CORBA?s goal is to address interoperability at various levels. There is a history to this. In the early versions of CORBA, interoperability between platforms and programming languages was addressed. This included the standardization of IDL and the... Read More

CORBA is useful in many situations. Because of the easy way that CORBA integrates machines from so many vendors, with sizes ranging from mainframes through minis and desktops to hand-helds and embedded systems, it is the middleware of choice for... Read More

The CORBA specification does not currently address multi-threaded architectures. Provided that the CORBA product is thread safe, threaded CORBA applications can be developed. CORBA clients and servers can both be multi-threaded. Daemon processes... Read More

Kind of. At the lowest level CORBA supports two modes of communication: A synchronous request/response which allows an application to make a request to some CORBA object and then wait for a response. A deferred synchronous request/response which... Read More

There are a number of ways to tune CORBA applications for better performance. Remember that distribution should only be used if a reason to do so exists. Distribution does not make sense for the sake of distribution. If distribution does not serve... Read More

The CORBA architecture is designed to support the distribution of objects implemented in a variety of programming languages. This is achieved by defining an interface definition language that can be mapped to a number of existing languages. IDL is... Read More

No, it?s infrastructure. Which is good because the history of high-level ?one size fits all? architectures hasn?t been very good, has it? CORBA provides low level request/response communication. It also provides general services that are implemented... Read More

Client-side CORBA applications might require multi-threading to allow it to perform other tasks while it is waiting for a synchronous remote invocation to return. It might desire this functionality for several different reasons. A client application... Read More

CORBA server applications may be multi-threaded for serveral reasons. A particular CORBA object may support an operation whose implementation performs some blocking routine. This may be a disk read or database query. Let us assume that the server... Read More

There are several different common architectures that can be used within multi-threaded CORBA servers. A server process needs the ability to process CORBA messages. These messages are processed by one or more threads, as determined by the... Read More

Building multi-threaded applications requires an additional efforts in the area of design, development and testing. Issues like concurrency and synchronization become more critical. Difficult to find software bugs are unfortunately easy to introduce.... Read More

Yes. The words client and server are really only applicable in the context of a remote call. In other words, the ?client process? can also receive calls on CORBA objects that it implements and hands out the references to. Read More

CORBA does not directly support distributed reference counting. This was a conscious decision on the part of its designers. While CORBA does not directly support reference counting, it is possible to build reference counting into a particular... Read More

Different CORBA implementations can vary significantly in performance. Good implementations should be fairly similar since network performance defines the maximum achievable performance characteristics. Network latency does represent the significant... Read More

CORBA is the acronym for Common Object Request Broker Architecture, OMG's open, vendor-independent architecture and infrastructure that computer applications use to work together over networks. Using the standard protocol IIOP, a CORBA-based... Read More

CORBA communication is inherently asymmetric. Request messages originate from clients and responses originate from servers. The important thing to realize is that a CORBA server is a CORBA object and a CORBA client is a CORBA stub. A client... Read More

Yeah, but you can fake it pretty easily. While CORBA does support a deferred synchronous request/response, it does not directly support distributed requests with a callback driven response. A callback driven response allows an application to perform... Read More