21 files changed, 1319 insertions, 3 deletions

diff --git a/libopie2/opiedb/DESIGN b/libopie2/opiedb/DESIGN
new file mode 100644
index 0000000..a6c7217
--- a/dev/null
+++ b/libopie2/opiedb/DESIGN
@@ -0,0 +1,19 @@
+Design of OpieSQL
+
+My intention for OpieSQL was to write
+a simple c++ interface which would allow
+easy use of common database functions on
+different backends
+
+How does these goals reflect the current Implementation
+
+-through OSQLManager + OSQLBackEnd I'll be able to change
+the default db driver and be able to add new 
+driver implementations
+
+-OSQLQuery, RawQuery, SelectQuery allows a flexible and
+OO way of fast querying databases
+
+-much more ;)
+
+
diff --git a/libopie2/opiedb/TODO b/libopie2/opiedb/TODO
new file mode 100644
index 0000000..ca04ac6
--- a/dev/null
+++ b/libopie2/opiedb/TODO
@@ -0,0 +1,9 @@
+* something like Capabilities of a Driver
+  - ROWID
+  - How to declare INTEGER PRIMARY KEY
+  - Abstract from implementation of some dbs
+  - provides( Type::What )
+  
+ * OSQLDriver DriverVersion - DatabaseVersion
+ * Better OSQLQueries
+   - more than OSQLRawQuery
\ No newline at end of file
diff --git a/libopie2/opiedb/opiedb.pro b/libopie2/opiedb/opiedb.pro
index 0d0ab78..401646a 100644
--- a/libopie2/opiedb/opiedb.pro
+++ b/libopie2/opiedb/opiedb.pro
@@ -1,17 +1,32 @@
 TEMPLATE    = lib
 CONFIG      += qt warn_on debug
 DESTDIR     = $(OPIEDIR)/lib
-HEADERS     = 
-              
-SOURCES     =
+HEADERS     = osqlbackend.h      \
+                osqldriver.h     \
+                osqlerror.h      \
+                osqlmanager.h    \
+                osqlquery.h      \
+                osqlresult.h     \
+                osqltable.h      \
+                osqlbackendmanager.h \
+                osqlitedriver.h
+SOURCES     = osqlbackend.cpp    \
+                osqldriver.cpp   \
+                osqlerror.cpp    \
+                osqlmanager.cpp  \
+                osqlquery.cpp    \
+                osqlresult.cpp   \
+                osqltable.cpp    \
+                osqlbackendmanager.cpp \
+                osqlitedriver.cpp
 INTERFACES  =
 TARGET      = opiedb2
 VERSION     = 1.8.1
 INCLUDEPATH += $(OPIEDIR)/include
 DEPENDPATH  += $(OPIEDIR)/include
 
 MOC_DIR     = moc
 OBJECTS_DIR = obj
 
 include ( $(OPIEDIR)/include.pro )
 
diff --git a/libopie2/opiedb/osqlbackend.cpp b/libopie2/opiedb/osqlbackend.cpp
new file mode 100644
index 0000000..d6c39a9
--- a/dev/null
+++ b/libopie2/opiedb/osqlbackend.cpp
@@ -0,0 +1,73 @@
+
+#include "osqlbackend.h"
+
+
+OSQLBackEnd::OSQLBackEnd( const QString& name,
+                          const QString& vendor,
+                          const QString& license,
+                          const QCString& lib )
+    : m_name( name), m_vendor( vendor),  m_license( license ), m_lib( lib )
+{
+    m_default = false;
+    m_pref = -1;
+}
+OSQLBackEnd::OSQLBackEnd( const OSQLBackEnd& back ) {
+    (*this) = back;
+}
+OSQLBackEnd::~OSQLBackEnd() {
+}
+bool OSQLBackEnd::operator==( const OSQLBackEnd& other ) {
+    if ( m_pref != other.m_pref ) return false;
+    if ( m_default != other.m_default ) return false;
+    if ( m_name != other.m_name ) return false;
+    if ( m_vendor != other.m_vendor ) return false;
+    if ( m_license != other.m_license ) return false;
+    if ( m_lib != other.m_lib ) return false;
+
+    return true;
+}
+OSQLBackEnd &OSQLBackEnd::operator=(const OSQLBackEnd& back ) {
+    m_name = back.m_name;
+    m_vendor = back.m_vendor;
+    m_license = back.m_license;
+    m_lib = back.m_lib;
+    m_pref = back.m_pref;
+    m_default = back.m_default;
+    return *this;
+}
+QString OSQLBackEnd::name() const {
+    return m_name;
+}
+QString OSQLBackEnd::vendor() const {
+    return m_vendor;
+}
+QString OSQLBackEnd::license() const {
+    return m_license;
+}
+QCString OSQLBackEnd::library() const {
+    return m_lib;
+}
+bool OSQLBackEnd::isDefault()const {
+    return m_default;
+}
+int OSQLBackEnd::preference()const {
+    return m_pref;
+}
+void OSQLBackEnd::setName( const QString& name ) {
+    m_name = name;
+}
+void OSQLBackEnd::setVendor( const QString& vendor ) {
+    m_vendor = vendor;
+}
+void OSQLBackEnd::setLicense( const QString & license ) {
+    m_license = license;
+}
+void OSQLBackEnd::setLibrary( const QCString& lib ) {
+    m_lib = lib;
+}
+void OSQLBackEnd::setDefault( bool def) {
+    m_default = def;
+}
+void OSQLBackEnd::setPreference( int pref ) {
+    m_pref = pref;
+}
diff --git a/libopie2/opiedb/osqlbackend.h b/libopie2/opiedb/osqlbackend.h
new file mode 100644
index 0000000..ad879a4
--- a/dev/null
+++ b/libopie2/opiedb/osqlbackend.h
@@ -0,0 +1,75 @@
+
+#ifndef OSQL_BACKEND_H
+#define OSQL_BACKEND_H
+
+#include <qcstring.h>
+#include <qstring.h>
+#include <qvaluelist.h>
+
+/**
+ * OSQLBackEnd represents an available backend
+ * to the Opie Database Service
+ * It's used to easily extend OSQL services by
+ * 3rd party plugins.
