rdblue commented on a change in pull request #4071:
URL: https://github.com/apache/iceberg/pull/4071#discussion_r835975704



##########
File path: 
core/src/main/java/org/apache/iceberg/UpdateSnapshotReferencesOperation.java
##########
@@ -0,0 +1,198 @@
+/*
+ * 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;
+
+import java.util.Map;
+import org.apache.iceberg.exceptions.ValidationException;
+import org.apache.iceberg.relocated.com.google.common.base.Preconditions;
+import org.apache.iceberg.relocated.com.google.common.collect.Maps;
+
+class UpdateSnapshotReferencesOperation implements PendingUpdate<Map<String, 
SnapshotRef>> {

Review comment:
       Can you add a `TODO` comment to move the operations in 
`SetSnapshotOperation` to this class? I don't think that needs to be done as 
part of this commit, but we should do it eventually.
   
   That operation handles `setCurrentSnapshot`, `rollbackToTime`, and 
`rollbackTo`, which are all operations that this class could handle by updating 
the set of refs. Also, `rollbackTo` could have a branch version, 
`rollback(String name, long snapshotId)` that would validate the ref is a 
branch and validate that the snapshot is an ancestor before updating the ref.




-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]



---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to