|
/*
|
|
* Copyright (C) 2015 Christian Ehringfeld <c.ehringfeld@t-online.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation.
|
|
*
|
|
* This program 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 General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef RELATION_H
|
|
#define RELATION_H
|
|
#include <QString>
|
|
#include <QHash>
|
|
namespace CuteEntityManager {
|
|
enum RelationType {
|
|
ONE_TO_ONE = 0, //e.g. specialization, heritage
|
|
ONE_TO_MANY = 1, //@OneToMany(cascade=ALL, mappedBy="customer") e.g. QList<QSharedPointer<Person>>
|
|
MANY_TO_ONE = 2, //e.g. QSharedPointer<Person>
|
|
//1-n Entity foreign key in same table
|
|
MANY_TO_MANY = 3, //e.g. QList<QSharedPointer<Person>> - realized with seperated database table
|
|
};
|
|
|
|
enum InheritanceStrategy {
|
|
PER_CLASS_TABLE,
|
|
JOINED_TABLE,
|
|
};
|
|
|
|
enum CascadeType {
|
|
ALL,
|
|
MERGE,
|
|
PERSIST,
|
|
REFRESH,
|
|
REMOVE,
|
|
};
|
|
|
|
class Relation {
|
|
public:
|
|
explicit Relation();
|
|
explicit Relation(QString propertyName, bool optional, RelationType type);
|
|
/**
|
|
* @brief Relation
|
|
* @param propertyName
|
|
* @param type
|
|
* @param mappedBy Q_PROPERTY in foreign Entity
|
|
*/
|
|
explicit Relation(QString propertyName, RelationType type,
|
|
QString mappedBy = QString(),
|
|
QList<CascadeType> cascadeType = {MERGE, PERSIST, REFRESH});
|
|
~Relation();
|
|
RelationType getType() const;
|
|
void setType(const RelationType &value);
|
|
|
|
QString getPropertyName() const;
|
|
void setPropertyName(const QString &value);
|
|
|
|
bool getOptional() const;
|
|
void setOptional(bool value);
|
|
|
|
QString getMappedBy() const;
|
|
void setMappedBy(const QString &value);
|
|
|
|
QList<CascadeType> getCascadeType() const;
|
|
void setCascadeType(const QList<CascadeType> &value);
|
|
|
|
protected:
|
|
QString propertyName;
|
|
QString mappedBy;
|
|
RelationType type;
|
|
QList<CascadeType> cascadeType;
|
|
bool optional;
|
|
|
|
};
|
|
|
|
inline bool operator==(const Relation &e1, const Relation &e2) {
|
|
return e1.getPropertyName() == e2.getPropertyName();
|
|
}
|
|
|
|
inline uint qHash(const Relation &key, uint seed) {
|
|
return qHash(key.getPropertyName(), seed);
|
|
}
|
|
|
|
}
|
|
|
|
#endif // RELATION_H
|