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QxDaoAsync.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://www.qxorm.com/
    00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
    00005 **
    00006 ** This file is part of the QxOrm library
    00007 **
    00008 ** This software is provided 'as-is', without any express or implied
    00009 ** warranty. In no event will the authors be held liable for any
    00010 ** damages arising from the use of this software
    00011 **
    00012 ** Commercial Usage
    00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
    00014 ** accordance with the commercial license agreement provided with the
    00015 ** Software or, alternatively, in accordance with the terms contained in
    00016 ** a written agreement between you and Lionel Marty
    00017 **
    00018 ** GNU General Public License Usage
    00019 ** Alternatively, this file may be used under the terms of the GNU
    00020 ** General Public License version 3.0 as published by the Free Software
    00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
    00022 ** packaging of this file. Please review the following information to
    00023 ** ensure the GNU General Public License version 3.0 requirements will be
    00024 ** met : http://www.gnu.org/copyleft/gpl.html
    00025 **
    00026 ** If you are unsure which license is appropriate for your use, or
    00027 ** if you have questions regarding the use of this file, please contact :
    00028 ** contact@qxorm.com
    00029 **
    00030 ****************************************************************************/
    00031
    00032 #ifndef _QX_DAO_ASYNC_H_
    00033 #define _QX_DAO_ASYNC_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <QtCore/qqueue.h>
    00047
    00048 #include <QtSql/qsqlerror.h>
    00049
    00050 #ifndef Q_MOC_RUN
    00051 #include <QxDao/IxPersistable.h>
    00052 #include <QxDao/QxSqlQuery.h>
    00053 #endif // Q_MOC_RUN
    00054
    00055 namespace qx {
    00056 namespace dao {
    00057 namespace detail {
    00058
    00063 struct QxDaoAsyncParams
    00064 {
    00065
    00066    enum dao_action { dao_none, dao_count, dao_fetch_by_id, dao_fetch_all, dao_fetch_by_query, dao_insert,
    00067                      dao_update, dao_save, dao_delete_by_id, dao_delete_all, dao_delete_by_query,
    00068                      dao_destroy_by_id, dao_destroy_all, dao_destroy_by_query, dao_execute_query, dao_call_query };
    00069
    00070    dao_action           daoAction;
    00071    QString              className;
    00072    qx::QxSqlQuery       query;
    00073    QSqlDatabase *       pDatabase;
    00074    IxPersistable_ptr    pInstance;
    00075    IxCollection_ptr     pListOfInstances;
    00076    QStringList          listColumns;
    00077    QStringList          listRelations;
    00078    QVariant             id;
    00079    long                 daoCount;
    00080
    00081    QxDaoAsyncParams() : daoAction(dao_none), pDatabase(NULL), daoCount(0) { ; }
    00082    ~QxDaoAsyncParams() { ; }
    00083
    00084 };
    00085
    00086 typedef boost::shared_ptr<QxDaoAsyncParams> QxDaoAsyncParams_ptr;
    00087
    00092 class QX_DLL_EXPORT QxDaoAsyncRunner : public QObject
    00093 { Q_OBJECT
    00094
    00095 public:
    00096
    00097    QxDaoAsyncRunner();
    00098    virtual ~QxDaoAsyncRunner();
    00099
    00100 protected:
    00101
    00102    QSqlError runQuery(qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00103
    00104 Q_SIGNALS:
    00105
    00106    void queryFinished(const QSqlError & daoError, qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00107
    00108 public Q_SLOTS:
    00109
    00110    void onQueryStarted(qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00111
    00112 };
    00113
    00114 } // namespace detail
    00115 } // namespace dao
    00116
    00160 class QX_DLL_EXPORT QxDaoAsync : public QThread
    00161 { Q_OBJECT
    00162
    00163 protected:
    00164
    00165    QMutex m_mutex;
    00166    qx::dao::detail::QxDaoAsyncParams_ptr m_pDaoParams;
    00167
    00168 public:
    00169
    00170    QxDaoAsync();
    00171    virtual ~QxDaoAsync();
    00172
    00173    bool asyncCount(const QString & className, const qx::QxSqlQuery & query = qx::QxSqlQuery(), QSqlDatabase * pDatabase = NULL);
    00174    bool asyncFetchById(IxPersistable_ptr pToFetch, const QVariant & id = QVariant(), const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00175    bool asyncFetchAll(const QString & className, const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00176    bool asyncFetchByQuery(const QString & className, const qx::QxSqlQuery & query, const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00177    bool asyncInsert(IxPersistable_ptr pToInsert, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00178    bool asyncUpdate(IxPersistable_ptr pToUpdate, const qx::QxSqlQuery & query = qx::QxSqlQuery(), const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00179    bool asyncSave(IxPersistable_ptr pToSave, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00180    bool asyncDeleteById(IxPersistable_ptr pToDelete, const QVariant & id = QVariant(), QSqlDatabase * pDatabase = NULL);
    00181    bool asyncDeleteAll(const QString & className, QSqlDatabase * pDatabase = NULL);
    00182    bool asyncDeleteByQuery(const QString & className, const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00183    bool asyncDestroyById(IxPersistable_ptr pToDestroy, const QVariant & id = QVariant(), QSqlDatabase * pDatabase = NULL);
    00184    bool asyncDestroyAll(const QString & className, QSqlDatabase * pDatabase = NULL);
    00185    bool asyncDestroyByQuery(const QString & className, const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00186    bool asyncExecuteQuery(const QString & className, qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00187    bool asyncCallQuery(qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00188
    00189    bool isQueryRunning() const { return (m_pDaoParams.get() != NULL); }
    00190
    00191 protected:
    00192
    00193    virtual void run();
    00194
    00195    void startQuery();
    00196
    00197 Q_SIGNALS:
    00198
    00199    void queryStarted(qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00200    void queryFinished(const QSqlError & daoError, qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00201
    00202 private Q_SLOTS:
    00203
    00204    void onQueryFinished(const QSqlError & daoError, qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00205
    00206 };
    00207
    00208 typedef boost::shared_ptr<QxDaoAsync> QxDaoAsync_ptr;
    00209
    00210 } // namespace qx
    00211
    00212 #endif // _QX_DAO_ASYNC_H_