Abstract: Systems and methods for accessing a relational database through an object-oriented querying interface are provided. A class of objects that are to be stored in the relational database are defined. One or more relational database tables are created and a mapping is produced that maps each data member of an object to one or more columns in a relational database table. Additionally, object-oriented paradigms like inheritance may be supported and the allocation of storage for array elements may be deferred until necessary.

Abstract: Systems and methods for accessing a relational database through an object-oriented querying interface are provided. A class of objects that are to be stored in the relational database are defined. One or more relational database tables are created and a mapping is produced that maps each data member of an object to one or more columns in a relational database table. Additionally, object-oriented paradigms like inheritance may be supported and the allocation of storage for array elements may be deferred until necessary.

Abstract: Systems and methods for accessing a relational database through an object-oriented querying interface are provided. A class of objects that are to be stored in the relational database are defined. One or more relational database tables are created and a mapping is produced that maps each data member of an object to one or more columns in a relational database table. Additionally, object-oriented paradigms like inheritance may be supported and the allocation of storage for array elements may be deferred until necessary.

Abstract: A real time billing system for accounts that locks out transaction events when the billing process is underway is provided. When a transaction event is received that should be posted to an account during the billing process, the account is locked. It is determined if the next bill time is in the past for the account and if it is, close billing of the account is performed on the account without billing the transaction event. After close billing of the account is finished, the transaction event may be posted to the account and the account unlocked.

Abstract: Systems and methods for accessing a relational database through an object-oriented querying interface are provided. A class of objects that are to be stored in the relational database are defined. One or more relational database tables are created and a mapping is produced that maps each data member of an object to one or more columns in a relational database table. Additionally, object-oriented paradigms like inheritance may be supported and the allocation of storage for array elements may be deferred until necessary.

Abstract: Disclosed is a container object that allows a user to define new payment resources without requiring the user to redesign a relational database system used for persistent storage of transaction information. An object server maps data that is represented in transient memory according to an object-oriented scheme to data that is represented in persistent memory according to a relational database scheme. The object server generates appropriate tables and columns for a relational database scheme automatically so that the object-oriented scheme generated by a user may be efficiently stored and searched in persistent memory. Preferably, array elements are represented as rows in a table, not as columns so that storage space is not wasted with place holder data. In certain embodiments, a rating engine is provided that searches available rates and creates a rate stack for the purpose of authorizing transactions and adjusting payment source balances when authorization events or payment events occur.