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Distributed Systems Architecture by Frank Pilhofer, Kay Römer, Arno Puder

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CHAPTER 7

OBJECT ADAPTERS

Object adapters separate object-specific behavior from the ORB kernel. This additional layer exists to allow for different object adapters to support the numerous functionality requirements that exist in a server. For example, the needs of a server representing an object database—which may provide numerous individual objects that cannot all exist in memory at the same time—are very different from a server that provides a printing service.

This chapter begins with an overview of the functionality of object adapters. The overview is followed by some examples of object adapters, including the Portable Object Adapter (POA) that must be supplied by all standard-conformant CORBA implementations. The chapter concludes with ...

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