[15599] | 1 | /**********************************************************************
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| 2 | *
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[15640] | 3 | * sqlitedbclass.h --
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[15599] | 4 | * Copyright (C) 2008 DL Consulting Ltd
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| 5 | *
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| 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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| 9 | *
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| 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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| 24 | *********************************************************************/
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| 25 |
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[15640] | 26 | #ifndef SQLITEDBCLASS_H
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| 27 | #define SQLITEDBCLASS_H
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[15599] | 28 |
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| 29 |
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[15753] | 30 | #include "sqldbclass.h"
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[15599] | 31 | #include "sqlite3.h"
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| 32 |
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| 33 |
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[15753] | 34 | class sqlitedbclass : public sqldbclass
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[15599] | 35 | {
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| 36 | public:
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[15640] | 37 | sqlitedbclass() { sqlitefile = NULL; }
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| 38 | ~sqlitedbclass();
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[15599] | 39 |
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| 40 | // returns true if opened
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[15643] | 41 | bool opendatabase (const text_t &filename, int mode, int num_retrys, bool need_filelock);
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[15642] | 42 |
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[15599] | 43 | void closedatabase ();
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| 44 |
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[15642] | 45 | void deletekey (const text_t &key);
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[15599] | 46 |
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[15803] | 47 | // returns array of document OIDs
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[16180] | 48 | text_tarray get_documents_with_metadata_value (const text_tarray &metadata_element_names,
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[15836] | 49 | const text_t &metadata_value,
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| 50 | const text_t &sort_by_metadata_element_name);
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[15803] | 51 |
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[15679] | 52 | // returns file extension string
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| 53 | text_t getfileextension ();
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| 54 |
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[15599] | 55 | // returns true on success
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[15643] | 56 | bool getkeydata (const text_t& key, text_t &data);
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| 57 |
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[15642] | 58 | // returns array of keys
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[15631] | 59 | text_tarray getkeys ();
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[15599] | 60 |
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[15752] | 61 | // returns array of values
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[16180] | 62 | text_tarray get_metadata_values (const text_tarray &metadata_element_names,
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[16039] | 63 | const text_t &metadata_value_filter,
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| 64 | const text_t &metadata_value_grouping_expression);
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[15752] | 65 |
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[15642] | 66 | // returns true on success
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[15648] | 67 | bool setkeydata (const text_t &key, const text_t &data);
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[15647] | 68 |
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[15599] | 69 | protected:
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| 70 | text_t openfile;
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| 71 | sqlite3* sqlitefile;
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[15601] | 72 |
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[15849] | 73 | text_t sqlite_safe (const text_t &value_arg);
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| 74 |
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[15637] | 75 | bool sqlexec (const text_t &sql_cmd);
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[15623] | 76 | bool sqlgetarray (const text_t &sql_cmd, vector<text_tmap> &sql_results);
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[15637] | 77 | bool sqltableexists (const text_t &table_name);
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[15599] | 78 | };
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| 79 |
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| 80 |
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| 81 | #endif
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