VSQLite++  0.3
command.hpp
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32 #ifndef GUARD_SQLITE_COMMAND_HPP_INCLUDED
33 #define GUARD_SQLITE_COMMAND_HPP_INCLUDED
34 
35 #include <boost/cstdint.hpp>
36 #include <boost/noncopyable.hpp>
37 #include <sqlite/connection.hpp>
38 #include <vector>
39 
40 struct sqlite3_stmt;
41 
42 namespace sqlite{
46  struct null_type{};
47 
51  extern null_type nil;
52 
53 
57  struct command : boost::noncopyable{
66  command(connection & con, std::string const & sql);
67 
70  virtual ~command();
71 
74  void clear();
75 
80  bool emit();
81 
85  bool operator()();
86 
90  void bind(int idx);
91 
96  void bind(int idx, int v);
97 
102  void bind(int idx, boost::int64_t v);
103 
108  void bind(int idx, double v);
109 
114  void bind(int idx, std::string const & v);
115 
121  void bind(int idx, void const * buf, size_t buf_size);
122 
128  void bind(int idx, std::vector<unsigned char> const & v);
129 
137  command & operator % (null_type const & p);
138 
144  command & operator % (int p);
145 
151  command & operator % (boost::int64_t p);
152 
158  command & operator % (double p);
159 
166  command & operator % (std::string const & p);
167 
174  command & operator % (std::vector<unsigned char> const & p);
175 
176  protected:
177  void access_check();
178  bool step();
179  struct sqlite3 * get_handle();
180  private:
181  void prepare();
182  void finalize();
183  private:
185  std::string m_sql;
186  protected:
187  sqlite3_stmt * stmt;
188  private:
190  };
191 }
192 
193 #endif //GUARD_SQLITE_COMMAND_HPP_INCLUDED
194 
connection is used to open, close, attach and detach a database. Further it has to be passed to all c...
Definition: connection.hpp:45
virtual ~command()
command destructor
null_type is an empty type used to represent NULL values
Definition: command.hpp:46
command is the base class of all sql command classes An object of this class is not copyable ...
Definition: command.hpp:57
sqlite3_stmt * stmt
Definition: command.hpp:187
bool emit()
emit executes the sql command If you have used placeholders you must have replaced all placeholders ...
std::string m_sql
Definition: command.hpp:185
bool operator()()
works exactly like the method command::emit
null_type nil
nil is used instead of NULL within the operator % syntax in this wrapper
void bind(int idx)
binds NULL to the given 1 based index
void clear()
clear is used if you&#39;d like to reuse a command object
command & operator%(null_type const &p)
replacement for void command::bind(int idx); To use this operator% you have to use the global object ...
connection & m_con
Definition: command.hpp:184
command(connection &con, std::string const &sql)
command constructor
struct sqlite3 * get_handle()