DSXchange

Is data stage a java based application. We have few components like job monitor etc which are java based but is the tool as a whole java based application?

No. DataStage has some Java components, has some ActiveX components, has some VB components, has some C++ components, and that's just in the client! The server engine is pretty much all written in C and DataStage BASIC. The parallel engine is primarily written in C++.