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sdb_item.h 7.73 KB
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DavidLi authored 2019-03-27 13:38 . Fix compiling warnings.
/* Copyright (c) 2018, SequoiaDB and/or its affiliates. All rights reserved.
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef SDB_ITEM__H
#define SDB_ITEM__H
#include <client.hpp>
#include <item.h>
#include <item_cmpfunc.h>
#include "sdb_errcode.h"
class Sdb_item : public Sql_alloc {
public:
Sdb_item() : is_finished(FALSE) {}
virtual ~Sdb_item(){};
virtual int push_sdb_item(Sdb_item *cond_item) {
return SDB_ERR_COND_UNEXPECTED_ITEM;
}
virtual int push_item(Item *cond_item) {
return SDB_ERR_COND_UNEXPECTED_ITEM;
}
virtual int to_bson(bson::BSONObj &obj) = 0;
virtual const char *name() = 0;
virtual bool finished() { return is_finished; };
virtual Item_func::Functype type() = 0;
protected:
bool is_finished;
};
class Sdb_logic_item : public Sdb_item {
public:
Sdb_logic_item() { is_ok = TRUE; }
virtual int push_sdb_item(Sdb_item *cond_item);
virtual int push_item(Item *cond_item);
virtual int to_bson(bson::BSONObj &obj);
virtual const char *name() = 0;
virtual Item_func::Functype type() = 0;
protected:
bson::BSONArrayBuilder children;
bool is_ok;
};
class Sdb_and_item : public Sdb_logic_item {
public:
Sdb_and_item() {}
virtual ~Sdb_and_item() {}
virtual int to_bson(bson::BSONObj &obj);
virtual Item_func::Functype type() { return Item_func::COND_AND_FUNC; }
virtual const char *name() { return "$and"; }
};
class Sdb_or_item : public Sdb_logic_item {
public:
Sdb_or_item() {}
virtual ~Sdb_or_item() {}
virtual Item_func::Functype type() { return Item_func::COND_OR_FUNC; }
virtual const char *name() { return "$or"; }
};
class Sdb_func_item : public Sdb_item {
public:
Sdb_func_item();
virtual ~Sdb_func_item();
virtual int push_sdb_item(Sdb_item *cond_item);
virtual int push_item(Item *cond_item);
virtual int pop_item(Item *&para_item);
virtual void update_stat();
virtual int get_item_val(const char *field_name, Item *item_val, Field *field,
bson::BSONObj &obj,
bson::BSONArrayBuilder *arr_builder = NULL);
virtual int to_bson(bson::BSONObj &obj) = 0;
virtual const char *name() = 0;
virtual Item_func::Functype type() = 0;
uint get_para_num() { return para_num_max; }
protected:
List<Item> para_list;
uint para_num_cur;
uint para_num_max;
Sdb_item *l_child;
Sdb_item *r_child;
private:
inline my_bool can_ignore_warning(enum Item::Type type) {
return (Item::SUBSELECT_ITEM != type);
}
};
class Sdb_func_unkown : public Sdb_func_item {
public:
Sdb_func_unkown(Item_func *item);
~Sdb_func_unkown();
virtual int to_bson(bson::BSONObj &obj) { return SDB_ERR_COND_UNKOWN_ITEM; }
virtual const char *name() { return "unkown"; }
virtual Item_func::Functype type() { return Item_func::UNKNOWN_FUNC; }
Item *get_func_item() { return func_item; }
private:
Item_func *func_item;
};
class Sdb_func_unary_op : public Sdb_func_item {
public:
Sdb_func_unary_op();
~Sdb_func_unary_op();
virtual int to_bson(bson::BSONObj &obj) = 0;
virtual const char *name() = 0;
virtual Item_func::Functype type() = 0;
};
class Sdb_func_isnull : public Sdb_func_unary_op {
public:
Sdb_func_isnull();
~Sdb_func_isnull();
virtual int to_bson(bson::BSONObj &obj);
virtual const char *name() { return "$isnull"; }
virtual Item_func::Functype type() { return Item_func::ISNULL_FUNC; }
};
class Sdb_func_isnotnull : public Sdb_func_unary_op {
public:
Sdb_func_isnotnull();
~Sdb_func_isnotnull();
virtual int to_bson(bson::BSONObj &obj);
virtual const char *name() { return "$isnull"; }
