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hk_database.h

00001 // ****************************************************************************
00002 // copyright (c) 2000-2004 Horst Knorr <hk_classes@knoda.org>  
00003 // This file is part of the hk_classes library.
00004 // This file may be distributed and/or modified under the terms of the
00005 // GNU Library Public License version 2 as published by the Free Software
00006 // Foundation and appearing in the file COPYING included in the
00007 // packaging of this file.
00008 // This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00009 // WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00010 // ****************************************************************************
00011 #ifndef HK_DATABASE
00012 #define HK_DATABASE
00013 #include <hk_class.h>
00014 #include <list>
00015 #include <vector>
00016 #include <algorithm>
00017 #include "hk_presentation.h"
00018 #include "hk_url.h"
00019 using namespace std;
00020 
00021 class hk_connection;
00022 class hk_datasource;
00023 class hk_data;
00024 class hk_dbvisible;
00025 class hk_actionquery;
00026 class hk_form;
00027 class hk_report;
00028 class hk_dsmodevisible;
00029 class hk_databaseprivate;
00030 class hk_dsquery;
00031 class hk_dstable;
00032 
00033 typedef hk_form* newform_type(hk_database*,hk_class*);
00034 typedef hk_report* newreport_type(hk_database*,hk_class*);
00035 typedef hk_dstable* newtable_type(hk_class*);
00036 typedef hk_dsquery* newquery_type(hk_class*);
00037 
00048 class hk_database:public hk_class
00049 {
00050     friend class hk_datasource;
00051     friend class hk_actionquery;
00052     friend class hk_connection;
00053     friend class hk_dbvisible;
00054     friend class hk_presentation;
00055     public:
00056         virtual     ~hk_database();
00057 
00061         bool    set_name(const hk_string& n);
00062         hk_string   name(void);
00063 
00074         vector<hk_string>* tablelist(bool with_systemtable=false);
00075         
00076         vector<hk_string>* viewlist();
00077         vector<hk_string>* tableviewlist(bool with_systemtable=false);
00078         
00079         
00083         vector<hk_string>* querylist(void);
00087         vector<hk_string>* formlist(void);
00091         vector<hk_string>* reportlist(void);
00096         hk_datasource* new_table(const hk_string& name="",hk_presentation* p=NULL);
00102         hk_datasource* new_resultquery(hk_presentation* p=NULL);
00108         hk_actionquery*   new_actionquery(void);
00109         
00110         
00111         hk_datasource* new_view(const hk_string& name="",hk_presentation* p=NULL);
00112 
00121         hk_datasource*  load_datasource(const hk_string& name,datasourcetype dt=dt_table,hk_presentation* p=NULL);
00122 
00127         bool    delete_table(const hk_string& table,enum_interaction x=interactive);
00128         bool    delete_view(const hk_string& view, enum_interaction x=interactive);
00132         bool    table_exists(const hk_string& tablename);
00133         bool    view_exists(const hk_string& viewname);
00134         bool    query_exists(const hk_string& queryname);
00135 
00139         hk_connection*  connection(void)const{return p_connection;}
00148         ofstream* savestream(const hk_string&name,filetype type,bool ask_before_overwrite=true );
00149         ofstream* savestream(const hk_string&name,filetype type,bool ask_before_overwrite,bool with_header,bool ask_for_new_name=false );
00150 #ifdef HAVE_SSTREAM
00151     stringstream* savestringstream(filetype type);
00152 #else
00153     strstream* savestringstream(filetype type);
00154 #endif
00155         
00156 #ifdef HAVE_SSTREAM
00157     stringstream* savestringstream(filetype type,bool with_header);
00158 #else
00159     strstream* savestringstream(filetype type,bool with_header);
00160 #endif
00161         
00162         
00163          
00170         bool  delete_file(const hk_string& name,filetype type,enum_interaction x=interactive);
00178         hk_presentation* existing_presentation(const hk_string& name, hk_presentation::enum_presentationtype t);
00179         hk_form* existing_form(const hk_string name);
00180         hk_report* existing_report(const hk_string name);
00181 
00188         void save(const hk_string& statement,const hk_string& name,filetype type,bool ask_before_overwrite=true,bool ask_for_new_name=false );
00195         hk_string load(const hk_string& name,filetype type);
00196 
00201         hk_string database_path(void);
00202         hk_string fileendings(filetype e);
00203         hk_string fileendings(objecttype e);
