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Diffstat (limited to 'odb/relational/mssql/common.cxx')
| -rw-r--r-- | odb/relational/mssql/common.cxx | 558 |
1 files changed, 558 insertions, 0 deletions
diff --git a/odb/relational/mssql/common.cxx b/odb/relational/mssql/common.cxx new file mode 100644 index 0000000..f9c89e0 --- /dev/null +++ b/odb/relational/mssql/common.cxx @@ -0,0 +1,558 @@ +// file : odb/relational/mssql/common.cxx +// author : Constantin Michael <constantin@codesynthesis.com> +// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC +// license : GNU GPL v3; see accompanying LICENSE file + +#include <cassert> + +#include <odb/relational/mssql/common.hxx> + +using namespace std; + +namespace relational +{ + namespace mssql + { + // + // member_base + // + + void member_base:: + traverse (semantics::data_member& m) + { + if (transient (m)) + return; + + string var; + + if (!var_override_.empty ()) + var = var_override_; + else + { + string const& name (m.name ()); + var = name + (name[name.size () - 1] == '_' ? "" : "_"); + } + + bool cq (type_override_ != 0 ? false : const_type (m.type ())); + semantics::type& t (type_override_ != 0 ? *type_override_ : utype (m)); + + semantics::type* cont; + if (semantics::class_* c = composite_wrapper (t)) + { + // If t is a wrapper, pass the wrapped type. Also pass the + // original, wrapper type. + // + member_info mi (m, + *c, + (wrapper (t) ? &t : 0), + cq, + var, + fq_type_override_); + if (pre (mi)) + { + traverse_composite (mi); + post (mi); + } + } + // This cannot be a container if we have a type override. + // + else if (type_override_ == 0 && (cont = context::container (m))) + { + // The same unwrapping logic as for composite values. + // + member_info mi (m, + *cont, + (wrapper (t) ? &t : 0), + cq, + var, + fq_type_override_); + if (pre (mi)) + { + traverse_container (mi); + post (mi); + } + } + else + { + sql_type const& st (column_sql_type (m, key_prefix_)); + + if (semantics::class_* c = object_pointer (t)) + { + member_info mi (m, + utype (*id_member (*c)), + 0, + cq, + var, + fq_type_override_); + mi.st = &st; + if (pre (mi)) + { + traverse_object_pointer (mi); + post (mi); + } + } + else + { + member_info mi (m, t, 0, cq, var, fq_type_override_); + mi.st = &st; + if (pre (mi)) + { + traverse_simple (mi); + post (mi); + } + } + } + } + + void member_base:: + traverse_simple (member_info& mi) + { + const sql_type& st (*mi.st); + + switch (st.type) + { + // Integral types. + // + case sql_type::BIT: + case sql_type::TINYINT: + case sql_type::SMALLINT: + case sql_type::INT: + case sql_type::BIGINT: + { + traverse_integer (mi); + break; + } + + // Fixed and floating point types. + // + case sql_type::DECIMAL: + { + traverse_decimal (mi); + break; + } + case sql_type::SMALLMONEY: + { + traverse_smallmoney (mi); + break; + } + case sql_type::MONEY: + { + traverse_money (mi); + break; + } + case sql_type::FLOAT: + { + if (st.prec > 24) + traverse_float8 (mi); + else + traverse_float4 (mi); + + break; + } + + // String and binary types. + // + case sql_type::CHAR: + case sql_type::VARCHAR: + { + // Zero precision means max in VARCHAR(max). + // + if (st.prec == 0 || st.prec > options.mssql_short_limit ()) + traverse_long_string (mi); + else + traverse_string (mi); + + break; + } + case sql_type::TEXT: + { + traverse_long_string (mi); + break; + } + case sql_type::NCHAR: + case sql_type::NVARCHAR: + { + // Zero precision means max in NVARCHAR(max). Note that + // the precision is in 2-byte UCS-2 characters, not bytes. + // + if (st.prec == 0 || st.prec * 2 > options.mssql_short_limit ()) + traverse_long_nstring (mi); + else + traverse_nstring (mi); + + break; + } + case sql_type::NTEXT: + { + traverse_long_nstring (mi); + break; + } + case sql_type::BINARY: + case sql_type::VARBINARY: + { + // Zero precision means max in VARCHAR(max). + // + if (st.prec == 0 || st.prec > options.mssql_short_limit ()) + traverse_long_binary (mi); + else + traverse_binary (mi); + + break; + } + case sql_type::IMAGE: + { + traverse_long_binary (mi); + break; + } + + // Date-time types. + // + case sql_type::DATE: + { + traverse_date (mi); + break; + } + case sql_type::TIME: + { + traverse_time (mi); + break; + } + case sql_type::DATETIME: + case sql_type::DATETIME2: + case sql_type::SMALLDATETIME: + { + traverse_datetime (mi); + break; + } + case sql_type::DATETIMEOFFSET: + { + traverse_datetimeoffset (mi); + break; + } + + // Other types. + // + case sql_type::UNIQUEIDENTIFIER: + { + traverse_uniqueidentifier (mi); + break; + } + case sql_type::ROWVERSION: + { + traverse_rowversion (mi); + break; + } + case sql_type::invalid: + { + assert (false); + break; + } + } + } + + // + // member_image_type + // + + static const char* integer_types[] = + { + "unsigned char", + "unsigned char", + "short", + "int", + "long long" + }; + + member_image_type:: + member_image_type (semantics::type* type, + string const& fq_type, + string const& key_prefix) + : relational::member_base (type, fq_type, key_prefix) + { + } + + string member_image_type:: + image_type (semantics::data_member& m) + { + type_.clear (); + member_base::traverse (m); + return type_; + } + + void member_image_type:: + traverse_composite (member_info& mi) + { + type_ = "composite_value_traits< " + mi.fq_type () + " >::image_type"; + } + + void member_image_type:: + traverse_integer (member_info& mi) + { + type_ = integer_types[mi.st->type - sql_type::BIT]; + } + + void member_image_type:: + traverse_decimal (member_info&) + { + type_ = "mssql::decimal"; + } + + void member_image_type:: + traverse_smallmoney (member_info&) + { + type_ = "mssql::smallmoney"; + } + + void member_image_type:: + traverse_money (member_info&) + { + type_ = "mssql::money"; + } + + void member_image_type:: + traverse_float4 (member_info&) + { + type_ = "float"; + } + + void member_image_type:: + traverse_float8 (member_info&) + { + type_ = "double"; + } + + void member_image_type:: + traverse_string (member_info&) + { + type_ = "char*"; + } + + void member_image_type:: + traverse_long_string (member_info&) + { + type_ = "mssql::long_callback"; + } + + void member_image_type:: + traverse_nstring (member_info&) + { + type_ = "mssql::ucs2_char*"; + } + + void member_image_type:: + traverse_long_nstring (member_info&) + { + type_ = "mssql::long_callback"; + } + + void member_image_type:: + traverse_binary (member_info&) + { + type_ = "char*"; + } + + void member_image_type:: + traverse_long_binary (member_info&) + { + type_ = "mssql::long_callback"; + } + + void member_image_type:: + traverse_date (member_info&) + { + type_ = "mssql::date"; + } + + void member_image_type:: + traverse_time (member_info&) + { + type_ = "mssql::time"; + } + + void member_image_type:: + traverse_datetime (member_info&) + { + type_ = "mssql::datetime"; + } + + void member_image_type:: + traverse_datetimeoffset (member_info&) + { + type_ = "mssql::datetimeoffset"; + } + + void member_image_type:: + traverse_uniqueidentifier (member_info&) + { + type_ = "mssql::uniqueidentifier"; + } + + void member_image_type:: + traverse_rowversion (member_info&) + { + type_ = "unsigned char*"; + } + + // + // member_database_type + // + + static const char* integer_database_id[] = + { + "mssql::id_bit", + "mssql::id_tinyint", + "mssql::id_smallint", + "mssql::id_int", + "mssql::id_bigint" + }; + + member_database_type_id:: + member_database_type_id (semantics::type* type, + string const& fq_type, + string const& key_prefix) + : relational::member_base (type, fq_type, key_prefix) + { + } + + string member_database_type_id:: + database_type_id (type& m) + { + type_id_.clear (); + member_base::traverse (m); + return type_id_; + } + + void member_database_type_id:: + traverse_composite (member_info&) + { + assert (false); + } + + void member_database_type_id:: + traverse_integer (member_info& mi) + { + type_id_ = integer_database_id[mi.st->type - sql_type::BIT]; + } + + void member_database_type_id:: + traverse_decimal (member_info&) + { + type_id_ = "mssql::id_decimal"; + } + + void member_database_type_id:: + traverse_smallmoney (member_info&) + { + type_id_ = "mssql::id_smallmoney"; + } + + void member_database_type_id:: + traverse_money (member_info&) + { + type_id_ = "mssql::id_money"; + } + + void member_database_type_id:: + traverse_float4 (member_info&) + { + type_id_ = "mssql::id_float4"; + } + + void member_database_type_id:: + traverse_float8 (member_info&) + { + type_id_ = "mssql::id_float8"; + } + + void member_database_type_id:: + traverse_string (member_info&) + { + type_id_ = "mssql::id_string"; + } + + void member_database_type_id:: + traverse_long_string (member_info&) + { + type_id_ = "mssql::id_long_string"; + } + + void member_database_type_id:: + traverse_nstring (member_info&) + { + type_id_ = "mssql::id_nstring"; + } + + void member_database_type_id:: + traverse_long_nstring (member_info&) + { + type_id_ = "mssql::id_long_nstring"; + } + + void member_database_type_id:: + traverse_binary (member_info&) + { + type_id_ = "mssql::id_binary"; + } + + void member_database_type_id:: + traverse_long_binary (member_info&) + { + type_id_ = "mssql::id_long_binary"; + } + + void member_database_type_id:: + traverse_date (member_info&) + { + type_id_ = "mssql::id_date"; + } + + void member_database_type_id:: + traverse_time (member_info&) + { + type_id_ = "mssql::id_time"; + } + + void member_database_type_id:: + traverse_datetime (member_info&) + { + type_id_ = "mssql::id_datetime"; + } + + void member_database_type_id:: + traverse_datetimeoffset (member_info&) + { + type_id_ = "mssql::id_datetimeoffset"; + } + + void member_database_type_id:: + traverse_uniqueidentifier (member_info&) + { + type_id_ = "mssql::id_uniqueidentifier"; + } + + void member_database_type_id:: + traverse_rowversion (member_info&) + { + type_id_ = "mssql::id_rowversion"; + } + + // + // query_columns + // + + struct query_columns: relational::query_columns, context + { + query_columns (base const& x): base (x) {} + + virtual string + database_type_id (semantics::data_member& m) + { + return member_database_type_id_.database_type_id (m); + } + + private: + member_database_type_id member_database_type_id_; + }; + entry<query_columns> query_columns_; + } +} |