qofquerycore.h

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/********************************************************************\
 * qofquerycore.h -- API for providing core Query data types        *
 * Copyright (C) 2002 Derek Atkins <warlord@MIT.EDU>                *
 *                                                                  *
 * This program is free software; you can redistribute it and/or    *
 * modify it under the terms of the GNU General Public License as   *
 * published by the Free Software Foundation; either version 2 of   *
 * the License, or (at your option) any later version.              *
 *                                                                  *
 * This program is distributed in the hope that it will be useful,  *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of   *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    *
 * GNU General Public License for more details.                     *
 *                                                                  *
 * You should have received a copy of the GNU General Public License*
 * along with this program; if not, contact:                        *
 *                                                                  *
 * Free Software Foundation           Voice:  +1-617-542-5942       *
 * 59 Temple Place - Suite 330        Fax:    +1-617-542-2652       *
 * Boston, MA  02111-1307,  USA       gnu@gnu.org                   *
 *                                                                  *
\********************************************************************/

#ifndef QOF_QUERYCORE_H
#define QOF_QUERYCORE_H

#include <glib.h>

#include "gnc-numeric.h"
#include "gnc-date.h"
#include "kvp_frame.h"
#include "qofclass.h"

typedef struct _QofQueryPredData QofQueryPredData;

typedef enum {
  QOF_COMPARE_LT = 1,
  QOF_COMPARE_LTE,
  QOF_COMPARE_EQUAL,
  QOF_COMPARE_GT,
  QOF_COMPARE_GTE,
  QOF_COMPARE_NEQ
} QofQueryCompare;

/* Comparisons for QOF_TYPE_STRING */
typedef enum {
  QOF_STRING_MATCH_NORMAL = 1,
  QOF_STRING_MATCH_CASEINSENSITIVE
} QofStringMatch;

typedef enum {
  QOF_DATE_MATCH_NORMAL = 1,
  QOF_DATE_MATCH_DAY
} QofDateMatch;

typedef enum {
  QOF_NUMERIC_MATCH_DEBIT = 1,
  QOF_NUMERIC_MATCH_CREDIT,
  QOF_NUMERIC_MATCH_ANY
} QofNumericMatch;

/* Comparisons for QOF_TYPE_GUID */
typedef enum {
  QOF_GUID_MATCH_ANY = 1,
  QOF_GUID_MATCH_NONE,
  QOF_GUID_MATCH_NULL,
  QOF_GUID_MATCH_ALL,
  QOF_GUID_MATCH_LIST_ANY,
} QofGuidMatch;

typedef enum {
  QOF_CHAR_MATCH_ANY = 1,
  QOF_CHAR_MATCH_NONE
} QofCharMatch;

struct _QofQueryPredData {
  QofType               type_name;  /* QOF_TYPE_* */
  QofQueryCompare       how;
};


QofQueryPredData *qof_query_string_predicate (QofQueryCompare how, 
                                              const char *str,
                                              QofStringMatch options,
                                              gboolean is_regex);

QofQueryPredData *qof_query_date_predicate (QofQueryCompare how,
                                            QofDateMatch options, 
                                            Timespec date);

QofQueryPredData *qof_query_numeric_predicate (QofQueryCompare how,
                                               QofNumericMatch options,
                                               gnc_numeric value);

QofQueryPredData *qof_query_guid_predicate (QofGuidMatch options, GList *guids);
QofQueryPredData *qof_query_int32_predicate (QofQueryCompare how, gint32 val);
QofQueryPredData *qof_query_int64_predicate (QofQueryCompare how, gint64 val);
QofQueryPredData *qof_query_double_predicate (QofQueryCompare how, double val);
QofQueryPredData *qof_query_boolean_predicate (QofQueryCompare how, gboolean val);
QofQueryPredData *qof_query_char_predicate (QofCharMatch options,
                                            const char *chars);
QofQueryPredData *qof_query_collect_predicate (QofGuidMatch options, 
                                            QofCollection *coll);
QofQueryPredData *qof_query_choice_predicate  (QofGuidMatch options, GList *guids);

QofQueryPredData *qof_query_kvp_predicate (QofQueryCompare how,
                                           GSList *path, 
                                           const KvpValue *value);

QofQueryPredData *qof_query_kvp_predicate_path (QofQueryCompare how,
                                                const char *path, 
                                                const KvpValue *value);

QofQueryPredData *qof_query_core_predicate_copy (QofQueryPredData *pdata);

void qof_query_core_predicate_free (QofQueryPredData *pdata);

gboolean qof_query_date_predicate_get_date (QofQueryPredData *pd, Timespec *date);
char * qof_query_core_to_string (QofType, gpointer object, QofParam *getter);

#endif /* QOF_QUERYCORE_H */
/* @} */
/* @} */

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