107 lines
2.9 KiB
C++
Executable File
107 lines
2.9 KiB
C++
Executable File
// file : odb/statement.hxx
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// copyright : Copyright (c) 2005-2015 Code Synthesis Tools CC
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// license : GNU GPL v2; see accompanying LICENSE file
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#ifndef ODB_STATEMENT_HXX
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#define ODB_STATEMENT_HXX
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#include <odb/pre.hxx>
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#include <string>
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#include <cstddef> // std::size_t
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#include <odb/forward.hxx> // connection
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#include <odb/details/export.hxx>
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#include <odb/details/shared-ptr.hxx>
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namespace odb
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{
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class LIBODB_EXPORT statement: public details::shared_base
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{
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private:
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statement (const statement&);
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statement& operator= (const statement&);
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public:
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typedef odb::connection connection_type;
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virtual const char*
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text () const = 0;
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virtual connection_type&
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connection () = 0;
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virtual
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~statement () = 0;
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protected:
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statement () {}
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// Statement processing. Kept public only for testing.
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//
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public:
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// Expected statement structure:
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//
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// INSERT INTO table\n
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// [(a,\n
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// b)\n]
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// [OUTPUT ...\n]
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// [VALUES\n
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// ($1,\n
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// $2)[\n]]
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// [DEFAULT VALUES[\n]]
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// [RETURNING ...]
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// [; SELECT ...]
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//
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static void
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process_insert (const char* statement,
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const void* const* bind, // Array of bind buffer pointers.
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std::size_t bind_size, // Number of bind elements.
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std::size_t bind_skip, // Offset to the next bind.
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char param_symbol, // $, ?, :, etc.
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std::string& result);
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// Expected statement structure:
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//
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// UPDATE table\n
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// SET\n
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// a=$1,\n
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// b=$2[\n]
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// [OUTPUT ...]
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// [WHERE ...]
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//
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static void
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process_update (const char* statement,
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const void* const* bind, // Array of bind buffer pointers.
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std::size_t bind_size, // Number of bind elements.
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std::size_t bind_skip, // Offset to the next bind.
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char param_symbol, // $, ?, :, etc.
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std::string& result);
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// Expected statement structure:
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//
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// SELECT\n
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// [schema.]table.a,\n
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// alias.b\n
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// FROM [schema.]table[\n]
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// [{A-Z }* JOIN [schema.]table [AS alias][ ON ...][\n]]*
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// [WHERE ...]
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//
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static void
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process_select (const char* statement,
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const void* const* bind, // Array of bind buffer pointers.
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std::size_t bind_size, // Number of bind elements.
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std::size_t bind_skip, // Offset to the next bind.
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char quote_open, // Identifier opening quote.
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char quote_close, // Identifier closing quote.
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bool optimize, // Remove unused JOINs.
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std::string& result,
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bool as = true); // JOINs use AS keyword.
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};
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}
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#include <odb/post.hxx>
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#endif // ODB_STATEMENT_HXX
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