virtual Item_func::Functype type() { return Item_func::ISNOTNULL_FUNC; }
};
class Sdb_func_bin_op : public Sdb_func_item {
public:
Sdb_func_bin_op();
~Sdb_func_bin_op();
virtual int to_bson(bson::BSONObj &obj) = 0;
virtual const char *name() = 0;
virtual Item_func::Functype type() = 0;
};
class Sdb_func_cmp : public Sdb_func_bin_op {
public:
Sdb_func_cmp();
~Sdb_func_cmp();
virtual int to_bson(bson::BSONObj &obj);
int to_bson_with_child(bson::BSONObj &obj);
virtual const char *name() = 0;
virtual const char *inverse_name() = 0;
virtual Item_func::Functype type() = 0;
};
class Sdb_func_eq : public Sdb_func_cmp {
public:
Sdb_func_eq(Item_func *item) : func_item(item){};
~Sdb_func_eq(){};
virtual const char *name() { return "$et"; }
virtual const char *inverse_name() { return "$et"; }
virtual Item_func::Functype type() { return func_item->functype(); }
private:
Item_func *func_item;
};
class Sdb_func_ne : public Sdb_func_cmp {
public:
Sdb_func_ne(){};
~Sdb_func_ne(){};
virtual const char *name() { return "$ne"; }
virtual const char *inverse_name() { return "$ne"; }
virtual Item_func::Functype type() { return Item_func::NE_FUNC; }
};
class Sdb_func_lt : public Sdb_func_cmp {
public:
Sdb_func_lt(){};
~Sdb_func_lt(){};
virtual const char *name() { return "$lt"; }
virtual const char *inverse_name() { return "$gt"; }
virtual Item_func::Functype type() { return Item_func::LT_FUNC; }
};
class Sdb_func_le : public Sdb_func_cmp {
public:
Sdb_func_le(){};
~Sdb_func_le(){};
virtual const char *name() { return "$lte"; }
virtual const char *inverse_name() { return "$gte"; }
virtual Item_func::Functype type() { return Item_func::LE_FUNC; }
};
class Sdb_func_gt : public Sdb_func_cmp {
public:
Sdb_func_gt(){};
~Sdb_func_gt(){};
virtual const char *name() { return "$gt"; }
virtual const char *inverse_name() { return "$lt"; }
virtual Item_func::Functype type() { return Item_func::GT_FUNC; }
};
class Sdb_func_ge : public Sdb_func_cmp {
public:
Sdb_func_ge(){};
~Sdb_func_ge(){};
virtual const char *name() { return "$gte"; }
virtual const char *inverse_name() { return "$lte"; }
virtual Item_func::Functype type() { return Item_func::GE_FUNC; }
};
class Sdb_func_neg : public Sdb_func_item {
public:
Sdb_func_neg(bool has_not) : negated(has_not) {}
virtual ~Sdb_func_neg() {}
virtual int to_bson(bson::BSONObj &obj) = 0;
virtual const char *name() { return "-"; }
virtual Item_func::Functype type() { return Item_func::NEG_FUNC; }
protected:
bool negated;
};
class Sdb_func_between : public Sdb_func_neg {
public:
Sdb_func_between(bool has_not);
virtual ~Sdb_func_between();
virtual int to_bson(bson::BSONObj &obj);
virtual const char *name() { return "between"; }
virtual Item_func::Functype type() { return Item_func::BETWEEN; }
};
class Sdb_func_in : public Sdb_func_neg {
public:
Sdb_func_in(bool has_not, uint args_num);
virtual ~Sdb_func_in();
virtual int to_bson(bson::BSONObj &obj);
virtual const char *name() { return "in"; }
virtual Item_func::Functype type() { return Item_func::IN_FUNC; }
};
class Sdb_func_like : public Sdb_func_bin_op {
public:
Sdb_func_like(Item_func_like *item);
virtual ~Sdb_func_like();
virtual int to_bson(bson::BSONObj &obj);
virtual int push_sdb_item(Sdb_item *cond_item) {
return SDB_ERR_COND_UNEXPECTED_ITEM;
}
virtual const char *name() { return "like"; }
virtual Item_func::Functype type() { return Item_func::LIKE_FUNC; }
private:
int get_regex_str(const char *like_str, size_t len, std::string &regex_str);
private:
Item_func_like *like_item;
};
#endif

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