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// file : odb/schema-catalog.cxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#include <map>
#include <vector>
#include <odb/exceptions.hxx>
#include <odb/schema-catalog.hxx>
#include <odb/schema-catalog-impl.hxx>
using namespace std;
namespace odb
{
typedef bool (*create_function) (database&, unsigned short pass, bool drop);
typedef vector<create_function> create_functions;
struct schema_catalog_impl: map<string, create_functions> {};
schema_catalog_impl* schema_catalog_init::catalog = 0;
size_t schema_catalog_init::count = 0;
void schema_catalog::
create_schema (database& db, const string& name)
{
const schema_catalog_impl& c (*schema_catalog_init::catalog);
schema_catalog_impl::const_iterator i (c.find (name));
if (i == c.end ())
throw unknown_schema (name);
const create_functions& fs (i->second);
// Run the passes until we ran them all or all the functions
// return false, which means no more passes necessary. Do that
// first for drop passes, then for create.
//
for (unsigned short pass (1); pass < 3; ++pass)
{
bool done (true);
for (create_functions::const_iterator j (fs.begin ()), e (fs.end ());
j != e; ++j)
{
if ((*j) (db, pass, true))
done = false;
}
if (done)
break;
}
for (unsigned short pass (1); pass < 3; ++pass)
{
bool done (true);
for (create_functions::const_iterator j (fs.begin ()), e (fs.end ());
j != e; ++j)
{
if ((*j) (db, pass, false))
done = false;
}
if (done)
break;
}
}
// schema_catalog_init
//
schema_catalog_init::
schema_catalog_init ()
{
if (count == 0)
catalog = new schema_catalog_impl;
++count;
}
schema_catalog_init::
~schema_catalog_init ()
{
if (--count == 0)
delete catalog;
}
// schema_catalog_entry
//
schema_catalog_entry::
schema_catalog_entry (const char* name, create_function entry)
{
schema_catalog_impl& c (*schema_catalog_init::catalog);
c[name].push_back (entry);
}
}
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