IDL Interface Definition Language

IDL Interface Definition Language

It is also called "Interface Description Language". It is a language specification used to describe the interfaces of software components.

IDL uses a neutral language to describe software components (written in different languages) to communicate with each other.

IDL is usually used for RPC (Remote Procedure Call) software.

IDL provides a "bridge" to connect different systems.

IDL-based software systems include:
Sun's onc RPC,
The distributed computing environment of the Open Group (distributed computing environment ),
IBM's System Object Model (System Object Model ),
OMG-based CORBA,
Thrift of Facebook,
The WSDL used for web service.

IDL Specification Language
Similar to other Interface Description Languages, IDL defines interfaces in a language-and hardware-independent manner, and allows interfaces between components to be written in different languages, RPC can be executed on different machines.

Java IDL migrates the capabilities of CORBA to the Java platform and provides standard-based Interoperability and connectivity. Java IDL enables distributed Java applications with web functions to transparently call remote network services using industry-standard omg idl.

Java IDL technology is based on interfaces and is defined on the top of corba idl. It is intended for Java programmers to program. This is the "business as usual" (business as usual, everything is normal) of the CORBA programming, support Java technology, also support C ++ or Cobol.

Microsoft's IDL (midl) defines interfaces between client and server programs. Midl includes the midl compiler for the Platform SDK, which enables developers to create the IDL file and the application configuration file ACF required to remotely call the RPC interface and the COM/DCOM interface.
Midl can be used for all Windows-based C/S applications and C/S applications in heterogeneous (heterogeneous) network environments, such as UNIX and apple. Microsoft supports the DCE standard of Open Group for RPC interoperability.
To use midl with RPC, it is necessary to be familiar with C/C ++ programming and RPC examples. When using midl with COM, it is necessary to be familiar with C ++ programming and RPC examples applied to com. It is also necessary to be familiar with OLE Automatic modeling scripts and typical libraries.