DBHandle - Database Handle (internal class - not supported as interface)

Database handle must be created for accessing data in an ODABA database. An ODABA database must be connected with a dictionary, which defines the object model for the database.

Each ODABA database is a Database Object (RootObject) that may refer to subordinated root Database Objects. Each Database Object within a database has its own name space, i.e. identifying keys are unique only within a Database Object.

When creating a database handle the object handle (ACObject) for the root Database Object is created automatically (the database handle is an Database Object handle), i.e. besides the DBHandle functions all ACObject functions can be called. In addition the database handle is responsible for the log and recovery file.