/usr/include/akonadi/attributeentity.h is in kdepimlibs5-dev 4:4.14.10-7+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (c) 2014 Christian Mollekopf <mollekopf@kolabsys.com>
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_ATTRIBUTEENTITY_H
#define AKONADI_ATTRIBUTEENTITY_H
#include <akonadi/job.h>
#include <QVector>
#include <qsharedpointer.h>
#include "attribute.h"
#include <kdebug.h>
namespace Akonadi {
/**
* Parent class for entities that can have attributes.
* This is supposed to eventually share the code between Akonadi::Tag and Akonadi::Entity.
*
* In the current form using this in Akonadi::Entity would break the implicit sharing of it's private class,
* so AttributeEntity::Private would need to become a parent class of EntityPrivate and use the same clone()
* calls etc.
* An even better solution is probably ot make AttributeEntity a private member of Entity, with all Attribute related member functions forwarding to this class.
*/
class AKONADI_EXPORT AttributeEntity {
public:
AttributeEntity();
AttributeEntity(const AttributeEntity &other);
virtual ~AttributeEntity();
//Each subclass must override this to avoid slicing
virtual AttributeEntity &operator=(const AttributeEntity &other);
/**
* Adds an attribute to the entity.
*
* If an attribute of the same type name already exists, it is deleted and
* replaced with the new one.
*
* @param attribute The new attribute.
*
* @note The entity takes the ownership of the attribute.
*/
void addAttribute(Attribute *attribute);
/**
* Removes and deletes the attribute of the given type @p name.
*/
void removeAttribute(const QByteArray &name);
/**
* Returns @c true if the entity has an attribute of the given type @p name,
* false otherwise.
*/
bool hasAttribute(const QByteArray &name) const;
/**
* Returns a list of all attributes of the entity.
*/
Attribute::List attributes() const;
/**
* Removes and deletes all attributes of the entity.
*/
void clearAttributes();
/**
* Returns the attribute of the given type @p name if available, 0 otherwise.
*/
Attribute *attribute(const QByteArray &name) const;
/**
* Describes the options that can be passed to access attributes.
*/
enum CreateOption {
AddIfMissing ///< Creates the attribute if it is missing
};
/**
* Returns the attribute of the requested type.
* If the entity has no attribute of that type yet, a new one
* is created and added to the entity.
*
* @param option The create options.
*/
template <typename T> inline T *attribute(CreateOption option)
{
Q_UNUSED(option);
const T dummy;
if (hasAttribute(dummy.type())) {
T *attr = dynamic_cast<T *>(attribute(dummy.type()));
if (attr) {
return attr;
}
kWarning(5250) << "Found attribute of unknown type" << dummy.type()
<< ". Did you forget to call AttributeFactory::registerAttribute()?";
}
T *attr = new T();
addAttribute(attr);
return attr;
}
/**
* Returns the attribute of the requested type or 0 if it is not available.
*/
template <typename T> inline T *attribute() const
{
const T dummy;
if (hasAttribute(dummy.type())) {
T *attr = dynamic_cast<T *>(attribute(dummy.type()));
if (attr) {
return attr;
}
kWarning(5250) << "Found attribute of unknown type" << dummy.type()
<< ". Did you forget to call AttributeFactory::registerAttribute()?";
}
return 0;
}
/**
* Removes and deletes the attribute of the requested type.
*/
template <typename T> inline void removeAttribute()
{
const T dummy;
removeAttribute(dummy.type());
}
/**
* Returns whether the entity has an attribute of the requested type.
*/
template <typename T> inline bool hasAttribute() const
{
const T dummy;
return hasAttribute(dummy.type());
}
private:
friend class TagModifyJob;
QSet<QByteArray> &removedAttributes() const;
class Private;
QSharedPointer<Private> d_ptr;
};
}
#endif
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