+ * It's used to show
+ */
+class OSQLBackEnd  /*: public QShared */ {
+public:
+    typedef QValueList<OSQLBackEnd> ValueList;
+    /**
+     * A basic c'tor
+     * @param name the user visible name of the service
+     * @param vendor the vendor of the service
+     * @param license the license of the service
+     * @param library what is the name of lib if builtin it's builtin
+     */
+    OSQLBackEnd( const QString& name = QString::null,
+                 const QString& vendor = QString::null,
+                 const QString& license = QString::null,
+                 const QCString& library = QCString() );
+    OSQLBackEnd( const OSQLBackEnd& );
+    OSQLBackEnd &operator=( const OSQLBackEnd& );
+    bool operator==(const OSQLBackEnd& );
+
+    ~OSQLBackEnd();
+
+    /** @return the name */
+    QString name()const;
+
+    /** @return the vendor */
+    QString vendor()const;
+
+    /** @return the license */
+    QString license()const;
+
+    /** @return the name of the library */
+    QCString library() const;
+
+    bool isDefault()const;
+    int preference()const;
+
+    /** @param name the name to set */
+    void setName( const QString& name );
+
+    /** @param vendor the vendor to set */
+    void setVendor( const QString& vendor );
+
+    /** @param license the license applied */
+    void setLicense( const QString& license );
+
+    /** @param the lib to set */
+    void setLibrary( const QCString& lib );
+
+    void setDefault( bool );
+    void setPreference( int );
+
+private:
+    QString m_name;
+    QString m_vendor;
+    QString m_license;
+    QCString m_lib;
+    bool m_default :1;
+    int m_pref;
+};
+
+#endif
diff --git a/libopie2/opiedb/osqlbackendmanager.cpp b/libopie2/opiedb/osqlbackendmanager.cpp
new file mode 100644
index 0000000..0f261b9
--- a/dev/null
+++ b/libopie2/opiedb/osqlbackendmanager.cpp
@@ -0,0 +1,99 @@
+#include <qdir.h>
+#include <qfile.h>
+#include <qmap.h>
+
+#include "osqlbackendmanager.h"
+
+namespace {
+    class Config {
+        typedef QMap<QString, QString> List;
+    public:
+        Config( const QString& fileName );
+        /**
+         * Quite simple layout in nature
+         * BeginFile
+         * Key = Value
+         */
+        bool load();
+        QString value( const QString& key );
+    private:
+        List m_list;
+        QString m_fileName;
+    };
+    Config::Config( const QString& fileName )
+        : m_fileName( fileName ) {
+    }
+
+    bool Config::load() {
+        if (!QFile::exists( m_fileName ) )
+            return false;
+        QFile file( m_fileName );
+        if (!file.open(IO_ReadOnly ) )
+            return false;
+        QStringList list = QStringList::split( '\n', file.readAll() );
+        QStringList::Iterator it;
+        QString line;
+        for (it =  list.begin(); it != list.end(); ++it ) {
+            line = (*it).stripWhiteSpace();
+            qWarning("Anonymous::Config:" + line );
+            QStringList test = QStringList::split(' ', line );
+            m_list.insert( test[0], test[2] );
+        }
+        return true;
+    }
+    QString Config::value( const QString& key ) {
+        return m_list[key];
+    }
+};
+OSQLBackEndManager::OSQLBackEndManager( const QStringList& path )
+    :m_path( path )
+{
+}
+OSQLBackEndManager::~OSQLBackEndManager() {
+}
+/**
+ * scan dirs
+ */
+OSQLBackEnd::ValueList OSQLBackEndManager::scan() {
+    OSQLBackEnd::ValueList list;
+    if (!m_path.isEmpty() ) {
+        QStringList::Iterator it;
+        for ( it = m_path.begin(); it != m_path.end(); ++it ) {
+            list += scanDir( (*it) );
+        }
+    }
+    return list;
+}
+/**
+ * scan a specified dir for *.osql
+ */
+OSQLBackEnd::ValueList OSQLBackEndManager::scanDir( const QString& dirName ) {
+    OSQLBackEnd::ValueList list;
+    QDir dir( dirName );
+    if (dir.exists() ) {
+        QStringList files = dir.entryList( "*.osql" );
+        QStringList::Iterator it;
+        for ( it = files.begin(); it != files.end(); ++it ) {
+            list.append( file2backend( (*it) ) );
+        }
+    }
+    return list;
+}
+
+/**
+ * read a config file and convert it to a OSQLBackEnd
+ */
+OSQLBackEnd OSQLBackEndManager::file2backend( const QString& file ) {
+    OSQLBackEnd end;
+    qWarning("fileName: " + file  );
+    Config cfg( file );
+    if (cfg.load() ) {
+        end.setName( cfg.value( "Name") );
+        end.setVendor( cfg.value("Vendor") );
+        end.setLicense( cfg.value("License") );
+        end.setLibrary( cfg.value("Library").local8Bit() );
+        end.setDefault( cfg.value("Default").toInt() );
+        end.setPreference( cfg.value("Preference").toInt() );
+    }
+    return end;
+}
