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#include <datastore.h>

Inheritance diagram for Akonadi::Server::DataStore:


void transactionCommitted ()
void transactionRolledBack ()

Public Member Functions

 ~DataStore () override
virtual void activeCachePolicy (Collection &col)
virtual bool addCollectionAttribute (const Collection &col, const QByteArray &key, const QByteArray &value, bool silent=false)
virtual bool appendCollection (Collection &collection, const QStringList &mimeTypes, const QMap< QByteArray, QByteArray > &attributes)
virtual bool appendItemsFlags (const PimItem::List &items, const QVector< Flag > &flags, bool *flagsChanged=nullptr, bool checkIfExists=true, const Collection &col=Collection(), bool silent=false)
virtual bool appendItemsTags (const PimItem::List &items, const Tag::List &tags, bool *tagsChanged=nullptr, bool checkIfExists=true, const Collection &col=Collection(), bool silent=false)
virtual bool appendMimeTypeForCollection (qint64 collectionId, const QStringList &mimeTypes)
virtual bool appendPimItem (QVector< Part > &parts, const QVector< Flag > &flags, const MimeType &mimetype, const Collection &collection, const QDateTime &dateTime, const QString &remote_id, const QString &remoteRevision, const QString &gid, PimItem &pimItem)
virtual bool beginTransaction (const QString &name)
virtual bool cleanupCollection (Collection &collection)
virtual bool cleanupCollection_slow (Collection &collection)
virtual bool cleanupPimItems (const PimItem::List &items, bool silent=false)
void close ()
virtual bool commitTransaction ()
QSqlDatabase database ()
bool doRollback ()
virtual bool init ()
bool inTransaction () const
virtual bool invalidateItemCache (const PimItem &item)
bool isOpened () const
virtual bool moveCollection (Collection &collection, const Collection &newParent)
NotificationCollectornotificationCollector ()
virtual void open ()
virtual bool removeCollectionAttribute (const Collection &col, const QByteArray &key)
virtual bool removeItemParts (const PimItem &item, const QSet< QByteArray > &parts)
virtual bool removeItemsFlags (const PimItem::List &items, const QVector< Flag > &flags, bool *tagsChanged=nullptr, const Collection &collection=Collection(), bool silent=false)
virtual bool removeItemsTags (const PimItem::List &items, const Tag::List &tags, bool *tagsChanged=nullptr, bool silent=false)
virtual bool removeTags (const Tag::List &tags, bool silent=false)
virtual bool rollbackTransaction ()
virtual bool setItemsFlags (const PimItem::List &items, const QVector< Flag > *currentFlags, const QVector< Flag > &newFlags, bool *flagsChanged=nullptr, const Collection &col=Collection(), bool silent=false)
virtual bool setItemsTags (const PimItem::List &items, const Tag::List &tags, bool *tagsChanged=nullptr, bool silent=false)
void setSessionId (const QByteArray &sessionId)
void transactionKilledByDB ()
virtual bool unhideAllPimItems ()
virtual bool unhidePimItem (PimItem &pimItem)
QVector< CollectionvirtualCollections (const PimItem &item)
QMap< Server::Entity::Id, QList< PimItem > > virtualCollections (const Akonadi::Server::PimItem::List &items)
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
bool blockSignals (bool block)
const QObjectListchildren () const const
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void deleteLater ()
void destroyed (QObject *obj)
bool disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool disconnect (const QObject *receiver, const char *method) const const
void dumpObjectInfo ()
void dumpObjectInfo () const const
void dumpObjectTree ()
void dumpObjectTree () const const
QList< QByteArraydynamicPropertyNames () const const
virtual bool event (QEvent *e)
virtual bool eventFilter (QObject *watched, QEvent *event)
findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T > findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T > findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
QList< T > findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
bool inherits (const char *className) const const
void installEventFilter (QObject *filterObj)
bool isWidgetType () const const
bool isWindowType () const const
void killTimer (int id)
virtual const QMetaObjectmetaObject () const const
void moveToThread (QThread *targetThread)
QString objectName () const const
void objectNameChanged (const QString &objectName)
QObjectparent () const const
QVariant property (const char *name) const const
 Q_CLASSINFO (Name, Value)
 Q_ENUM (...)
 Q_ENUM_NS (...)
 Q_ENUMS (...)
 Q_FLAG (...)
 Q_FLAG_NS (...)
 Q_FLAGS (...)
qFindChild (const QObject *obj, const QString &name)
QList< T > qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T > qFindChildren (const QObject *obj, const QString &name)
qobject_cast (QObject *object)
qobject_cast (const QObject *object)
void removeEventFilter (QObject *obj)
void setObjectName (const QString &name)
void setParent (QObject *parent)
bool setProperty (const char *name, const QVariant &value)
bool signalsBlocked () const const
int startTimer (int interval, Qt::TimerType timerType)
int startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
QThreadthread () const const

