; |
| |
| /** |
| * New data is added to overwrite existing data. |
| * <p> |
| * This operation is implemented by {@link OverwriteFiles} and {@link ReplacePartitions}. |
| */ |
| public static final String OVERWRITE = "overwrite"; |
| |
| /** |
| * Data is deleted from the table and no data is added. |
| * <p> |
| * This operation is implemented by {@link DeleteFiles}. |
| */ |
| public static final String DELETE = "delete"; |
| } |