diff --git a/libopie2/opiedb/osqlbackendmanager.h b/libopie2/opiedb/osqlbackendmanager.h
new file mode 100644
index 0000000..bc357a9
--- a/dev/null
+++ b/libopie2/opiedb/osqlbackendmanager.h
@@ -0,0 +1,20 @@
+#ifndef OSQL_BACKEND_MANAGER_H
+#define OSQL_BACKEND_MANAGER_H
+
+#include <qstringlist.h>
+
+#include "osqlbackend.h"
+
+class OSQLBackEndManager {
+public:
+    OSQLBackEndManager(const QStringList& path );
+    ~OSQLBackEndManager();
+    OSQLBackEnd::ValueList scan();
+private:
+    OSQLBackEnd::ValueList scanDir( const QString& dir );
+    OSQLBackEnd file2backend( const QString& file );
+    class OSQLBackEndManagerPrivate;
+    OSQLBackEndManagerPrivate* d;
+    QStringList m_path;
+};
+#endif
diff --git a/libopie2/opiedb/osqldriver.cpp b/libopie2/opiedb/osqldriver.cpp
new file mode 100644
index 0000000..258c116
--- a/dev/null
+++ b/libopie2/opiedb/osqldriver.cpp
@@ -0,0 +1,13 @@
+#include <qpe/qlibrary.h>
+
+#include "osqldriver.h"
+
+OSQLDriver::OSQLDriver( QLibrary* lib )
+: QObject(), m_lib(lib) {
+}
+OSQLDriver::~OSQLDriver() {
+    delete m_lib;
+}
+bool OSQLDriver::sync() {
+    return true;
+}
diff --git a/libopie2/opiedb/osqldriver.h b/libopie2/opiedb/osqldriver.h
new file mode 100644
index 0000000..68d8ee6
--- a/dev/null
+++ b/libopie2/opiedb/osqldriver.h
@@ -0,0 +1,87 @@
+#ifndef OSQL_DRIVER_H
+#define OSQL_DRIVER_H
+
+#include <qobject.h>
+#include <qstring.h>
+
+#include "osqltable.h"
+
+class QLibrary;
+class OSQLResult;
+class OSQLQuery;
+class OSQLError;
+
+/**
+ * A OSQLDriver implements the communication with
+ * a database.
+ * After you queried and loaded a driver you can
+ * set some informations and finally try to open
+ * the database
+ *
+ */
+class OSQLDriver : public QObject{
+    Q_OBJECT
+public:
+    enum Capabilities { RowID=0 };
+    /**
+     * OSQLDriver constructor. It takes the QLibrary
+     * as parent.
+     *
+     */
+    OSQLDriver( QLibrary* lib=0 );
+
+    virtual ~OSQLDriver();
+    /**
+     * Id returns the identifier of the OSQLDriver
+     */
+    virtual QString id()const = 0;
+
+    /**
+     * set the UserName to the database
+     */
+    virtual void setUserName( const QString& ) = 0;
+
+    /**
+     * set the PassWord to the database
+     */
+    virtual void setPassword( const QString& )= 0;
+
+    /**
+     * set the Url
+     */
+    virtual void setUrl( const QString& ) = 0;
+
+    /**
+     * setOptions
+     */
+    virtual void setOptions( const QStringList& ) = 0;
+
+    /**
+     * tries to open a connection to the database
+     */
+    virtual bool open() = 0;
+    virtual bool close() = 0;
+
+    virtual OSQLError lastError() = 0;
+
+    /**
+     * Query the Database with a OSQLQuery
+     * OSQLResult holds the result
+     */
+    virtual OSQLResult query( OSQLQuery* ) = 0;
+
+    /**
+     * Get a list of tables
+     */
+    virtual OSQLTable::ValueList tables() const = 0l;
+    virtual bool sync();
+
+
+private:
+    QLibrary* m_lib;
+    class OSQLDriverPrivate;
+    OSQLDriverPrivate *d;
+
+};
+
+#endif
diff --git a/libopie2/opiedb/osqlerror.cpp b/libopie2/opiedb/osqlerror.cpp
new file mode 100644
index 0000000..3890a50
--- a/dev/null
+++ b/libopie2/opiedb/osqlerror.cpp
@@ -0,0 +1,23 @@
+#include "osqlerror.h"
+
+OSQLError::OSQLError( const QString& driverText,
+                      const QString& driverDatabaseText,
+                      int type, int subType )
+    : m_drvText( driverText ), m_drvDBText( driverDatabaseText ),
+      m_type( type ), m_number( subType )
+{
+}
+OSQLError::~OSQLError() {
+}
+QString OSQLError::driverText()const {
+    return m_drvText;
+}
+QString OSQLError::databaseText()const {
+    return m_drvDBText;
+}
+int OSQLError::type()const {
+    return m_type;
+}
+int OSQLError::subNumber()const {
+    return m_number;
+}
diff --git a/libopie2/opiedb/osqlerror.h b/libopie2/opiedb/osqlerror.h
new file mode 100644
index 0000000..35a4368
--- a/dev/null
+++ b/libopie2/opiedb/osqlerror.h
@@ -0,0 +1,59 @@
+#ifndef OSQL_ERROR_H
+#define OSQL_ERROR_H
+
+#include <qstring.h>
+#include <qvaluelist.h>
+
+/**
+ * OSQLError is the base class of all errors
+ */
+class OSQLError {
+public:
+    typedef QValueList<OSQLError> ValueList;
+    enum Type { None = 0, // NoError
+                Internal, // Internal Error in OSQL
+                Unknown, // Unknown Error
+                Transaction, // Transaction Error
+                Statement, // Wrong Statement
+                Connection, // Connection Error( lost )
+                Driver // Driver Specefic error
+    };
+    enum DriverError {
+        DriverInternal=0, // internal DriverError
+        Permission, // Permission Problem
+        Abort, // Abort of the SQL
+        Busy, // Busy Error