Static Public Member Functions

static QString collectionDelimiter ()
static bool hasDataStore ()
static DataStoreself ()
static void setFactory (std::unique_ptr< DataStoreFactory > factory)
- Static Public Member Functions inherited from QObject
QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
bool disconnect (const QMetaObject::Connection &connection)
bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
QString tr (const char *sourceText, const char *disambiguation, int n)
QString trUtf8 (const char *sourceText, const char *disambiguation, int n)

Static Public Attributes

const static constexpr bool Silent = true

Protected Member Functions

 DataStore (AkonadiServer &akonadi)
void debugLastDbError (const char *actionDescription) const
void debugLastQueryError (const QSqlQuery &query, const char *actionDescription) const
- Protected Member Functions inherited from QObject
virtual void childEvent (QChildEvent *event)
virtual void connectNotify (const QMetaMethod &signal)
virtual void customEvent (QEvent *event)
virtual void disconnectNotify (const QMetaMethod &signal)
bool isSignalConnected (const QMetaMethod &signal) const const
int receivers (const char *signal) const const
QObjectsender () const const
int senderSignalIndex () const const
virtual void timerEvent (QTimerEvent *event)

Protected Attributes

AkonadiServer & m_akonadi
std::unique_ptr< NotificationCollectormNotificationCollector

Static Protected Attributes

static std::unique_ptr< DataStoreFactory > sFactory

Additional Inherited Members

- Properties inherited from QObject
- Public Attributes inherited from QObject
typedef QObjectList

Detailed Description

This class handles all the database access.

Database configuration

You can select between various database backends during runtime using the $HOME/.config/akonadi/akonadiserverrc configuration file.






Use General/Driver to select the QSql driver to use for database access. The following drivers are currently supported, other might work but are untested:


The options for each driver are read from the corresponding group. The following options are supported, dependent on the driver not all of them might have an effect:

  • Name: Database name, for sqlite that's the file name of the database.
  • Host: Hostname of the database server
  • User: Username for the database server
  • Password: Password for the database server
  • Options: Additional options, format is driver-dependent
  • StartServer: Start the database locally just for Akonadi instead of using an existing one
  • ServerPath: Path to the server executable

Definition at line 94 of file datastore.h.

Constructor & Destructor Documentation

DataStore::~DataStore ( )

Closes the database connection and destroys the DataStore object.

Definition at line 96 of file datastore.cpp.

DataStore::DataStore ( AkonadiServer &  akonadi)

Creates a new DataStore object and opens it.

Definition at line 80 of file datastore.cpp.

Member Function Documentation

void DataStore::activeCachePolicy ( Collection col)

Determines the active cache policy for this Collection.

The active cache policy is set in the corresponding Collection fields.

Definition at line 1006 of file datastore.cpp.

bool DataStore::beginTransaction ( const QString name)

Begins a transaction.

No changes will be written to the database and no notification signal will be emitted unless you call commitTransaction().

true if successful.

