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.ddl;
  
  import org.apache.calcite.sql.SqlIdentifier;
  import org.apache.calcite.sql.SqlKind;
  import org.apache.calcite.sql.SqlNode;
  import org.apache.calcite.sql.SqlOperator;
  import org.apache.calcite.sql.SqlSpecialOperator;
  import org.apache.calcite.sql.SqlTruncate;
  import org.apache.calcite.sql.SqlWriter;
  import org.apache.calcite.sql.parser.SqlParserPos;
  
  import com.google.common.collect.ImmutableList;
  
  import java.util.List;
  
  /**
   * Parse tree for {@code TRUNCATE TABLE} statement.
   */
  public class SqlTruncateTable extends SqlTruncate {
  
    private static final SqlOperator OPERATOR =
        new SqlSpecialOperator("TRUNCATE TABLE", SqlKind.TRUNCATE_TABLE);
    public final SqlIdentifier name;
    public final boolean continueIdentify;
  
    /**
     * Creates a SqlTruncateTable.
     */
    public SqlTruncateTable(SqlParserPos pos, SqlIdentifier name, boolean continueIdentify) {
      super(OPERATOR, pos);
      this.name = name;
      this.continueIdentify = continueIdentify;
    }
  
    @Override public List<SqlNode> getOperandList() {
      return ImmutableList.of(name);
    }
  
    @Override public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
      writer.keyword("TRUNCATE");
      writer.keyword("TABLE");
      name.unparse(writer, leftPrec, rightPrec);
      if (continueIdentify) {
        writer.keyword("CONTINUE IDENTITY");
      } else {
        writer.keyword("RESTART IDENTITY");
  
      }
    }
  }
  