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;
  
  import org.apache.calcite.sql.parser.SqlParserPos;
  import org.apache.calcite.sql.type.SqlTypeName;
  
  import java.util.UUID;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * A SQL literal representing an UUID value, for example <code>UUID
   * '123e4567-e89b-12d3-a456-426655440000'</code>.
   *
   * <p>Create values using {@link SqlLiteral#createUuid}.
   */
  public class SqlUuidLiteral extends SqlLiteral {
    //~ Constructors -----------------------------------------------------------
  
    public SqlUuidLiteral(UUID t, SqlParserPos pos) {
      super(t, SqlTypeName.UUID, pos);
    }
  
    //~ Methods ----------------------------------------------------------------
  
    @Override public SqlUuidLiteral clone(SqlParserPos pos) {
      return new SqlUuidLiteral(getUuid(), pos);
    }
  
    public UUID getUuid() {
      return (UUID) requireNonNull(value, "value");
    }
  
    @Override public String toString() {
      return "UUID '" + toFormattedString() + "'";
    }
  
    public String toFormattedString() {
      return getUuid().toString();
    }
  
    @Override public void unparse(
        SqlWriter writer,
        int leftPrec,
        int rightPrec) {
      writer.literal(this.toString());
    }
  }
  