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The "TopLevelPackages" page has been changed by daniels: https://wiki.apache.org/cassandra/TopLevelPackages?action=diff&rev1=2&rev2=3 Packages can be arranged in a sort of a stack representing their relationship to each other and how they fit into the overall picture. - ==== Image here ==== + {{attachment:packageDiagram.png}} The '''primary stack''' group includes packages that can be easily arranged in layers. The lower layers are closer to the operating system and hardware (more specifically, to their Java abstractions), the middle layers form the storage and distribution engine. The top layers are various interfaces exposing the service to external clients. A couple of omnipresent classes span all layers, and are deeply involved in all of them.
