[GitHub] [iceberg] amogh-jahagirdar commented on a diff in pull request #6449: Delta: Support Snapshot Delta Lake Table to Iceberg Table

["amogh-jahagirdar (via GitHub)" <gi...@apache.org>]

amogh-jahagirdar commented on code in PR #6449:
URL: https://github.com/apache/iceberg/pull/6449#discussion_r1059510877


##########
delta-lake/src/main/java/org/apache/iceberg/delta/SupportMigrationFromDeltaLake.java:
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@@ -0,0 +1,32 @@
+/*
+ * 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.delta;
+
+/**
+ * An API that should be implemented by query engine integrations that want to support migration
+ * from Delta Lake table to Iceberg table.
+ */
+public interface SupportMigrationFromDeltaLake {
+
+  /** Initiates an action to migrate an existing Delta Lake table to Iceberg. */
+  default MigrateDeltaLakeTable migrateDeltaLakeTable(String tableIdent, String deltaS3Location) {
+    throw new UnsupportedOperationException(
+        this.getClass().getName() + " does not implement migrateDeltaLakeTable");
+  }

Review Comment:
   I've lost context on this PR do we need this public interface right now? I would think we could add it when there comes an implementation for another engine just to avoid having a public interface until it's truly needed.



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