+        Locked, // Locked
+        NoMem, // No Memory
+        ReadOnly, // Database is read only
+        Interrupt, // Interrupt
+        IOErr, // IO Error
+        Corrupt, // Database Corruption
+        NotFound, // Table not Found
+        Full, // Full
+        CantOpen, // Can not open Table/Database
+        Protocol, // internal protocol error
+        Schema, // schema changed
+        TooBig, // Data too big
+        Mismatch, // Type mismatch
+        Misuse // misuse
+    };
+    OSQLError( const QString& driverText = QString::null,
+               const QString& driverDatabaseText = QString::null,
+               int type = None, int subNumber = -1 );
+    ~OSQLError();
+
+    QString driverText()const;
+    QString databaseText()const;
+    int type()const;
+    int subNumber()const;
+private:
+    QString m_drvText;
+    QString m_drvDBText;
+    int m_type;
+    int m_number;
+    class OSQLErrorPrivate;
+    OSQLErrorPrivate* d;
+};
+
+#endif
diff --git a/libopie2/opiedb/osqlitedriver.cpp b/libopie2/opiedb/osqlitedriver.cpp
new file mode 100644
index 0000000..9214ad3
--- a/dev/null
+++ b/libopie2/opiedb/osqlitedriver.cpp
@@ -0,0 +1,126 @@
+#include <stdlib.h>
+
+#include "osqlresult.h"
+#include "osqlquery.h"
+#include "osqlitedriver.h"
+
+
+namespace {
+    struct Query {
+        OSQLError::ValueList errors;
+        OSQLResultItem::ValueList items;
+        OSQLiteDriver *driver;
+    };
+}
+
+OSQLiteDriver::OSQLiteDriver( QLibrary *lib )
+    : OSQLDriver( lib )
+{
+    m_sqlite = 0l;
+}
+OSQLiteDriver::~OSQLiteDriver() {
+    close();
+}
+
+QString OSQLiteDriver::id()const {
+    return QString::fromLatin1("SQLite");
+}
+
+void OSQLiteDriver::setUserName( const QString& ) {}
+void OSQLiteDriver::setPassword( const QString& ) {}
+
+void OSQLiteDriver::setUrl( const QString& url ) {
+    m_url = url;
+}
+void OSQLiteDriver::setOptions( const QStringList& ) {
+}
+/*
+ * try to open a db specified via setUrl
+ * and options
+ */
+bool OSQLiteDriver::open() {
+    char *error;
+    qWarning("about to open");
+    m_sqlite = sqlite_open(m_url.local8Bit(),
+                           0,
+                           &error );
+
+    /* failed to open */
+    if (m_sqlite == 0l ) {
+        // FIXME set the last error
+        qWarning("error:%s",  error );
+        free( error );
+        return false;
+    }
+    return true;
+}
+/* close the db
+ * sqlite closes them without
+ * telling failure or success
+ */
+bool OSQLiteDriver::close() {
+    if (m_sqlite )
+        sqlite_close( m_sqlite ), m_sqlite=0l;
+
+    return true;
+}
+/* Query */
+OSQLResult OSQLiteDriver::query( OSQLQuery* qu) {
+    if ( !m_sqlite ) {
+        // FIXME set error code
+        OSQLResult result( OSQLResult::Failure );
+        return result;
+    }
+    Query query;
+    query.driver = this;
+    char *err;
+    /* SQLITE_OK 0 if return code > 0 == failure */
+    if ( sqlite_exec(m_sqlite, qu->query(),&call_back, &query, &err)  > 0 ) {
+        qWarning("Error while executing");
+        free(err );
+        // FixMe Errors
+    }
+    qWarning("Item count is %d", query.items.count() );
+    OSQLResult result(OSQLResult::Success,
+                      query.items,
+                      query.errors );
+    return result;
+}
+OSQLTable::ValueList OSQLiteDriver::tables() const {
+
+}
+OSQLError OSQLiteDriver::lastError() {
+    OSQLError error;
+    return error;
+};
+/* handle a callback add the row to the global
+ * OSQLResultItem
+ */
+int OSQLiteDriver::handleCallBack( int, char**, char** ) {
+    return 0;
+}
+/* callback_handler add the values to the list*/
+int OSQLiteDriver::call_back( void* voi, int argc,
+                              char** argv, char** columns) {
+    qWarning("Callback with %d items", argc );
+    Query* qu = (Query*)voi;
+
+    //copy them over to a OSQLResultItem
+    QMap<QString, QString> tableString;
+    QMap<int, QString> tableInt;
+    for (int i = 0; i < argc; i++ ) {
+        qWarning("%s|%s", columns[i], argv[i] );
+        tableInt.insert( i, QString::fromLocal8Bit(argv[i] ) );
+        tableString.insert( QString::fromLocal8Bit( columns[i]),
+                            QString::fromLocal8Bit( argv[i] ) );
+
+    }
+    OSQLResultItem item( tableString, tableInt );
+    qu->items.append( item );
+
+    return ((Query*)voi)->driver->handleCallBack( argc,
+                                                  argv,
+                                                  columns );
+
+
+}
diff --git a/libopie2/opiedb/osqlitedriver.h b/libopie2/opiedb/osqlitedriver.h
new file mode 100644
index 0000000..6984539
--- a/dev/null
+++ b/libopie2/opiedb/osqlitedriver.h
@@ -0,0 +1,34 @@
+#ifndef OSQL_LITE_DRIVER_H
