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.sql.babel;
  
  import org.apache.calcite.sql.SqlIdentifier;
  import org.apache.calcite.sql.SqlNode;
  import org.apache.calcite.sql.SqlNodeList;
  import org.apache.calcite.sql.SqlWriter;
  import org.apache.calcite.sql.ddl.SqlCreateTable;
  import org.apache.calcite.sql.parser.SqlParserPos;
  
  /**
   * Parse tree for {@code CREATE TABLE} statement, with extensions for particular
   * SQL dialects supported by Babel.
   */
  public class SqlBabelCreateTable extends SqlCreateTable {
    private final TableCollectionType tableCollectionType;
    // CHECKSTYLE: IGNORE 2; can't use 'volatile' because it is a Java keyword
    // but checkstyle does not like trailing '_'.
    private final boolean volatile_;
  
    /** Creates a SqlBabelCreateTable. */
    public SqlBabelCreateTable(SqlParserPos pos, boolean replace,
        TableCollectionType tableCollectionType, boolean volatile_,
        boolean ifNotExists, SqlIdentifier name, SqlNodeList columnList,
        SqlNode query) {
      super(pos, replace, ifNotExists, name, columnList, query);
      this.tableCollectionType = tableCollectionType;
      this.volatile_ = volatile_;
    }
  
    @Override public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
      writer.keyword("CREATE");
      switch (tableCollectionType) {
      case SET:
        writer.keyword("SET");
        break;
      case MULTISET:
        writer.keyword("MULTISET");
        break;
      default:
        break;
      }
      if (volatile_) {
        writer.keyword("VOLATILE");
      }
      writer.keyword("TABLE");
      if (ifNotExists) {
        writer.keyword("IF NOT EXISTS");
      }
      name.unparse(writer, leftPrec, rightPrec);
      if (columnList != null) {
        SqlWriter.Frame frame = writer.startList("(", ")");
        for (SqlNode c : columnList) {
          writer.sep(",");
          c.unparse(writer, 0, 0);
        }
        writer.endList(frame);
      }
      if (query != null) {
        writer.keyword("AS");
        writer.newlineAndIndent();
        query.unparse(writer, 0, 0);
      }
    }
  }
  