content: /*
   * 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.calcite.schema;
  
  import org.apache.calcite.plan.RelOptCluster;
  import org.apache.calcite.plan.RelOptTable;
  import org.apache.calcite.prepare.Prepare;
  import org.apache.calcite.rel.RelNode;
  import org.apache.calcite.rel.core.TableModify;
  import org.apache.calcite.rex.RexNode;
  
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  import java.util.Collection;
  import java.util.List;
  
  /**
   * A table that can be modified.
   *
   * <p>NOTE: The current API is inefficient and experimental. It will change
   * without notice.
   *
   * @see ModifiableView
   */
  public interface ModifiableTable extends QueryableTable {
    /** Returns the modifiable collection.
     * Modifying the collection will change the table's contents. */
    @Nullable Collection getModifiableCollection();
  
    /** Creates a relational expression that modifies this table. */
    TableModify toModificationRel(
        RelOptCluster cluster,
        RelOptTable table,
        Prepare.CatalogReader catalogReader,
        RelNode child,
        TableModify.Operation operation,
        @Nullable List<String> updateColumnList,
        @Nullable List<RexNode> sourceExpressionList,
        boolean flattened);
  }
  