Definition at line 1348 of file datastore.cpp.

bool DataStore::cleanupCollection ( Collection collection)

removes the given collection and all its content

Definition at line 801 of file datastore.cpp.

bool DataStore::cleanupCollection_slow ( Collection collection)

same as the above but for database backends without working referential actions on foreign keys

Definition at line 848 of file datastore.cpp.

bool DataStore::cleanupPimItems ( const PimItem::List &  items,
bool  silent = false 

Removes the pim item and all referenced data ( e.g.

flags )

Definition at line 1184 of file datastore.cpp.

void DataStore::close ( )

Closes the database connection.

Definition at line 143 of file datastore.cpp.

bool DataStore::commitTransaction ( )

Commits all changes within the current transaction and emits all collected notification signals.

If committing fails, the transaction will be rolled back.

Definition at line 1413 of file datastore.cpp.

QSqlDatabase DataStore::database ( )

Returns the QSqlDatabase object.

Use this for generating queries yourself.

Will [re-]open the database, if it is closed.

Definition at line 135 of file datastore.cpp.

bool DataStore::hasDataStore ( )

Returns whether per thread DataStore has been created.

Definition at line 223 of file datastore.cpp.

bool DataStore::init ( )

Initializes the database.

Should be called during startup by the main thread.

Definition at line 170 of file datastore.cpp.

bool DataStore::inTransaction ( ) const

Returns true if there is a transaction in progress.

Definition at line 1449 of file datastore.cpp.

bool Akonadi::Server::DataStore::isOpened ( ) const

Returns if the database is currently open.

Definition at line 292 of file datastore.h.

bool DataStore::moveCollection ( Collection collection,
const Collection newParent 

moves the collection collection to newParent.

Definition at line 940 of file datastore.cpp.

NotificationCollector * DataStore::notificationCollector ( )

Returns the notification collector of this DataStore object.

Use this to listen to change notification signals.

Definition at line 206 of file datastore.cpp.

void DataStore::open ( )

Opens the database connection.

Definition at line 101 of file datastore.cpp.

bool DataStore::removeCollectionAttribute ( const Collection col,
const QByteArray key 

Removes the given collection attribute for col.

HandlerExceptionon database errors
true if the attribute existed, false otherwise

Definition at line 1264 of file datastore.cpp.

bool DataStore::rollbackTransaction ( )

Reverts all changes within the current transaction.

Definition at line 1391 of file datastore.cpp.

DataStore * DataStore::self ( )

Per thread singleton.

Definition at line 215 of file datastore.cpp.

void Akonadi::Server::DataStore::setSessionId ( const QByteArray sessionId)

Sets the current session id.

Definition at line 284 of file datastore.h.

void Akonadi::Server::DataStore::transactionCommitted ( )

Emitted if a transaction has been successfully committed.

void Akonadi::Server::DataStore::transactionRolledBack ( )

Emitted if a transaction has been aborted.

bool DataStore::unhideAllPimItems ( )

Unhides all the items which have the "hidden" flag set.

This function doesn't emit any notification about the items being unhidden so it's meant to be called only in rare circumstances. The most notable call to this function is at server startup when we attempt to restore a clean state of the database.

Definition at line 1168 of file datastore.cpp.

bool DataStore::unhidePimItem ( PimItem &  pimItem)

Unhides the specified PimItem.

Emits the itemAdded() notification as the hidden flag is assumed to have been set by appendPimItem() before pushing the item to the preprocessor chain. The hidden item had his notifications disabled until now (so for the clients the "unhide" operation is actually a new item arrival).

This function does NOT verify if the item was really hidden: this is responsibility of the caller.

Definition at line 1156 of file datastore.cpp.

QVector< Collection > DataStore::virtualCollections ( const PimItem &  item)

Returns all virtual collections the item is linked to.

Definition at line 1031 of file datastore.cpp.

The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
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