Module: Sequel::JDBC::Transactions

Included in:
AS400::DatabaseMethods, Cubrid::DatabaseMethods, DB2::DatabaseMethods, Derby::DatabaseMethods, Firebird::DatabaseMethods, HSQLDB::DatabaseMethods, Oracle::DatabaseMethods, Progress::DatabaseMethods, SqlAnywhere::DatabaseMethods
Defined in:
lib/sequel/adapters/jdbc/transactions.rb

Constant Summary collapse

TRANSACTION_BEGIN = 
'Transaction.begin'.freeze
TRANSACTION_COMMIT = 
'Transaction.commit'.freeze
TRANSACTION_RELEASE_SP = 
'Transaction.release_savepoint'.freeze
TRANSACTION_ROLLBACK = 
'Transaction.rollback'.freeze
TRANSACTION_ROLLBACK_SP = 
'Transaction.rollback_savepoint'.freeze
TRANSACTION_SAVEPOINT = 
'Transaction.savepoint'.freeze

Instance Method Summary collapse

Instance Method Details

#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