Package com.apple.foundationdb.directory

Provides tools for managing hierarchically related key subspaces.

See: Description

Interface Summary

Interface	Description
Directory	Represents a directory in the DirectoryLayer.

Class Summary

Class	Description
DirectoryLayer	Provides a class for managing directories in FoundationDB.
DirectorySubspace	A DirectorySubspace represents the contents of a directory, but it also remembers the path with which it was opened and offers convenience methods to operate on the directory at that path.
PathUtil	The PathUtil class provides static helper functions useful for working with directory paths.

Exception Summary

Exception	Description
DirectoryAlreadyExistsException	A DirectoryException that is thrown when a directory is being created at or moved to a location that already has a directory present.
DirectoryException	An Exception that is thrown by the directory layer corresponding to a specific path.
DirectoryMoveException	An Exception that is thrown when an invalid directory move is attempted.
DirectoryVersionException	An Exception that is thrown when the version of the directory layer used to create directories in the database is incompatible with this version of the directory layer.
MismatchedLayerException	A DirectoryException that is thrown when a directory is opened with an incompatible layer.
NoSuchDirectoryException	A DirectoryException that is thrown when a directory that doesn't exist is used.

Package com.apple.foundationdb.directory Description

Provides tools for managing hierarchically related key subspaces. Directories are a recommended approach for administering applications. Each application should create or open at least one directory to manage its subspaces.

Directories are identified by hierarchical paths analogous to the paths in a Unix-like file system. A path is represented as a tuple of strings. Each directory has an associated subspace used to store its content. The directory layer maps each path to a short prefix used for the corresponding subspace. In effect, directories provide a level of indirection for access to subspaces.

See general directory documentation for information about how directories work and interact with other parts of the built-in keyspace management features.