kdb::tools::Backend Class Reference

A low-level representation of the backend (= set of plugins) that can be mounted. More...

#include <backend.hpp>

Inheritance diagram for kdb::tools::Backend:

Collaboration diagram for kdb::tools::Backend:

Public Member Functions
	Backend ()
	Creates a new empty backend.
void	setMountpoint (Key mountpoint, KeySet mountConf)
	Sets the mountpoint for the backend. More...
void	setBackendConfig (KeySet const &ks)
	Backend Config to add to. More...
void	addPlugin (PluginSpec const &spec)
	Add a plugin that can be loaded, meets all constraints. More...
void	useConfigFile (std::string file)
bool	validated () const
void	serialize (kdb::KeySet &ret)

Detailed Description

A low-level representation of the backend (= set of plugins) that can be mounted.

To build a backend, you should prefer BackendBuilder, which automatically fixes ordering and allows us to remove plugins.

Member Function Documentation

addPlugin()

void kdb::tools::Backend::addPlugin ( PluginSpec const &  plugin )

virtual

Add a plugin that can be loaded, meets all constraints.

Note

that this does not mean that the backend validates after it is added. It only means that the situation is not getting worse.

Exceptions

PluginCheckException

or its subclasses if it was not possible to load the plugin

For validation

See also

validated().

Implements kdb::tools::BackendInterface.

serialize()

void kdb::tools::Backend::serialize ( kdb::KeySet &  ret )

virtual

Precondition

name and mountpoint set Add plugin serialization into keyset ret.

Only can be done once! (see firstRef in Plugin)

Implements kdb::tools::SerializeInterface.

setBackendConfig()

void kdb::tools::Backend::setBackendConfig ( KeySet const &  ks )

virtual

Backend Config to add to.

Parameters

ks	the config to add, should be below system:/

Implements kdb::tools::MountBackendInterface.

setMountpoint()

void kdb::tools::Backend::setMountpoint ( Key  mountpoint, KeySet  mountConf  )

virtual

Sets the mountpoint for the backend.

Exceptions

MountpointInvalidException
MountpointAlreadyInUseException

Parameters

mountpoint	the key name will be used as mountpoint. It is allowed to pass a key with a cascading name.
mountConf	needs to include the keys below system:/elektra/mountpoints

Implements kdb::tools::MountBackendInterface.

useConfigFile()

void kdb::tools::Backend::useConfigFile ( std::string  file )

virtual

Precondition

: resolver needs to be loaded first Will check the filename and use it as configFile for this backend.

Exceptions

FileNotValidException	if filename is not valid
MissingSymbol	if plugin does not implement 'checkfile'

Implements kdb::tools::MountBackendInterface.

validated()

bool kdb::tools::Backend::validated ( ) const

virtual

Returns

true if backend is validated

false if more plugins are needed to be valided

Implements kdb::tools::MountBackendInterface.

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The documentation for this class was generated from the following files:

• backend.hpp
• src/backend.cpp