Object oriented database interface encapsulation that allows for chronologically overlapping transactions in a multi-threaded environment

摘要

A method for allowing chronologically overlapping database transactions in a multi-threaded environment without the need for explicit thread synchronization for database access. Literal database connections are managed on a per thread basis, thus allowing different chronologically overlapping transactions in different threads. Four basic objects are used to accomplish the chronologically overlapping transactions in a multi-threaded environment. The environment object is a static object that creates and maintains a pointer to the database application environment handle in addition to performing basic error recovery and initialization functionality. The database object encapsulates a logical database connection. The database connection object contains the functions that can be performed on a database connection, such as transaction management and query creation. The database statement object encapsulates a query that can be made to the database. This database statement object allows parameters to be attached to the query, and result objects to be returned.