+#define OSQL_LITE_DRIVER_H
+
+#include <sqlite.h>
+
+#include "osqldriver.h"
+#include "osqlerror.h"
+#include "osqlresult.h"
+
+class OSQLiteDriver : public OSQLDriver {
+    Q_OBJECT
+public:
+    OSQLiteDriver( QLibrary *lib = 0l );
+    ~OSQLiteDriver();
+    QString id()const;
+    void setUserName( const QString& );
+    void setPassword( const QString& );
+    void setUrl( const QString& url );
+    void setOptions( const QStringList& );
+    bool open();
+    bool close();
+    OSQLError lastError();
+    OSQLResult query( OSQLQuery* );
+    OSQLTable::ValueList tables()const;
+private:
+    OSQLError m_lastE;
+    OSQLResult m_result;
+    OSQLResultItem m_items;
+    int handleCallBack( int, char**, char** );
+    static int call_back( void*, int, char**, char** );
+    QString m_url;
+    sqlite *m_sqlite;
+};
+#endif
diff --git a/libopie2/opiedb/osqlmanager.cpp b/libopie2/opiedb/osqlmanager.cpp
new file mode 100644
index 0000000..b0fea04
--- a/dev/null
+++ b/libopie2/opiedb/osqlmanager.cpp
@@ -0,0 +1,83 @@
+
+#include <stdlib.h>
+
+#include "osqlbackend.h"
+#include "osqldriver.h"
+#include "osqlmanager.h"
+#include "osqlbackendmanager.h"
+#include "osqlitedriver.h"
+
+OSQLManager::OSQLManager() {
+}
+OSQLBackEnd::ValueList OSQLManager::queryBackEnd() {
+    m_list.clear();
+    QString opie = QString::fromLatin1( getenv("OPIEDIR") );
+    QString qpe = QString::fromLatin1( getenv("QPEDIR") );
+
+    if ( !m_path.contains(opie) && !opie.isEmpty() )
+        m_path << opie;
+    if ( !m_path.contains(qpe) && !qpe.isEmpty() )
+        m_path << qpe;
+
+    OSQLBackEndManager mng( m_path );
+    m_list = mng.scan();
+    m_list += builtIn();
+
+    return m_list;
+}
+/*
+ * loading dso's is currently not enabled due problems with QLibrary
+ * beeing in libqpe and not libqte
+ */
+OSQLDriver* OSQLManager::load( const QString& name ) {
+    OSQLDriver* driver = 0l;
+
+    if ( name == "SQLite" ) {
+        driver = new OSQLiteDriver();
+    }
+    return driver;
+}
+/*
+ * same as above
+ */
+OSQLDriver* OSQLManager::load( const OSQLBackEnd& end) {
+    OSQLDriver *driver = 0l;
+    if ( end.library() == "builtin" &&
+         end.name() == "SQLite" )
+        driver = new OSQLiteDriver();
+
+    return driver;
+}
+/*
+ * let's find the a default with the highes preference
+ */
+OSQLDriver* OSQLManager::standard() {
+    OSQLDriver* driver =0l;
+    if ( m_list.isEmpty() ) queryBackEnd();
+    OSQLBackEnd::ValueList::Iterator it;
+    OSQLBackEnd back;
+    for ( it = m_list.begin(); it != m_list.end(); ++it ) {
+        if ( (*it).isDefault() &&
+             back.preference() < (*it).preference() ) {
+            back = (*it);
+        }
+    }
+    driver = load( back );
+    return driver;
+}
+void OSQLManager::registerPath( const QString& path ) {
+    m_path << path;
+}
+bool OSQLManager::unregisterPath( const QString& path ) {
+    m_path.remove( path );
+    return true;
+}
+OSQLBackEnd::ValueList OSQLManager::builtIn()const {
+    OSQLBackEnd::ValueList list;
+    // create the OSQLiteBackend
+    OSQLBackEnd back("SQLite","Opie e.V.","GPL", "builtin" );
+    back.setDefault( true );
+    back.setPreference( 50 );
+    list.append( back );
+    return list;
+}
diff --git a/libopie2/opiedb/osqlmanager.h b/libopie2/opiedb/osqlmanager.h
new file mode 100644
index 0000000..b3d8d69
--- a/dev/null
+++ b/libopie2/opiedb/osqlmanager.h
@@ -0,0 +1,62 @@
+
+#ifndef OSQL_MANAGER_H
+#define OSQL_MANAGER_H
+
+#include <qobject.h>
+
+#include "osqlbackend.h"
+
+/**
+ * OSQLManager is responsible for loading
+ * and unloading, querying different OSQL
+ * services
+ * Load a OSQLDriver and delete it yourself
+ *
+ */
+class OSQLDriver;
+class OSQLManager : public QObject {
+    Q_OBJECT
+public:
+    /**
+     * Empty c'tor
+     */
+    OSQLManager();
+
+    /**
+     * Query the Manager for different backends
+     */
+    OSQLBackEnd::ValueList queryBackEnd();
+
+    /**
+     * Load a backend with it's name from param name
+     */
+    OSQLDriver* load( const QString& name );
+
+    /**
+     * Load a OSQLDevice from const reference of OSQLBackEnd
+     */
+    OSQLDriver* load( const OSQLBackEnd& );
+
+    /**
+     * loads the Opie standard backend
+     */
+    OSQLDriver *standard();
+
+    /**
+     * register path to the search path list
+     * When querying for services we scan all the
+     * registered path for backends
+     */
+    void registerPath( const QString& path );
+
+    /**
+     * unregisterPath from the search path list
+     */
+    bool unregisterPath( const QString& path );
+private:
+    OSQLBackEnd::ValueList builtIn()const;
+    OSQLBackEnd::ValueList m_list;
+    QStringList m_path;
+};
+
+#endif
