package edu.internet2.middleware.grouper.ext.org.apache.ddlutils.platform.mysql;
   
   /*
    * 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.
   */
  
  import java.sql.Types;
  
  import edu.internet2.middleware.grouper.ext.org.apache.ddlutils.PlatformInfo;
  import edu.internet2.middleware.grouper.ext.org.apache.ddlutils.platform.PlatformImplBase;
  
  /**
   * The platform implementation for MySQL.
   * 
   * @version $Revision: 231306 $
   */
  public class MySqlPlatform extends PlatformImplBase
  {
      /** Database name of this platform. */
      public static final String DATABASENAME     = "MySQL";
      /** The standard MySQL jdbc driver. */
      public static final String JDBC_DRIVER      = "com.mysql.cj.jdbc.Driver";
      /** The old MySQL jdbc driver. */
      public static final String JDBC_DRIVER_OLD  = "org.gjt.mm.mysql.Driver";
      /** The subprotocol used by the standard MySQL driver. */
      public static final String JDBC_SUBPROTOCOL = "mysql";
  
      /**
       * Creates a new platform instance.
       */
      public MySqlPlatform()
      {
          PlatformInfo info = getPlatformInfo();
  
          info.setMaxIdentifierLength(64);
          info.setNullAsDefaultValueRequired(true);
          info.setDefaultValuesForLongTypesSupported(false);
          // see http://dev.mysql.com/doc/refman/4.1/en/example-auto-increment.html
          info.setNonPKIdentityColumnsSupported(false);
          // MySql returns synthetic default values for pk columns
          info.setSyntheticDefaultValueForRequiredReturned(true);
          info.setCommentPrefix("#");
          // Double quotes are only allowed for delimiting identifiers if the server SQL mode includes ANSI_QUOTES 
          info.setDelimiterToken("`");
  
          info.addNativeTypeMapping(Types.ARRAY,         "LONGBLOB",          Types.LONGVARBINARY);
          info.addNativeTypeMapping(Types.BIT,           "TINYINT(1)");
          info.addNativeTypeMapping(Types.BLOB,          "LONGBLOB",          Types.LONGVARBINARY);
          info.addNativeTypeMapping(Types.CLOB,          "LONGTEXT",          Types.LONGVARCHAR);
          info.addNativeTypeMapping(Types.DISTINCT,      "LONGBLOB",          Types.LONGVARBINARY);
          info.addNativeTypeMapping(Types.FLOAT,         "DOUBLE",            Types.DOUBLE);
          info.addNativeTypeMapping(Types.JAVA_OBJECT,   "LONGBLOB",          Types.LONGVARBINARY);
          info.addNativeTypeMapping(Types.LONGVARBINARY, "MEDIUMBLOB");
          info.addNativeTypeMapping(Types.LONGVARCHAR,   "MEDIUMTEXT");
          info.addNativeTypeMapping(Types.NULL,          "MEDIUMBLOB",        Types.LONGVARBINARY);
          info.addNativeTypeMapping(Types.NUMERIC,       "DECIMAL",           Types.DECIMAL);
          info.addNativeTypeMapping(Types.OTHER,         "LONGBLOB",          Types.LONGVARBINARY);
          info.addNativeTypeMapping(Types.REAL,          "FLOAT");
          info.addNativeTypeMapping(Types.REF,           "MEDIUMBLOB",        Types.LONGVARBINARY);
          info.addNativeTypeMapping(Types.STRUCT,        "LONGBLOB",          Types.LONGVARBINARY);
          // Since TIMESTAMP is not a stable datatype yet, and does not support a higher precision
          // than DATETIME (year to seconds) as of MySQL 5, we map the JDBC type here to DATETIME
          // TODO: Make this configurable
          info.addNativeTypeMapping(Types.TIMESTAMP,     "DATETIME");
          // In MySql, TINYINT has only a range of -128 to 127
          info.addNativeTypeMapping(Types.TINYINT,       "SMALLINT",          Types.SMALLINT);
          info.addNativeTypeMapping("BOOLEAN",  "TINYINT(1)", "BIT");
          info.addNativeTypeMapping("DATALINK", "MEDIUMBLOB", "LONGVARBINARY");
  
          info.setDefaultSize(Types.CHAR,      254);
          info.setDefaultSize(Types.VARCHAR,   254);
          info.setDefaultSize(Types.BINARY,    254);
          info.setDefaultSize(Types.VARBINARY, 254);
          
          setSqlBuilder(new MySqlBuilder(this));
          setModelReader(new MySqlModelReader(this));
      }
  
      /**
       * {@inheritDoc}
       */
      public String getName()
      {
          return DATABASENAME;
     }
 }