What is a Jackrabbit file system?
A Jackrabbbit file system (FS) is an internal component that implements standard file system operations on top of some underlying storage mechanism (a normal file system, a database, a webdav server, or a custom file format). A file system component is any Java class that implements the FileSystem interface and the associated behavioral contracts. File systems are used in Jackrabbit both as subcomponents of the persistence managers and for general storage needs (for example to store the full text indexes).