feat: Add HasRowIdMapping interface (#1288)

common/src/main/java/org/apache/comet/vector/HasRowIdMapping.java

@@ -0,0 +1,39 @@
+/*
+ * 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.comet.vector;
+
+/**
+ * An interface could be implemented by vectors that have row id mapping.
+ *
+ * <p>For example, Iceberg's DeleteFile has a row id mapping to map row id to position. This
+ * interface is used to set and get the row id mapping. The row id mapping is an array of integers,
+ * where the index is the row id and the value is the position. Here is an example:
+ * [0,1,2,3,4,5,6,7] -- Original status of the row id mapping array Position delete 2, 6
+ * [0,1,3,4,5,7,-,-] -- After applying position deletes [Set Num records to 6]
+ */
+public interface HasRowIdMapping {
+  default void setRowIdMapping(int[] rowIdMapping) {
+    throw new UnsupportedOperationException("setRowIdMapping is not supported");
+  }
+
+  default int[] getRowIdMapping() {
+    throw new UnsupportedOperationException("getRowIdMapping is not supported");
+  }
+}