Embedding R Tutorial

COM (1/3)
� Component Object Model
� defines a standard for interoperability
– comparable to libraries
– object-oriented (more specifically: component-oriented)
� basic unit is a “component”
– encapsulates operations (methods), data (properties) and state
– life-cycle management by reference counting
– object creation
– component is a “COM server”
– user of component is a “COM client”
� types of components
– in-process: DLL, lives in the client’s address space
– out-of-process: EXE, component lives in server’s address space