kexi
keximigrate.h00001
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00022 #ifndef KEXI_MIGRATE_H
00023 #define KEXI_MIGRATE_H
00024
00025
00026 #include "kexidb/tableschema.h"
00027 #include "kexidb/connection.h"
00028 #include "keximigratedata.h"
00029
00030 #include <kgenericfactory.h>
00031 #include <qstringlist.h>
00032 #include <qguardedptr.h>
00033
00034 class KexiProject;
00035 namespace Kexi
00036 {
00037 class ObjectStatus;
00038 }
00039
00047 #define KEXI_MIGRATION_VERSION_MAJOR 1
00048 #define KEXI_MIGRATION_VERSION_MINOR 1
00049
00054 namespace KexiMigration
00055 {
00056
00058 KEXIMIGR_EXPORT int versionMajor();
00059
00061 KEXIMIGR_EXPORT int versionMinor();
00062
00063
00065
00078 class KEXIMIGR_EXPORT KexiMigrate : public QObject, public KexiDB::Object
00079 {
00080 Q_OBJECT
00081
00082 public:
00083 virtual ~KexiMigrate();
00084
00086 KexiMigration::Data* data() const { return m_migrateData; }
00087
00090 void setData(KexiMigration::Data* migrateData);
00091
00101 bool checkIfDestinationDatabaseOverwritingNeedsAccepting(Kexi::ObjectStatus* result,
00102 bool& acceptingNeeded);
00103
00106 bool isSourceAndDestinationDataSourceTheSame() const;
00107
00109 bool performImport(Kexi::ObjectStatus* result = 0);
00110
00112 bool performExport(Kexi::ObjectStatus* result = 0);
00113
00115 inline bool progressSupported() { return drv_progressSupported(); }
00116
00117 virtual int versionMajor() const = 0;
00118 virtual int versionMinor() const = 0;
00119
00123 virtual QVariant propertyValue( const QCString& propName );
00124
00126 void setPropertyValue( const QCString& propName, const QVariant& value );
00127
00131 QString propertyCaption( const QCString& propName ) const;
00132
00135 QValueList<QCString> propertyNames() const;
00136
00140 virtual bool isValid();
00141
00142 signals:
00143 void progressPercent(int percent);
00144
00145 protected:
00147 KexiMigrate(QObject *parent, const char *name, const QStringList &args = QStringList());
00148
00150 virtual bool drv_connect() = 0;
00152 virtual bool drv_disconnect() = 0;
00153
00155 virtual bool drv_tableNames(QStringList& tablenames) = 0;
00156
00158 virtual bool drv_readTableSchema(
00159 const QString& originalName, KexiDB::TableSchema& tableSchema) = 0;
00160
00170 virtual bool drv_queryMaxNumber(const QString& tableName,
00171 const QString& columnName, int& result);
00172
00180
00181 virtual tristate drv_queryStringListFromSQL(
00182 const QString& sqlStatement, uint columnNumber, QStringList& stringList, int numRecords = -1)
00183 { return cancelled; }
00184
00190
00191 virtual tristate drv_querySingleStringFromSQL(const QString& sqlStatement,
00192 uint columnNumber, QString& string);
00193
00201
00202 virtual tristate drv_fetchRecordFromSQL(const QString& sqlStatement,
00203 KexiDB::RowData& data, bool &firstRecord)
00204 { return cancelled; }
00205
00209 virtual bool drv_copyTable(const QString& srcTable, KexiDB::Connection *destConn,
00210 KexiDB::TableSchema* dstTable) = 0;
00211
00212 virtual bool drv_progressSupported() { return false; }
00213
00231 virtual bool drv_getTableSize(const QString&, Q_ULLONG&)
00232 { return false; }
00233
00234 void updateProgress(Q_ULLONG step = 1ULL);
00235
00238 KexiDB::Field::Type userType(const QString& fname);
00239
00240 virtual QString drv_escapeIdentifier( const QString& str ) const {
00241 return m_kexiDBDriver ? m_kexiDBDriver->escapeIdentifier(str) : str; }
00242
00245 KexiMigration::Data* m_migrateData;
00246
00247
00248
00249
00253 QMap<QCString,QVariant> m_properties;
00254
00258 QMap<QCString,QString> m_propertyCaptions;
00259
00261 QGuardedPtr<KexiDB::Driver> m_kexiDBDriver;
00262
00263 private:
00265 bool tableNames(QStringList& tablenames);
00266
00268 QPtrList<KexiDB::TableSchema> m_tableSchemas;
00269
00270 QPtrList<KexiDB::TableSchema> m_kexiDBCompatibleTableSchemasToRemoveFromMemoryAfterImport;
00271
00276 bool progressInitialise();
00277
00278 KexiProject *m_destPrj;
00279
00281 Q_ULLONG m_progressTotal;
00282
00284 Q_ULLONG m_progressDone;
00285
00287 Q_ULLONG m_progressNextReport;
00288
00289 friend class MigrateManager;
00290 };
00291
00292 }
00293
00296 #define KEXIMIGRATE_DRIVER_INFO( class_name, internal_name ) \
00297 int class_name::versionMajor() const { return KEXI_MIGRATION_VERSION_MAJOR; } \
00298 int class_name::versionMinor() const { return KEXI_MIGRATION_VERSION_MINOR; } \
00299 K_EXPORT_COMPONENT_FACTORY(keximigrate_ ## internal_name, \
00300 KGenericFactory<KexiMigration::class_name>( "keximigrate_" #internal_name ))
00301
00304 #define KEXIMIGRATION_DRIVER \
00305 public: \
00306 virtual int versionMajor() const; \
00307 virtual int versionMinor() const;
00308
00309 #endif
00310
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