Lumiera 0.pre.04~rc.1
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session-service-fetch.hpp
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1/*
2 SESSION-SERVICE-FETCH.hpp - session implementation service API: fetch PlacementRef
3
4 Copyright (C)
5 2008, Hermann Vosseler <Ichthyostega@web.de>
6
7  **Lumiera** is free software; you can redistribute it and/or modify it
8  under the terms of the GNU General Public License as published by the
9  Free Software Foundation; either version 2 of the License, or (at your
10  option) any later version. See the file COPYING for further details.
11
12*/
13
14
28#ifndef MOBJECT_SESSION_SESSION_SERVICE_FETCH_H
29#define MOBJECT_SESSION_SESSION_SERVICE_FETCH_H
30
31//#include "steam/mobject/session.hpp"
32//#include "lib/meta/generator.hpp"
34
35
36
37
38namespace steam {
39namespace mobject {
40namespace session {
41
42// using lib::meta::InstantiateChained;
43// using lib::meta::InheritFrom;
44// using lib::meta::Nil;
45
54 {
55 public:
56 static PlacementMO& resolveID (PlacementMO::ID const&) ;
57 static bool isRegisteredID (PlacementMO::ID const&) ;
58
59 static bool isAccessible() ;
60 };
61
62
63
64}}} // namespace steam::mobject::session
65#endif
Implementation-level service for resolving an Placement-ID.
static bool isRegisteredID(PlacementMO::ID const &)
verify the given placement-ID (hash) is valid, by checking if it refers to a Placement instance curre...
static PlacementMO & resolveID(PlacementMO::ID const &)
actually retrieve a Placement tracked by the index.
static bool isAccessible()
is the element-fetch service usable? Effectively this means: is the session up?
Namespace of Session and user visible high-level objects.
Definition sequence.hpp:65
Steam-Layer implementation namespace root.
Core abstraction: placement of a media object into session context.