operator.h

/*
 * Operator functions.
 *
 * Copyright (C) 2013, 2015 Rene Hartmann.
 * See the file COPYING for redistribution information.
 */

#ifndef OPERATOR_H_
#define OPERATOR_H_

#include "object.h"

typedef struct RDB_op_data RDB_operator;
typedef struct RDB_transaction RDB_transaction;
typedef struct RDB_exec_context RDB_exec_context;

typedef int RDB_ro_op_func(int, RDB_object *[], RDB_operator *,
        RDB_exec_context *, RDB_transaction *,
        RDB_object *);

typedef int RDB_upd_op_func(int, RDB_object *[], RDB_operator *,
    RDB_exec_context *, RDB_transaction *);

typedef void RDB_op_cleanup_func(RDB_operator *);

typedef struct RDB_parameter {
    RDB_type *typ;

    RDB_bool update;
} RDB_parameter;

RDB_parameter *
RDB_get_parameter(const RDB_operator *, int);

const char *
RDB_operator_name(const RDB_operator *);

RDB_type *
RDB_operator_type(const RDB_operator *);

int
RDB_operator_param_count(const RDB_operator *);

RDB_type *
RDB_return_type(const RDB_operator *);

const char *
RDB_operator_source(const RDB_operator *);

RDB_parameter *
RDB_get_parameter(const RDB_operator *, int);

const char *
RDB_operator_name(const RDB_operator *);

RDB_type *
RDB_return_type(const RDB_operator *);

const char *
RDB_operator_source(const RDB_operator *);

RDB_object *
RDB_operator_creation_time(RDB_operator *);

void *
RDB_operator_u_data(const RDB_operator *);

void
RDB_set_operator_u_data(RDB_operator *, void *);

void
RDB_set_op_cleanup_fn(RDB_operator *,  RDB_op_cleanup_func*);

RDB_operator *
RDB_new_op_data(const char *, const char *, int, RDB_type *[],
        RDB_type *, RDB_exec_context *);

int
RDB_free_op_data(RDB_operator *, RDB_exec_context *);

RDB_bool
RDB_operator_is_implemented(const RDB_operator *);

#endif /* OPERATOR_H_ */