diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2011-02-18 10:42:41 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2011-02-18 10:42:41 +0200 |
commit | a9a87afc39f815024b1908473a3ed33a82ddd25e (patch) | |
tree | f823496c9506356fbb8d0adfdc4c416f16d934ba /doc | |
parent | 391a4c294e9d9a378c636b7c25e6da027b60d45b (diff) |
Add odb::core namespace to be used in using-directives
Port all the examples and tests.
Diffstat (limited to 'doc')
-rw-r--r-- | doc/manual.xhtml | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/doc/manual.xhtml b/doc/manual.xhtml index 5b5e3d6..04a967f 100644 --- a/doc/manual.xhtml +++ b/doc/manual.xhtml @@ -1080,14 +1080,14 @@ mysql --user=odb_test --database=odb_test < person.sql #include "person-odb.hxx" using namespace std; -using namespace odb; +using namespace odb::core; int main (int argc, char* argv[]) { try { - auto_ptr<database> db (new mysql::database (argc, argv)); + auto_ptr<database> db (new odb::mysql::database (argc, argv)); unsigned long john_id, jane_id, joe_id; @@ -1128,6 +1128,19 @@ main (int argc, char* argv[]) we include <code>person.hxx</code> and <code>person-odb.hxx</code> which define our persistent <code>person</code> class.</p> + <p>Then we have two <code>using namespace</code> directives. The first + one brings in the names from the standard namespace and the second + brings in the ODB declarations which we will use later in the file. + Notice that in the second directive we use the <code>odb::core</code> + namespace instead of just <code>odb</code>. The former only brings + into the current namespace the essential ODB names, such as the + <code>database</code> and <code>transaction</code> classes, without + any of the auxiliary objects. This minimizes the likelihood of name + conflicts with other libraries. Note also that you should continue + using the <code>odb</code> namespace when qualifying individual names. + For example, you should write <code>odb::database</code>, not + <code>odb::core::database</code>.</p> + <p>Once we are in <code>main()</code>, the first thing we do is create the MySQL database object. Notice that this is the last line in <code>driver.cxx</code> that mentions MySQL explicitly; the rest @@ -4823,7 +4836,7 @@ CREATE TABLE `person_nickname` ( #include <odb/session.hxx> #include <odb/transaction.hxx> -using namespace odb; +using namespace odb::core; { session s; |