How to use

configure

method

in

org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl

private static DriverManagerConnectionProviderImpl buildConnectionProvider(Properties props, final boolean allowAggressiveRelease) {
  DriverManagerConnectionProviderImpl connectionProvider = new DriverManagerConnectionProviderImpl() {
    public boolean supportsAggressiveRelease() {
      return allowAggressiveRelease;
    }
  };
  connectionProvider.configure( props );
  return connectionProvider;
}

protected void registerConnectionProvider(String tenantIdentifier, TimeZone timeZone) {
  Properties properties = properties();
  properties.put(
    Environment.URL,
    tenantUrl( properties.getProperty( Environment.URL ), tenantIdentifier )
  );
  DriverManagerConnectionProviderImpl connectionProvider =
      new DriverManagerConnectionProviderImpl();
  connectionProvider.configure( properties );
  connectionProviderMap.put( tenantIdentifier, connectionProvider );
  timeZoneTenantMap.put( tenantIdentifier, timeZone );
}
//end::multitenacy-hibernate-timezone-configuration-registerConnectionProvider-example[]

@Override
public void configure(Map configurationValues) {
  Properties connectionSettings = new Properties();
  transferSetting( Environment.DRIVER, configurationValues, connectionSettings );
  transferSetting( Environment.URL, configurationValues, connectionSettings );
  transferSetting( Environment.USER, configurationValues, connectionSettings );
  transferSetting( Environment.PASS, configurationValues, connectionSettings );
  transferSetting( Environment.ISOLATION, configurationValues, connectionSettings );
  Properties passThroughSettings = ConnectionProviderInitiator.getConnectionProperties( configurationValues );
  if ( passThroughSettings != null ) {
    for ( String setting : passThroughSettings.stringPropertyNames() ) {
      transferSetting( Environment.CONNECTION_PREFIX + '.' + setting, configurationValues, connectionSettings );
    }
  }
  connectionSettings.setProperty( Environment.AUTOCOMMIT, "false" );
  delegate = new DriverManagerConnectionProviderImpl();
  delegate.configure( connectionSettings );
}

protected void registerConnectionProvider(String tenantIdentifier) {
  Properties properties = properties();
  properties.put( Environment.URL,
    tenantUrl(properties.getProperty( Environment.URL ), tenantIdentifier) );
  DriverManagerConnectionProviderImpl connectionProvider =
    new DriverManagerConnectionProviderImpl();
  connectionProvider.configure( properties );
  connectionProviderMap.put( tenantIdentifier, connectionProvider );
}
//end::multitenacy-hibernate-MultiTenantConnectionProvider-example[]

@Override
public void buildEntityManagerFactory() {
  connectionProvider = new DriverManagerConnectionProviderImpl();
  connectionProvider.configure( Environment.getProperties() );
  try(Connection connection = connectionProvider.getConnection();
    Statement statement = connection.createStatement()) {
    statement.execute( "DROP TABLE IF EXISTS roles CASCADE" );
    statement.execute( "CREATE TABLE roles ( id BIGINT NOT NULL PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY )" );
  }
  catch (SQLException e) {
    fail(e.getMessage());
  }
  super.buildEntityManagerFactory();
}

@Before
public void setUp() throws Exception {
  connectionProvider =
      new DriverManagerConnectionProviderImpl();
  connectionProvider.configure( properties() );
  connection = connectionProvider.getConnection();
  ssr = new StandardServiceRegistryBuilder()
    .applySetting( AvailableSettings.HBM2DDL_CONNECTION, connection )
    .build();
  tool = (HibernateSchemaManagementTool) ssr.getService( SchemaManagementTool.class );
  configurationValues = ssr.getService( ConfigurationService.class ).getSettings();
  executionOptions = new ExecutionOptions() {
    @Override
    public boolean shouldManageNamespaces() {
      return true;
    }
    @Override
    public Map getConfigurationValues() {
      return configurationValues;
    }
    @Override
    public ExceptionHandler getExceptionHandler() {
      return ExceptionHandlerLoggedImpl.INSTANCE;
    }
  };
}

connectionProvider.configure( properties() );

private ConnectionProvider buildConnectionProvider(String dbName) {
  Properties props = new Properties( null );
  props.put( "hibernate.connection.driver_class", DRIVER );
  // Inject dbName into connection url string.
  props.put( "hibernate.connection.url", String.format( URL, dbName ) );
  props.put( "hibernate.connection.username", USER );
  props.put( "hibernate.connection.password", PASS );
  
  // Note that DriverManagerConnectionProviderImpl is an internal class.  However, rather than creating
  // a ConnectionProvider, I'm using it for simplicity's sake.
  // DriverManagerConnectionProviderImpl obtains a Connection through the JDBC Driver#connect
  DriverManagerConnectionProviderImpl connectionProvider = new DriverManagerConnectionProviderImpl();
  connectionProvider.configure( props );
  return connectionProvider;
}