Module: Sequel::JDBC::Transactions

Included in:
DB2::DatabaseMethods, Derby::DatabaseMethods, HSQLDB::DatabaseMethods, Oracle::DatabaseMethods, SqlAnywhere::DatabaseMethods
Defined in:
lib/sequel/adapters/jdbc/transactions.rb

Instance Method Summary collapse

Instance Method Details

#freeze ⇒ Object 



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# File 'lib/sequel/adapters/jdbc/transactions.rb', line 6

def freeze
  supports_savepoints?
  super
end

#supports_savepoints? ⇒ Boolean

Check the JDBC DatabaseMetaData for savepoint support

Returns:

  • (Boolean) 


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# File 'lib/sequel/adapters/jdbc/transactions.rb', line 12

def supports_savepoints?
  return @supports_savepoints if defined?(@supports_savepoints)
  @supports_savepoints = synchronize{|c| c.getMetaData.supports_savepoints}
end

#supports_transaction_isolation_levels? ⇒ Boolean

Check the JDBC DatabaseMetaData for support for serializable isolation, since that’s the value most people will use.

Returns:

  • (Boolean) 


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# File 'lib/sequel/adapters/jdbc/transactions.rb', line 19

def supports_transaction_isolation_levels?
  synchronize{|conn| conn.getMetaData.supportsTransactionIsolationLevel(JavaSQL::Connection::TRANSACTION_SERIALIZABLE)}
end