COM/DCOM/ActiveX in a Nutshell - II
ActiveX controls have, like JavaBeans, properties that can be queried and modified, a user interface, a set of methods that can be invoked and finally it can generate and send events
JavaBeans can be wrapped into ActiveX components that can be used in an ActiveX container
- Similarly JavaBeans can be bridged to OpenDoc and CORBA
DCOM provides the following services:
- Remote Object Creation
- Remote Object Access
- Transfer of data between machines using a machine neutral format called NDR (Network Data Representation)
- Security (not necessary in COM which assumes single user PC) including authentication, authorization, data integrity and data privacy