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// file : odb/semantics/relational/key.cxx
// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
// license : GNU GPL v3; see accompanying LICENSE file
#include <cutl/compiler/type-info.hxx>
#include <odb/semantics/relational/key.hxx>
#include <odb/semantics/relational/column.hxx>
namespace semantics
{
namespace relational
{
key::
key (key const& k, uscope& s, graph& g)
: unameable (k, g)
{
for (contains_iterator i (k.contains_begin ());
i != k.contains_end (); ++i)
{
column* c (s.lookup<column, drop_column> (i->column ().name ()));
assert (c != 0);
g.new_edge<contains> (*this, *c, i->options ());
}
}
key::
key (xml::parser& p, uscope& s, graph& g)
: unameable (p, g)
{
using namespace xml;
p.content (parser::complex);
for (parser::event_type e (p.peek ());
e == parser::start_element;
e = p.peek ())
{
if (p.qname () != xml::qname (xmlns, "column"))
break; // Not our elements.
p.next ();
p.content (parser::empty);
uname n (p.attribute<uname> ("name"));
column* c (s.lookup<column, drop_column> (n));
if (c == 0)
throw parsing (p, "invalid column name in the 'name' attribute");
string o (p.attribute ("options", string ()));
g.new_edge<contains> (*this, *c, o);
p.next_expect (parser::end_element);
}
}
void key::
serialize_content (xml::serializer& s) const
{
for (contains_iterator i (contains_begin ()); i != contains_end (); ++i)
{
s.start_element (xmlns, "column");
s.attribute ("name", i->column ().name ());
if (!i->options ().empty ())
s.attribute ("options", i->options ());
s.end_element ();
}
}
// type info
//
namespace
{
struct init
{
init ()
{
using compiler::type_info;
// contains
//
{
type_info ti (typeid (contains));
ti.add_base (typeid (edge));
insert (ti);
}
// key
//
{
type_info ti (typeid (key));
ti.add_base (typeid (node));
insert (ti);
}
}
} init_;
}
}
}
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