SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS PROVIDING AN INTERFACE FOR ONE OR MORE DATABASES
A computer program product having a computer readable medium tangibly recording computer program logic is disclosed. The computer program product includes code to receive user input requesting access to a first database of a plurality of databases and code to load a file in a process written in unmanaged code, where the file creates a Component Object Model (COM) callable wrapper. The computer program product further includes code to make a method call to the COM callable wrapper requesting access to the first database and code to make an Application Programming Interface (API) call from the COM callable wrapper to an object oriented interface of the first database in response to the method call.
1 . A computer program product having a computer readable medium tangibly recording computer program logic, the computer program product comprising:
code to receive user input requesting access to a first database of a plurality of databases;
code to load a file in a process written in unmanaged code, where the file creates a Component Object Model (COM) callable wrapper;
code to make a method call to the COM callable wrapper requesting access to the first database; and
code to make an Application Programming Interface (API) call from the COM callable wrapper to an object oriented interface of the first database in response to the method call.
2 . The computer program product of claim 1 in which the file comprises a .DLL file.
3 . The computer program product of claim 1 in which the code to make a method call comprises:
code to instantiate a connection object adapted for use with the first database but not adapted for use with other databases of the plurality of databases.
4 . The computer program product of claim 1 in which the object oriented interface comprises:
an ADO.NET interface.
5 . The computer program product of claim 1 in which the object oriented interface comprises:
a C++ interface.
6 . The computer program product of claim 1 in which the object-oriented interface is based on managed code.
7 . A computer-implemented method comprising:
receiving user input requesting access to a first database of a plurality of databases;
loading a file in a process written in unmanaged code, where the file creates a Component Object Model (COM) callable wrapper;
making a method call to the COM callable wrapper requesting access to the first database; and
making an Application Programming Interface (API) call from the COM callable wrapper to an object oriented interface of the first database in response to the method call.
8 . The method of claim 7 in which the file comprises a .DLL file.
9 . The method of claim 7 in which making a method call comprises:
instantiating a connection object adapted for use with the first database but not adapted for use with other databases of the plurality of databases.
10 . The method of claim 7 in which the object oriented interface comprises:
an ADO.NET interface.
11 . The method of claim 7 in which the object oriented interface comprises:
a C++ interface.
12 . The method of claim 7 in which the object-oriented interface is based on managed code.
13 . A computer-implemented system comprising:
means for receiving user input requesting access to a first database of a plurality of databases;
means for loading a file in a process written in unmanaged code, where the file creates a Component Object Model (COM) callable wrapper;
means for making a method call to the COM callable wrapper requesting access to the first database; and
means for making an Application Programming Interface (API) call from the COM callable wrapper to an object oriented interface of the first database in response to the method call.
14 . The system of claim 13 in which the file comprises a .DLL file.
15 . The system of claim 13 in which the means for making a method call comprises:
means for instantiating a connection object adapted for use with the first database but not adapted for use with other databases of the plurality of databases.
16 . The system of claim 13 in which the object oriented interface comprises:
an ADO.NET interface.
17 . The system of claim 13 in which the object oriented interface comprises:
a C++ interface.
18 . The system of claim 13 in which the object-oriented interface is based on managed code.
19 . A computer-implemented system comprising:
a first functional unit that receives user input requesting access to a first database of a plurality of databases;
a second functional unit that loads a file in a process written in unmanaged code, where the file creates a Component Object Model (COM) callable wrapper;
a third functional unit that makes a method call to the COM callable wrapper requesting access to the first database; and
a fourth functional unit that makes an Application Programming Interface (API) call from the COM callable wrapper to an object oriented interface of the first database in response to the method call.
20 . The system of claim 19 in which the file comprises a .DLL file.
21 . The system of claim 19 in which the third functional unit comprises:
a fifth functional unit that instantiates a connection object adapted for use with the first database but not adapted for use with other databases of the plurality of databases.
22 . The system of claim 19 in which the object oriented interface comprises:
an ADO.NET interface.
23 . The system of claim 19 in which the object oriented interface comprises:
a C++ interface.
24 . The system of claim 19 in which the object-oriented interface is based on managed code.