diff --git a/libopie2/opiedb/osqlquery.cpp b/libopie2/opiedb/osqlquery.cpp
new file mode 100644
index 0000000..ecd53f2
--- a/dev/null
+++ b/libopie2/opiedb/osqlquery.cpp
@@ -0,0 +1,17 @@
+
+#include "osqlquery.h"
+
+OSQLQuery::OSQLQuery() {
+}
+OSQLQuery::~OSQLQuery() {
+}
+
+OSQLRawQuery::OSQLRawQuery(const QString& query)
+    : OSQLQuery(), m_query( query ) {
+
+}
+OSQLRawQuery::~OSQLRawQuery() {
+}
+QString OSQLRawQuery::query()const {
+    return m_query;
+}
diff --git a/libopie2/opiedb/osqlquery.h b/libopie2/opiedb/osqlquery.h
new file mode 100644
index 0000000..63c26b0
--- a/dev/null
+++ b/libopie2/opiedb/osqlquery.h
@@ -0,0 +1,122 @@
+
+#ifndef OSQL_QUERY_H
+#define OSQL_QUERY_H
+
+#include <qmap.h>
+#include <qvaluelist.h>
+#include <qstring.h>
+
+
+/** I'm not happy with them
+class OSQLQueryOrder {
+public:
+    typedef QValueList<OSQLQueryOrder> ValueList;
+    OSQLQueryOrder(const QString& table = QString::null );
+    OSQLQueryOrder( const OSQLQueryOrder& );
+    ~OSQLQueryOrder();
+    void setOrderFields( const QStringList& list );
+    void setValue( const QString& fieldName, const QString& Value );
+    void setValues( const QMap<QString, QString>& );
+    QMap<QString, QString> orders() const;
+    QString orderStatement()const;
+    OSQLQueryOrder &operator=(const OSQLQueryOrder& );
+private:
+    QMap<QString, QString> m_fields;
+    class OSQLQueryOrderPrivate;
+    OSQLQueryOrderPrivate* d;
+};
+class OSQLWhere {
+public:
+    typedef QValueList<OSQLWhere> ValueList;
+    enum Vergleiche { Equal = 0, Like, Greater, GreaterEqual,
+                      Smaller, SmallerEqual };
+    OSQLWhere(const QString& table = QString::null );
+    ~OSQLWhere();
+    void setExpression(const QString& key, enum Vergleiche, const QString& );
+    QString statement()const;
+private:
+    int m_vergleich;
+    const QString& m_left;
+    const QString& m_right;
+
+};
+*/
+class OSQLQuery {
+public:
+    OSQLQuery();
+    virtual ~OSQLQuery();
+
+    virtual QString query()const = 0;
+};
+
+class OSQLRawQuery : public OSQLQuery {
+public:
+    OSQLRawQuery( const QString& query );
+    ~OSQLRawQuery();
+    QString query() const;
+private:
+    class OSQLRawQueryPrivate;
+    OSQLRawQueryPrivate* d;
+    QString m_query;
+
+};
+/* I'm not happy with them again
+class OSQLSelectQuery : public OSQLQuery {
+public:
+    OSQLSelectQuery();
+    ~OSQLSelectQuery();
+    void setTables( const QStringList& allTablesToQuery );
+    void setValues( const QString& table, const QStringList& columns );
+    void setOrder( const OSQLSelectQuery& );
+    void setOrderList( const OSQLQueryOrder::ValueList& );
+    void setWhereList( const OSQLWhere& );
+    void setWhereList( const OSQLWhere::ValueList& );
+    QString query()const;
+private:
+    QStringList m_tables;
+    QMap<QString, QStringList> m_values;
+    OSQLQueryOrder::ValueList m_order;
+    OSQLWhere::ValueList m_where;
+    class OSQLSelectQueryPrivate;
+    OSQLSelectQueryPrivate* d;
+};
+class OSQLInsertQuery : public OSQLQuery  {
+public:
+    OSQLInsertQuery(const QString& table);
+    ~OSQLInsertQuery();
+    void setInserFields( const QStringList& );
+    void setValue( const QString& field,  const QString& value );
+    void setValues(const QMap<QString, QString>& );
+    QString query()const;
+private:
+    QString m_table;
+    QStringList m_fields;
+    QMap<QString, QString> m_values;
+};
+class OSQLDeleteQuery : public OSQLQuery {
+public:
+    OSQLDeleteQuery(const QString& table);
+    ~OSQLDeleteQuery();
+    void setWhere( const OSQLWhere& );
+    void setWheres( const OSQLWhere::ValueList& );
+    QString query()const;
+private:
+    QString m_table;
+    OSQLWhere::ValueList m_where;
+
+};
+class OSQLUpdateQuery : public OSQLQuery {
+public:
+    OSQLUpdateQuery( const QString& table );
+    ~OSQLUpdateQuery();
+    void setWhere( const OSQLWhere& );
+    void setWheres( const OSQLWhere::ValueList& );
+    */
+    /* replaces all previous set Values */
+    /*
+    void setValue( const QString& field, const QString& value );
+    void setValue( const QMap<QString, QString> &fields );
+    QString query() const;
+};
+*/
+#endif
diff --git a/libopie2/opiedb/osqlresult.cpp b/libopie2/opiedb/osqlresult.cpp
new file mode 100644
index 0000000..490fb45
--- a/dev/null
+++ b/libopie2/opiedb/osqlresult.cpp
@@ -0,0 +1,127 @@
+
+#include "osqlquery.h"
+#include "osqlresult.h"
+
+OSQLResultItem::OSQLResultItem( const TableString& string,
+                                const TableInt& Int)
+    : m_string( string ), m_int( Int )
+{
+
+}
+OSQLResultItem::~OSQLResultItem() {
+}
+OSQLResultItem::OSQLResultItem( const OSQLResultItem& item) {
+    *this = item;
+}
