[odb-announcements] ODB 2.1.0 released

Tue Sep 18 05:39:11 EDT 2012

Hi,

We have released ODB 2.1.0. The NEWS file entries for this release are
as follows:

 * The ODB compiler is now capable of automatically discovering accessor and
   modifier functions for inaccessible data members in persistent classes,
   composite value types, and views. It will then use these accessors and
   modifiers in the generated code instead of trying to access such data
   members directly. The names of these functions are derived from the
   data member names and, by default, the ODB compiler will look for names
   in the form: get_foo/set_foo, getFoo/setFoo, getfoo/setfoo, and just
   foo. You can also add custom name derivations with the --accessor-regex
   and --modifier-regex ODB compiler options. For more information, refer
   to Section 3.2, "Declaring Persistent Objects and Values" in the ODB
   manual.

 * New pragmas, get, set, and access, allow the specification of custom
   accessor and modifier expressions for data members in persistent classes,
   composite value types, and views. For more information, refer to Section
   12.4.5, "get/set/access" in the ODB manual as well as the 'access' example
   in the odb-examples package.

 * New pragma, virtual, allows the declaration of virtual data members. A
   virtual data member is an imaginary data member that is only used for
   the purpose of database persistence. This mechanism can be useful to
   aggregate or dis-aggregate real data members, implement the pimpl idiom,
   and to handle third-party types for which names of real data members may
   not be known. For more information, refer to Section 12.4.13, "virtual"
   in the ODB manual as well as the 'access' and 'pimpl' examples in the
   odb-examples package.

 * Support for defining database indexes. Both simple and composite indexes
   can be defined with support for database-specific index types, methods,
   and options. For more information, refer to Section 12.6, "Index
   Definition Pragmas" as well as Sections [13-17].16, "<Database> Index
   Definition" in the ODB manual.

 * Support for mapping extended database types, such as geospatial types,
   user-defined types, and collections. This mechanism allows you to map
   any database type to one of the types for which ODB provides built-in
   support (normally string or binary). The text or binary representation
   of the data can then be extracted into a C++ data type of your choice.
   For more information, refer to Section 12.7, "Database Type Mapping
   Pragmas" in the ODB manual.

 * The Boost profile now provides persistence support for the Boost Multi-
   Index container (boost::multi_index_container). For more information,
   refer to Section 19.3, "Multi-Index Container Library" in the ODB manual.

 * The Boost profile now provides persistence support for the Boost uuid type
   (boost::uuids::uuid). For more information, refer to Section 19.6, "Uuid
   Library" in the ODB manual as well as the 'boost' example in the odb-
   examples package.

 * The Qt profile now provides persistence support for the QUuid type. For
   more information, refer to Section 20.1, "Basic Types" in the ODB manual
   as well as the 'qt' example in the odb-examples package.

 * SQLite improvements: Persistence support for std::wstring on Windows
   (Section 14.1, "SQLite Type Mapping"). Ability to pass the database
   name as std::wstring on Windows (Section 14.2, "SQLite Database Class").
   Ability to specify the virtual filesystem (vfs) module in the database
   constructors (Section 14.2, "SQLite Database Class").

 * Support for mapping C++11 std::array<char, N> and std::array<unsigned
   char, N> types to BLOB/BINARY database types. For more information,
   refer to Sections [13-17].1, "<Database> Type Mapping" in the ODB manual.

 * Support for mapping the char[16] array to PostgreSQL UUID and SQL Server
   UNIQUEIDENTIFIER types. For more information, refer to Sections 15.1,
   "PostgreSQL Type Mapping" and 17.1, "SQL Server Type Mapping" in the
   ODB manual.

 * New option, --output-name, specifies the alternative base name used to
   construct the names of the generated files. Refer to the ODB compiler
   command line interface documentation (man pages) for details.

 * New option, --generate-schema-only, instructs the ODB compiler to
   generate the database schema only. Refer to the ODB compiler command
   line interface documentation (man pages) for details.

 * New option, --at-once, triggers the generation of code for all the input
   files as well as for all the files that they include at once. Refer to
   the ODB compiler command line interface documentation (man pages) for
   details.

 * New options, --sql-interlude and --sql-interlude-file, allow the insertion
   of custom SQL between the DROP and CREATE statements in the generated
   database schema file.

 * New options, --omit-drop and --omit-create, trigger the omission of DROP
   and CREATE statements, respectively, from the generated database schema.

 * New ODB manual Section, 6.3 "Circular Relationships", explains how to
   handle persistent classes with circular dependencies that are defined
   in separate headers.

 * The id() pragma that was used to declare a persistent class without an
   object id has been renamed to no_id.

 * New pragma, definition, allows the specification of an alternative code
   generation point for persistent classes, views, and composite value
   types. This mechanism is primarily useful for converting third-party
   types to ODB composite value types. For more information, refer to
   Section 12.3.7, "Definition" in the ODB manual.

 * The session constructor now accepts an optional bool argument (true by
   default) which indicates whether to make this session current for this
   thread. For more information, refer to Chapter 10, "Session" in the ODB
   manual.

 * Simplified Oracle automatically-assigned object id implementation that
   does not rely on triggers.

 * Support for mapping boost::posix_time::ptime and QDateTime to the DATE
   Oracle type. For more information, refer to Sections 19.4.4 (Boost) and
   20.4.4 (Qt) in the ODB manual.

 * Default SQLite mapping for float and double now allows NULL since SQLite
   treats NaN FLOAT values as NULL. For more information, refer to Section
   14.1, "SQLite Type Mapping" in the ODB manual.

We have also added Visual Studio 2012 and Clang 3.1 to the list of compilers
that we use for testing each release. Specifically, all the runtime libraries,
examples, and tests now come with project/solution files for Visual Studio
2012 in addition to 2010 and 2008. For the complete list of compilers that
were used to test this release, refer to the ODB Platforms and Compilers
page:

http://www.codesynthesis.com/products/odb/platforms.xhtml

A more detailed discussion of the major new features can be found in the
following blog post:

http://www.codesynthesis.com/~boris/blog/2012/09/18/odb-2-1-0-released/

We would also like to thank everyone who reported bugs, suggested fixes
or new features, as well as tested early versions of this release.

Source code and pre-compiled binary packages for this release are available
from the ODB Download page:

http://www.codesynthesis.com/products/odb/download.xhtml

SHA1 checksums for the files in this release are as follows:

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Enjoy,
	Boris