#include <itemsync.h>

Inheritance diagram for Akonadi::ItemSync:

Public Types
enum	TransactionMode { SingleTransaction, MultipleTransactions, NoTransaction }

Public Types inherited from Akonadi::Job
enum	Error { ConnectionFailed = UserDefinedError, ProtocolVersionMismatch, UserCanceled, Unknown, UserError = UserDefinedError + 42 }

typedef QList< Job * >	List

Public Member Functions
	ItemSync (const Collection &collection, QObject *parent=0)

	~ItemSync ()

void	deliveryDone ()

ItemFetchScope &	fetchScope ()

void	rollback ()

void	setFetchScope (ItemFetchScope &fetchScope)

void	setFullSyncItems (const Item::List &items)

void	setIncrementalSyncItems (const Item::List &changedItems, const Item::List &removedItems)

void	setStreamingEnabled (bool enable)

void	setTotalItems (int amount)

void	setTransactionMode (TransactionMode mode)

Public Member Functions inherited from Akonadi::Job
	Job (QObject *parent=0)

virtual	~Job ()

virtual QString	errorString () const

void	start ()

Protected Member Functions
void	doStart ()

void	slotResult (KJob *job)

virtual bool	updateItem (const Item &storedItem, Item &newItem)

Protected Member Functions inherited from Akonadi::Job
virtual bool	addSubjob (KJob *job)

virtual void	doHandleResponse (const QByteArray &tag, const QByteArray &data)

virtual bool	doKill ()

void	emitWriteFinished ()

virtual bool	removeSubjob (KJob *job)

Additional Inherited Members
Signals inherited from Akonadi::Job
void	aboutToStart (Akonadi::Job *job)

void	writeFinished (Akonadi::Job *job)

Protected Slots inherited from Akonadi::Job

Detailed Description

Syncs between items known to a client (usually a resource) and the Akonadi storage.

Remote Id must only be set by the resource storing the item, other clients should leave it empty, since the resource responsible for the target collection will be notified about the addition and then create a suitable remote Id.

There are two different forms of ItemSync usage:

Full-Sync: meaning the client provides all valid items, i.e. any item not part of the list but currently stored in Akonadi will be removed
Incremental-Sync: meaning the client provides two lists, one for items which are new or modified and one for items which should be removed. Any item not part of either list but currently stored in Akonadi will not be changed.

Note: This is provided for convenience to implement "save all" like behavior, however it is strongly recommended to use single item jobs whenever possible, e.g. ItemCreateJob, ItemModifyJob and ItemDeleteJob

Author: Tobias Koenig tokoe.nosp@m.@kde.nosp@m..org

Definition at line 53 of file itemsync.h.

Member Enumeration Documentation

enum Akonadi::ItemSync::TransactionMode

Transaction mode used by ItemSync.

Since: 4.6

Enumerator
SingleTransaction	Use a single transaction for the entire sync process (default), provides maximum consistency ("all or nothing") and best performance.
MultipleTransactions	Use one transaction per chunk of delivered items, good compromise between the other two when using streaming.
NoTransaction	Use no transaction at all, provides highest responsiveness (might therefore feel faster even when actually taking slightly longer), no consistency guaranteed (can fail anywhere in the sync process)

Definition at line 158 of file itemsync.h.

Constructor & Destructor Documentation

ItemSync::ItemSync	(	const Collection &	collection,
		QObject *	parent = `0`
	)

explicit

Creates a new item synchronizer.

Parameters

collection	The collection we are syncing.
parent	The parent object.

Definition at line 130 of file itemsync.cpp.

ItemSync::~ItemSync ( )

Destroys the item synchronizer.

Definition at line 137 of file itemsync.cpp.

Member Function Documentation

void ItemSync::deliveryDone ( )

Notify ItemSync that all remote items have been delivered.

Only call this in streaming mode.

Definition at line 439 of file itemsync.cpp.

void ItemSync::doStart ( )

protectedvirtual

This method must be reimplemented in the concrete jobs.

It will be called after the job has been started and a connection to the Akonadi backend has been established.

Implements Akonadi::Job.

Definition at line 194 of file itemsync.cpp.

ItemFetchScope & ItemSync::fetchScope ( )

Returns the item fetch scope.

Since this returns a reference it can be used to conveniently modify the current scope in-place, i.e. by calling a method on the returned reference without storing it in a local variable. See the ItemFetchScope documentation for an example.

Returns: a reference to the current item fetch scope

See also: setFetchScope() for replacing the current item fetch scope

Definition at line 189 of file itemsync.cpp.

void ItemSync::rollback ( )

Aborts the sync process and rolls back all not yet committed transactions.

Use this if an external error occurred during the sync process (such as the user canceling it).

Since: 4.5

Definition at line 461 of file itemsync.cpp.

void ItemSync::setFetchScope ( ItemFetchScope & fetchScope )

Sets the item fetch scope.

The ItemFetchScope controls how much of an item's data is fetched from the server, e.g. whether to fetch the full item payload or only meta data.

Parameters

fetchScope The new scope for item fetch operations.

See also: fetchScope()

Definition at line 184 of file itemsync.cpp.

void ItemSync::setFullSyncItems ( const Item::List & items )

Sets the full item list for the collection.

Usually the result of a full item listing.

Warning: If the client using this is a resource, all items must have a valid remote identifier.

Parameters

items A list of items.

Definition at line 142 of file itemsync.cpp.

void ItemSync::setIncrementalSyncItems	(	const Item::List &	changedItems,
		const Item::List &	removedItems
	)

Sets the item lists for incrementally syncing the collection.

Usually the result of an incremental remote item listing.

Warning: If the client using this is a resource, all items must have a valid remote identifier.

Parameters

changedItems	A list of items added or changed by the client.
removedItems	A list of items deleted by the client.

Definition at line 170 of file itemsync.cpp.

void ItemSync::setStreamingEnabled ( bool enable )

Enable item streaming.

Item streaming means that the items delivered by setXItems() calls are delivered in chunks and you manually indicate when all items have been delivered by calling deliveryDone().

Parameters

enable true to enable item streaming

Definition at line 434 of file itemsync.cpp.

void ItemSync::setTotalItems ( int amount )

Set the amount of items which you are going to return in total by using the setFullSyncItems() method.

Parameters

amount The amount of items in total.

Definition at line 156 of file itemsync.cpp.

void ItemSync::setTransactionMode ( ItemSync::TransactionMode mode )

Set the transaction mode to use for this sync.

Note: You must call this method before starting the sync, changes afterwards lead to undefined results.

Parameters

mode	the transaction mode to use

Since: 4.6

Definition at line 470 of file itemsync.cpp.

bool ItemSync::updateItem	(	const Item &	storedItem,
		Item &	newItem
	)

protectedvirtual

Reimplement this method to customize the synchronization algorithm.

Parameters

storedItem	the item as it is now
newItem	the item as it should be You can update the `newItem` according to the `storedItem` before it gets committed.

Definition at line 205 of file itemsync.cpp.

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

akonadi

Public Types

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

akonadi

kdepimlibs API Reference

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