+OSQLResultItem &OSQLResultItem::operator=( const OSQLResultItem& other) {
+    m_string = other.m_string;
+    m_int = other.m_int;
+    return *this;
+}
+OSQLResultItem::TableString OSQLResultItem::tableString()const{
+    return m_string;
+}
+OSQLResultItem::TableInt OSQLResultItem::tableInt()const {
+    return m_int;
+}
+QString OSQLResultItem::data( const QString& columnName, bool *ok ) {
+    TableString::Iterator it = m_string.find( columnName );
+
+    /* if found */
+    if ( it != m_string.end() ) {
+        if ( ok ) *ok = true;
+        return it.data();
+    }else{
+        if ( ok )  *ok = false;
+        return QString::null;
+    }
+
+}
+QString OSQLResultItem::data( int column, bool *ok ) {
+    TableInt::Iterator it = m_int.find( column );
+
+    /* if found */
+    if ( it != m_int.end() ) {
+        if ( ok ) *ok = true;
+        return it.data();
+    }else{
+        if ( ok )  *ok = false;
+        return QString::null;
+    }
+}
+/*
+ * DateFormat is 'YYYY-MM-DD'
+ */
+QDate OSQLResultItem::dataToDate( const QString& column, bool *ok ) {
+    QDate date = QDate::currentDate();
+    QString str = data( column,  ok );
+    if (!str.isEmpty() ) {
+      ;// convert
+    }
+    return date;
+}
+QDate OSQLResultItem::dataToDate( int column,  bool *ok ) {
+    QDate date = QDate::currentDate();
+    QString str = data( column,  ok );
+    if (!str.isEmpty() ) {
+      ;// convert
+    }
+    return date;
+
+}
+QDateTime OSQLResultItem::dataToDateTime( const QString& column, bool *ok ) {
+    QDateTime time = QDateTime::currentDateTime();
+    return time;
+}
+QDateTime OSQLResultItem::dataToDateTime( int column, bool *ok ) {
+    QDateTime time = QDateTime::currentDateTime();
+    return time;
+}
+
+OSQLResult::OSQLResult( enum State state,
+                        const OSQLResultItem::ValueList& list,
+                        const OSQLError::ValueList& error )
+    : m_state( state ), m_list( list ), m_error( error )
+{
+
+}
+OSQLResult::~OSQLResult() {
+
+}
+OSQLResult::State OSQLResult::state()const {
+    return m_state;
+}
+void OSQLResult::setState( OSQLResult::State state ) {
+    m_state = state;
+}
+OSQLError::ValueList OSQLResult::errors()const {
+    return m_error;
+}
+void OSQLResult::setErrors( const OSQLError::ValueList& err ) {
+    m_error = err;
+}
+OSQLResultItem::ValueList OSQLResult::results()const {
+    return m_list;
+}
+void OSQLResult::setResults( const OSQLResultItem::ValueList& result ) {
+    m_list = result;
+}
+OSQLResultItem OSQLResult::first() {
+    it = m_list.begin();
+    return (*it);
+}
+OSQLResultItem OSQLResult::next(){
+    ++it;
+    return (*it);
+}
+bool OSQLResult::atEnd(){
+    if ( it == m_list.end() )
+        return true;
+
+    return false;
+}
+OSQLResultItem::ValueList::ConstIterator OSQLResult::iterator()const {
+    OSQLResultItem::ValueList::ConstIterator it;
+    it = m_list.begin();
+    return it;
+}
diff --git a/libopie2/opiedb/osqlresult.h b/libopie2/opiedb/osqlresult.h
new file mode 100644
index 0000000..9c9efa2
--- a/dev/null
+++ b/libopie2/opiedb/osqlresult.h
@@ -0,0 +1,112 @@
+#ifndef OSQL_RESULT_H
+#define OSQL_RESULT_H
+
+#include <qdatetime.h>
+#include <qmap.h>
+#include <qvaluelist.h>
+
+
+#include "osqlerror.h"
+/**
+ * ResultItem  represents one row of the resulting answer
+ */
+class OSQLResultItem {
+public:
+    typedef QValueList<OSQLResultItem> ValueList;
+    /**
+     * TableString is used to establish the relations
+     * between the column name and the real item
+     */
+    typedef QMap<QString, QString> TableString;
+
+    /**
+     * TableInt is used to establish a relation between a
+     * position of a column and the row value
+     */
+    typedef QMap<int, QString> TableInt;
+
+    /**
+     * Default c'tor. It has a TableString and a TableInt
+     */
+    OSQLResultItem(const TableString& = TableString(),
+                   const TableInt& = TableInt() );
+    OSQLResultItem( const OSQLResultItem& );
+    ~OSQLResultItem();
+    OSQLResultItem &operator=( const OSQLResultItem& );
+    /**
+     * returns the TableString
+     */
+    TableString tableString()const;
+
+    /**
+     * returns the TableInt
+     */
+    TableInt tableInt() const;
+
+    /**
+     * retrieves the Data from columnName
+     *
+     */
+    QString data( const QString& columnName, bool *ok = 0);
+
+    /**
+     * QString for column number
+     */
+    QString data(int columnNumber, bool *ok = 0);
+
+    /**
+     * Date conversion from columnName
+     */
+    QDate dataToDate( const QString& columnName, bool *ok = 0 );
+
+    /**
+     * Date conversion from column-number
+     */
+    QDate dataToDate( int columnNumber, bool *ok = 0 );
+
