question: public BigdataSail ( final Properties properties ) { this ( properties . getProperty ( Options . NAMESPACE , Options . DEFAULT_NAMESPACE ) , new Journal ( properties ) ) ; closeOnShutdown = true ; if ( ! exists ( ) ) { try { create ( properties ) ; } catch ( InterruptedException | ExecutionException e ) { throw new RuntimeException ( e ) ; } } }
target:  Create or open a database instance configured using the specified properties.