jdb-selector.h

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/*
 * JULEA - Flexible storage framework
 * Copyright (C) 2019 Benjamin Warnke
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef JULEA_DB_SELECTOR_H
#define JULEA_DB_SELECTOR_H
 
#if !defined(JULEA_DB_H) && !defined(JULEA_DB_COMPILATION)
#error "Only <julea-db.h> can be included directly."
#endif
 
#include <glib.h>
 
G_BEGIN_DECLS
 
enum JDBSelectorMode
{
    J_DB_SELECTOR_MODE_AND,
    J_DB_SELECTOR_MODE_OR
};
 
typedef enum JDBSelectorMode JDBSelectorMode;
 
enum JDBSelectorOperator
{
    // <
    J_DB_SELECTOR_OPERATOR_LT,
    // <=
    J_DB_SELECTOR_OPERATOR_LE,
    // >
    J_DB_SELECTOR_OPERATOR_GT,
    // >=
    J_DB_SELECTOR_OPERATOR_GE,
    // =
    J_DB_SELECTOR_OPERATOR_EQ,
    // !=
    J_DB_SELECTOR_OPERATOR_NE
};
 
typedef enum JDBSelectorOperator JDBSelectorOperator;
 
struct JDBSelector;
 
typedef struct JDBSelector JDBSelector;
 
G_END_DECLS
 
#include <db/jdb-schema.h>
#include <db/jdb-type.h>
 
G_BEGIN_DECLS
 
JDBSelector* j_db_selector_new(JDBSchema* schema, JDBSelectorMode mode, GError** error);
 
JDBSelector* j_db_selector_ref(JDBSelector* selector);
 
void j_db_selector_unref(JDBSelector* selector);
 
G_DEFINE_AUTOPTR_CLEANUP_FUNC(JDBSelector, j_db_selector_unref)
 
 
gboolean j_db_selector_add_field(JDBSelector* selector, gchar const* name, JDBSelectorOperator operator_, gconstpointer value, guint64 length, GError** error);
 
gboolean j_db_selector_add_selector(JDBSelector* selector, JDBSelector* sub_selector, GError** error);
 
gboolean j_db_selector_add_join(JDBSelector* selector, gchar const* selector_field, JDBSelector* sub_selector, gchar const* sub_selector_field, GError** error);
 
G_END_DECLS
 
#endif