00216         bool copy_table(hk_datasource* fromdatasource,bool schema_and_data,bool replacetable, bool ask,progress_dialogtype* progressdialog=NULL);
00217         bool copy_view(hk_datasource* fromdatasource,progress_dialogtype* progressdialog=NULL,const hk_string& newname="");
00218 
00219 hk_form* new_formvisible(void);
00220 hk_report* new_reportvisible(void);
00221 hk_dstable* new_tablevisible(void);
00222 hk_dsquery* new_queryvisible(void);
00223 static void     set_new_formvisiblefunction(newform_type*);
00224 static void     set_new_reportvisiblefunction(newreport_type*);
00225 static void     set_new_tablevisiblefunction(newtable_type*);
00226 static void     set_new_queryvisiblefunction(newquery_type*);
00227 void set_usewidgetparent(hk_class*);
00234 bool rename_table(const hk_string& originalname, const hk_string& newname,enum_interaction x=interactive);
00242 bool rename_file(const hk_string& originalname, const hk_string& newname,filetype type,enum_interaction x=interactive);
00247 void disable(void);
00248 
00249 
00250 enum enum_storagemode {central,local};
00251 void set_storagemode(filetype, enum_storagemode load,enum_storagemode store);
00252 enum_storagemode storagemode(filetype);
00253 enum_storagemode loadmode(filetype);
00254 bool create_centralstoragetable(void);
00255 bool has_centralstoragetable(void);
00256 hk_string load_local(const hk_string& name,filetype type);
00257 hk_string load_central(const hk_string& name,filetype type);
00258 void save_local(const hk_string& statement,const hk_string& name,filetype type,bool ask_before_overwrite,bool ask_for_new_name);
00259 void save_central(const hk_string& statement,const hk_string& name,filetype type,bool ask_before_overwrite,bool ask_for_new_name);
00260 bool  delete_localfile(const hk_string& name,filetype type,enum_interaction x=interactive);
00261 bool  delete_centralfile(const hk_string& name,filetype type,enum_interaction x=interactive);
00262 vector<hk_string>* filelist(filetype type);
00263 vector<hk_string>* local_filelist(filetype type);
00264 vector<hk_string>* central_filelist(filetype type);
00265 
00266 void save_configuration(void);
00267 
00268 
00269     protected:
00270         hk_database(hk_connection* c);
00271         bool    select_db( const hk_string& newname);
00272         void inform_datasources_before_closing(void);
00276         virtual  void driver_specific_tablelist(void){}
00277         virtual  void driver_specific_viewlist(void){}
00278         virtual hk_datasource* driver_specific_new_table(hk_presentation* p);
00279         virtual hk_datasource* driver_specific_new_view(hk_presentation* p);
00280         virtual hk_datasource* driver_specific_new_resultquery(hk_presentation* p);
00281         virtual hk_actionquery*   driver_specific_new_actionquery(void){return NULL;}
00282         virtual bool    driver_specific_rename_table(const hk_string& oldname,const hk_string& newname){return false;}
00283         virtual bool driver_specific_select_db(void){return false;}
00284         virtual void driver_specific_set_name(void){}
00285         hk_connection* p_connection;
00286         void    ds_remove(hk_data* ds);
00287         virtual void connection_connected(void);
00288         virtual void connection_disconnected(void);
00289 
00290         vector<hk_string> p_tablelist;
00291         vector<hk_string> p_viewlist;
00292         vector<hk_string> p_tableviewlist;
00293         void    dbvisible_add(hk_dbvisible* v);
00294         void    dbvisible_remove(hk_dbvisible* v);
00295         void    clear_visiblelist(void);
00296         virtual void before_source_vanishes(void);
00297         void    presentation_add(hk_presentation* p);
00298         void    presentation_remove(hk_presentation* p);
00299         void load_configuration(void);
00300         virtual void savedata(ostream& s);
00301         virtual void loaddata(const hk_string& definition);
00302         hk_url p_url;
00303     private:
00304         void clear_presentationlist();
00305         void mark_datasources_as_not_handled(void);
00306         void mark_visible_objects_as_not_handled(void);
00307         void inform_datasources_filelist_changes(listtype type);
00308         hk_databaseprivate* p_private;
00309         static newform_type *p_newformfunction;
00310         static newreport_type *p_newreportfunction;
00311         static newtable_type *p_newtablefunction;
00312         static newquery_type *p_newqueryfunction;
00313         void save_storage(ostream&,filetype);
00314         void load_storage(const hk_string&,filetype);
00315         
00316 
00317 } ;
00318 #endif

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