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// file : odb/relational/context.hxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license : GNU GPL v3; see accompanying LICENSE file
#ifndef ODB_RELATIONAL_CONTEXT_HXX
#define ODB_RELATIONAL_CONTEXT_HXX
#include <odb/context.hxx>
namespace relational
{
class context: public virtual ::context
{
public:
// Return true if an object or value type has members for which
// the image can grow.
//
bool
grow (semantics::class_&);
// The same for a member's value type.
//
bool
grow (semantics::data_member&);
bool
grow (semantics::data_member&, semantics::type&, string const& key_prefix);
public:
// Quote SQL identifier.
//
string
quote_id (string const&) const;
public:
context ();
static context&
current ()
{
return dynamic_cast<context&> (root_context::current ());
}
protected:
// The default implementation returns false.
//
virtual bool
grow_impl (semantics::class_&);
virtual bool
grow_impl (semantics::data_member&);
virtual bool
grow_impl (semantics::data_member&,
semantics::type&,
string const&);
// The default implementation uses the ISO quoting ("").
//
virtual string
quote_id_impl (string const&) const;
protected:
struct data;
typedef context base_context;
context (data*);
protected:
struct data: root_context::data
{
data (std::ostream& os): root_context::data (os) {}
};
data* data_;
};
}
#include <odb/relational/context.ixx>
#endif // ODB_RELATIONAL_CONTEXT_HXX
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