+    QDateTime dataToDateTime( const QString& columName, bool *ok = 0 );
+    QDateTime dataToDateTime( int columnNumber, bool *ok = 0 );
+private:
+    TableString m_string;
+    TableInt m_int;
+};
+
+/**
+ * the OSQLResult
+ * either a SQL statement failed or succeeded
+ */
+class OSQLResult {
+public:
+    /** The State of a Result */
+    enum State{ Success = 0, Failure,Undefined };
+
+    /**
+     * default c'tor
+     * @param state The State of the Result
+     * @param r ResultItems
+     * @prarm errors the Errors a OSQLResult created
+     */
+    OSQLResult( enum State state = Undefined,
+                const OSQLResultItem::ValueList& r= OSQLResultItem::ValueList(),
+                const OSQLError::ValueList& errors = OSQLError::ValueList() );
+    ~OSQLResult();
+    State state()const;
+    OSQLError::ValueList errors()const;
+    OSQLResultItem::ValueList results()const;
+
+    void setState( enum State state );
+    void setErrors( const OSQLError::ValueList& error );
+    void setResults( const OSQLResultItem::ValueList& result );
+
+    OSQLResultItem first();
+    OSQLResultItem next();
+    bool atEnd();
+    OSQLResultItem::ValueList::ConstIterator iterator()const;
+private:
+    enum State m_state;
+    OSQLResultItem::ValueList m_list;
+    OSQLError::ValueList m_error;
+    OSQLResultItem::ValueList::Iterator it;
+};
+
+#endif
diff --git a/libopie2/opiedb/osqltable.cpp b/libopie2/opiedb/osqltable.cpp
new file mode 100644
index 0000000..cde40f4
--- a/dev/null
+++ b/libopie2/opiedb/osqltable.cpp
@@ -0,0 +1,46 @@
+#include "osqltable.h"
+
+OSQLTableItem::OSQLTableItem() {}
+OSQLTableItem::OSQLTableItem( enum Type type,
+                              const QString& field,
+                              const QVariant& var)
+    : m_type( type ), m_field( field ), m_var( var )
+{
+
+}
+OSQLTableItem::~OSQLTableItem() {}
+OSQLTableItem::OSQLTableItem( const OSQLTableItem& item) {
+    *this = item;
+}
+OSQLTableItem &OSQLTableItem::operator=(const OSQLTableItem& other) {
+    m_var = other.m_var;
+    m_field = other.m_field;
+    m_type = other.m_type;
+    return *this;
+}
+QString OSQLTableItem::fieldName()const{
+    return m_field;
+}
+OSQLTableItem::Type OSQLTableItem::type()const {
+    return m_type;
+}
+QVariant OSQLTableItem::more()const {
+    return m_var;
+}
+
+OSQLTable::OSQLTable( const QString& tableName )
+    : m_table( tableName )
+{
+
+}
+OSQLTable::~OSQLTable() {
+}
+void OSQLTable::setColumns( const OSQLTableItem::ValueList& list) {
+    m_list = list;
+}
+OSQLTableItem::ValueList OSQLTable::columns()const {
+    return m_list;
+}
+QString OSQLTable::tableName()const {
+    return m_table;
+}
diff --git a/libopie2/opiedb/osqltable.h b/libopie2/opiedb/osqltable.h
new file mode 100644
index 0000000..87f7e74
--- a/dev/null
+++ b/libopie2/opiedb/osqltable.h
@@ -0,0 +1,95 @@
+#ifndef OSQL_TABLE_H
+#define OSQL_TABLE_H
+
+#include <qstring.h>
+#include <qvaluelist.h>
+#include <qvariant.h>
+
+/**
+ * OSQLTableItem saves one column of a complete
+ * table
+ */
+class OSQLTableItem {
+public:
+    typedef QValueList<OSQLTableItem> ValueList;
+    /**
+     * Type kinds ( to be extended )
+     */
+    enum Type { Undefined=-1, Integer=0, BigInteger =1,
+                Float = 2, VarChar = 4 };
+    /**
+     * A constructor
+     * @param type the Type of the Column
+     * @param fieldName the Name of the Column
+     * @param var a Variant
+     */
+    OSQLTableItem();
+    OSQLTableItem( enum Type type,
+                   const QString& fieldName,
+                   const QVariant& var= QVariant() );
+
+    /**
+     * copy c'tor
+     */
+    OSQLTableItem( const OSQLTableItem& );
+
+    /**
+     * d'tor
+     */
+    ~OSQLTableItem();
+
+    OSQLTableItem& operator=( const OSQLTableItem& );
+
+    /**
+     * the fieldName
+     */
+    QString fieldName() const;
+
+    /**
+     * the field Type
+     */
+    Type type() const;
+    QVariant more() const;
+private:
+    class OSQLTableItemPrivate;
+    OSQLTableItemPrivate* d;
+    Type m_type;
+    QString m_field;
+    QVariant m_var;
+};
+
+/**
+ * A OSQLTable consists of OSQLTableItems
+ */
+class OSQLTable  {
+public:
+    typedef QValueList<OSQLTable> ValueList;
+
+    /**
+     * @param tableName the Name of the Table
+     */
+    OSQLTable(const QString& tableName);
+
+    /**
+     * d'tor
+     */
+    ~OSQLTable();
+
+    /**
+     * setColumns sets the Columns of the Table
+     */
+    void setColumns( const OSQLTableItem::ValueList& );
+
+    /**
+     * returns all columns of the table
+     */
+    OSQLTableItem::ValueList columns() const;
+
+    QString tableName()const;
+
+private:
+    QString m_table;
+    OSQLTableItem::ValueList m_list;
+};
+
+#endif