Package org.hibernate.service.jdbc.dialect.internal

Source Code of org.hibernate.service.jdbc.dialect.internal.StandardDialectResolver

/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors.  All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA  02110-1301  USA
*/
package org.hibernate.service.jdbc.dialect.internal;

import java.sql.DatabaseMetaData;
import java.sql.SQLException;

import org.hibernate.dialect.CUBRIDDialect;
import org.hibernate.dialect.DB2Dialect;
import org.hibernate.dialect.DerbyDialect;
import org.hibernate.dialect.DerbyTenFiveDialect;
import org.hibernate.dialect.DerbyTenSevenDialect;
import org.hibernate.dialect.DerbyTenSixDialect;
import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.H2Dialect;
import org.hibernate.dialect.HSQLDialect;
import org.hibernate.dialect.InformixDialect;
import org.hibernate.dialect.Ingres10Dialect;
import org.hibernate.dialect.Ingres9Dialect;
import org.hibernate.dialect.IngresDialect;
import org.hibernate.dialect.MySQLDialect;
import org.hibernate.dialect.Oracle10gDialect;
import org.hibernate.dialect.Oracle8iDialect;
import org.hibernate.dialect.Oracle9iDialect;
import org.hibernate.dialect.PostgreSQL81Dialect;
import org.hibernate.dialect.PostgreSQL82Dialect;
import org.hibernate.dialect.SQLServer2005Dialect;
import org.hibernate.dialect.SQLServer2008Dialect;
import org.hibernate.dialect.SQLServerDialect;
import org.hibernate.dialect.SybaseASE15Dialect;
import org.hibernate.dialect.SybaseAnywhereDialect;
import org.hibernate.internal.CoreMessageLogger;
import org.jboss.logging.Logger;

/**
* The standard Hibernate Dialect resolver.
*
* @author Steve Ebersole
*/
public class StandardDialectResolver extends AbstractDialectResolver {

    private static final CoreMessageLogger LOG = Logger.getMessageLogger(CoreMessageLogger.class,
                                                                       StandardDialectResolver.class.getName());

  @Override
    protected Dialect resolveDialectInternal(DatabaseMetaData metaData) throws SQLException {
    String databaseName = metaData.getDatabaseProductName();
    int databaseMajorVersion = metaData.getDatabaseMajorVersion();

    if ( "CUBRID".equalsIgnoreCase( databaseName ) ) {
      return new CUBRIDDialect();
    }

    if ( "HSQL Database Engine".equals( databaseName ) ) {
      return new HSQLDialect();
    }

    if ( "H2".equals( databaseName ) ) {
      return new H2Dialect();
    }

    if ( "MySQL".equals( databaseName ) ) {
      return new MySQLDialect();
    }

    if ( "PostgreSQL".equals( databaseName ) ) {
      final int databaseMinorVersion = metaData.getDatabaseMinorVersion();
      if (databaseMajorVersion >= 8 && databaseMinorVersion >= 2) {
        return new PostgreSQL82Dialect();
      }
      return new PostgreSQL81Dialect();
    }

    if ( "Apache Derby".equals( databaseName ) ) {
      final int databaseMinorVersion = metaData.getDatabaseMinorVersion();
            if ( databaseMajorVersion > 10 || ( databaseMajorVersion == 10 && databaseMinorVersion >= 7 ) ) {
        return new DerbyTenSevenDialect();
      }
      else if ( databaseMajorVersion == 10 && databaseMinorVersion == 6 ) {
        return new DerbyTenSixDialect();
      }
      else if ( databaseMajorVersion == 10 && databaseMinorVersion == 5 ) {
        return new DerbyTenFiveDialect();
      }
      else {
        return new DerbyDialect();
      }
    }

    if ( "ingres".equalsIgnoreCase( databaseName ) ) {
            switch( databaseMajorVersion ) {
                case 9:
                    int databaseMinorVersion = metaData.getDatabaseMinorVersion();
                    if (databaseMinorVersion > 2) {
                        return new Ingres9Dialect();
                    }
                    return new IngresDialect();
                case 10:
                    return new Ingres10Dialect();
                default:
                    LOG.unknownIngresVersion(databaseMajorVersion);
            }
      return new IngresDialect();
    }

    if ( databaseName.startsWith( "Microsoft SQL Server" ) ) {
      switch ( databaseMajorVersion ) {
                case 8:
                    return new SQLServerDialect();
                case 9:
                    return new SQLServer2005Dialect();
                case 10:
                    return new SQLServer2008Dialect();
                default:
                    LOG.unknownSqlServerVersion(databaseMajorVersion);
      }
      return new SQLServerDialect();
    }

    if ( "Sybase SQL Server".equals( databaseName ) || "Adaptive Server Enterprise".equals( databaseName ) ) {
      return new SybaseASE15Dialect();
    }

    if ( databaseName.startsWith( "Adaptive Server Anywhere" ) ) {
      return new SybaseAnywhereDialect();
    }

    if ( "Informix Dynamic Server".equals( databaseName ) ) {
      return new InformixDialect();
    }

    if ( databaseName.startsWith( "DB2/" ) ) {
      return new DB2Dialect();
    }

    if ( "Oracle".equals( databaseName ) ) {
      switch ( databaseMajorVersion ) {
        case 11:
          return new Oracle10gDialect();
        case 10:
          return new Oracle10gDialect();
        case 9:
          return new Oracle9iDialect();
        case 8:
          return new Oracle8iDialect();
        default:
                    LOG.unknownOracleVersion(databaseMajorVersion);
      }
    }

    return null;
  }
}
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