kde-playground/kdepimlibs/akonadi/job_p.h
2015-04-14 21:49:29 +00:00

122 lines
3.4 KiB
C++

/*
Copyright (c) 2007 Tobias Koenig <tokoe@kde.org>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#ifndef AKONADI_JOB_P_H
#define AKONADI_JOB_P_H
#include "session.h"
#include "item.h"
namespace Akonadi {
/**
* @internal
*/
class JobPrivate
{
public:
explicit JobPrivate(Job *parent)
: q_ptr(parent)
, mCurrentSubJob(0)
, mSession(0)
, mWriteFinished(false)
, mStarted(false)
{
}
virtual ~JobPrivate()
{
}
void init(QObject *parent);
void handleResponse(const QByteArray &tag, const QByteArray &data);
void startQueued();
void lostConnection();
void slotSubJobAboutToStart(Akonadi::Job *);
void startNext();
void signalCreationToJobTracker();
void signalStartedToJobTracker();
void delayedEmitResult();
/*
Returns a string to display in akonadi console's job tracker. E.g. item ID.
*/
virtual QString jobDebuggingString() const {
return QString();
}
/**
Returns a new unique command tag for communication with the backend.
*/
QByteArray newTag();
/**
Return the tag used for the request.
*/
QByteArray tag() const;
/**
Sends raw data to the backend.
*/
void writeData(const QByteArray &data);
/**
* Notify following jobs about item revision changes.
* This is used to avoid phantom conflicts between pipelined modify jobs on the same item.
* @param itemID the id of the item which has changed
* @param oldRevision the old item revision
* @param newRevision the new item revision
*/
void itemRevisionChanged(Akonadi::Item::Id itemId, int oldRevision, int newRevision);
/**
* Propagate item revision changes to this job and its sub-jobs.
*/
void updateItemRevision(Akonadi::Item::Id itemId, int oldRevision, int newRevision);
/**
* Overwrite this if your job does operations with conflict detection and update
* the item revisions if your items are affected. The default implementation does nothing.
*/
virtual void doUpdateItemRevision(Akonadi::Item::Id, int oldRevision, int newRevision);
/**
* This method is called right before result() and finished() signals are emitted.
* Overwrite this method in your job if you need to emit some signals or process
* some data before the job finishes.
*
* Default implementation does nothing.
*/
virtual void aboutToFinish();
int protocolVersion() const;
Job *q_ptr;
Q_DECLARE_PUBLIC(Job)
Job *mParentJob;
Job *mCurrentSubJob;
QByteArray mTag;
Session *mSession;
bool mWriteFinished;
bool mStarted;
};
}
#endif