When the account get modified, the business object automatically notify all its observers. Synchonization Tools JAVA allow to block access to methods of a class so as to insure the atomicity on the execution of a method. It can prevent 2 several threads to call a method at the same time, using a Mutex lock. Whereas almost all JAVA commands are interpreted, JDBC allow to create pre-compiled statements. It helps reducing process time for some statements, and it is useful for statements often used.
Stored procedures are programs run on the server.
They allow to process SQL statements in a secured way. They prevent users to directly modify data and allow them only a execute permission, providing a higher amount of control on database access. A Callable statement object is a statement which is able to work in conjunction with such procedures. Standard Access through JDBC JDBC is a set of several classes and interfaces. To access a vendor-specific database, the JDBC classes must be given a proper driver to access this database.