Changeset 9667 for code/trunk/src/libraries/core/class

Timestamp:

Aug 25, 2013, 9:08:42 PM (11 years ago)

Author:

landauf

Message:

merged core6 back to trunk

Location:

code/trunk

Files:

• . (modified) (1 prop)
• src/libraries/core/class (copied) (copied from code/branches/core6/src/libraries/core/class)
• src/libraries/core/class/CMakeLists.txt (modified) (1 diff)
• src/libraries/core/class/Identifiable.cc (modified) (3 diffs)
• src/libraries/core/class/Identifiable.h (modified) (2 diffs)
• src/libraries/core/class/Identifier.cc (modified) (6 diffs)
• src/libraries/core/class/Identifier.h (modified) (16 diffs)
• src/libraries/core/class/IdentifierManager.cc (modified) (10 diffs)
• src/libraries/core/class/IdentifierManager.h (modified) (3 diffs)
• src/libraries/core/class/OrxonoxClass.cc (copied) (copied from code/branches/core6/src/libraries/core/class/OrxonoxClass.cc)
• src/libraries/core/class/OrxonoxClass.h (modified) (1 diff)
• src/libraries/core/class/OrxonoxInterface.cc (copied) (copied from code/branches/core6/src/libraries/core/class/OrxonoxInterface.cc)
• src/libraries/core/class/OrxonoxInterface.h (modified) (1 diff)
• src/libraries/core/class/SubclassIdentifier.h (modified) (1 diff)
• src/libraries/core/class/Super.h (modified) (2 diffs)

code/trunk/src/libraries/core/class/CMakeLists.txt

@@ -3 +3 @@
   Identifier.cc
   IdentifierManager.cc
+  OrxonoxClass.cc
+  OrxonoxInterface.cc
 )

code/trunk/src/libraries/core/class/Identifiable.cc

@@ -35 +35 @@
 
 #include <cassert>
+#include "core/CoreIncludes.h"
 #include "core/object/Context.h"
 #include "Identifier.h"
@@ -40 +41 @@
 namespace orxonox
 {
+    RegisterClassNoArgs(Identifiable);
+
     /**
         @brief Constructor: Sets the default values.
@@ -46 +49 @@
     {
         this->identifier_ = 0;
-        this->parents_ = 0;
-        // Optimisation
-        this->objectPointers_.reserve(6);
-    }
+        this->objectPointers_.reserve(6); // Optimisation
 
-    /**
-        @brief Destructor: Removes the object from the object-lists
-    */
-    Identifiable::~Identifiable()
-    {
-        // parents_ exists only if isCreatingHierarchy() of the associated Identifier returned true while creating the class
-        if (this->parents_)
-            delete this->parents_;
+        RegisterObject(Identifiable);
     }
 

code/trunk/src/libraries/core/class/Identifiable.h

@@ -55 +55 @@
         public:
             Identifiable();
-            virtual ~Identifiable();
+            virtual ~Identifiable() {}
 
             /// Returns the Identifier of the object.
@@ -119 +119 @@
         private:
             Identifier* identifier_;               //!< The Identifier of the object
-            std::set<const Identifier*>* parents_; //!< List of all parents of the object
 
             /// 'Fast map' that holds this-pointers of all derived types

code/trunk/src/libraries/core/class/Identifier.cc

@@ -37 +37 @@
 
 #include "util/StringUtils.h"
+#include "core/CoreIncludes.h"
 #include "core/config/ConfigValueContainer.h"
 #include "core/XMLPort.h"
@@ -50 +51 @@
     */
     Identifier::Identifier()
-        : classID_(IdentifierManager::classIDCounter_s++)
-    {
-        this->objects_ = new ObjectListBase();
-
-        this->bCreatedOneObject_ = false;
-        this->bSetName_ = false;
+        : classID_(IdentifierManager::getInstance().getUniqueClassId())
+    {
         this->factory_ = 0;
+        this->bInitialized_ = false;
         this->bLoadable_ = false;
 
@@ -70 +68 @@
     Identifier::~Identifier()
     {
-        delete this->objects_;
-
         if (this->factory_)
             delete this->factory_;
@@ -84 +80 @@
 
     /**
-        @brief Registers a class, which means that the name and the parents get stored.
-        @param parents A list, containing the Identifiers of all parents of the class
-        @param bRootClass True if the class is either an Interface or the BaseObject itself
-    */
-    void Identifier::initializeClassHierarchy(std::set<const Identifier*>* parents, bool bRootClass)
-    {
-        // Check if at least one object of the given type was created
-        if (!this->bCreatedOneObject_ && IdentifierManager::isCreatingHierarchy())
-        {
-            // If no: We have to store the information and initialize the Identifier
-            orxout(verbose, context::identifier) << "Register Class in ClassIdentifier<" << this->getName() << ">-Singleton -> Initialize Singleton." << endl;
-            if (bRootClass)
-                this->initialize(0); // If a class is derived from two interfaces, the second interface might think it's derived from the first because of the order of constructor-calls. Thats why we set parents to zero in that case.
-            else
-                this->initialize(parents);
-        }
-    }
-
-    /**
-        @brief Initializes the Identifier with a list containing all parents of the class the Identifier belongs to.
-        @param parents A list containing all parents
-    */
-    void Identifier::initialize(std::set<const Identifier*>* parents)
-    {
-        orxout(verbose, context::identifier) << "Initialize ClassIdentifier<" << this->name_ << ">-Singleton." << endl;
-        this->bCreatedOneObject_ = true;
-
-        if (parents)
-        {
-            this->parents_ = (*parents);
-            this->directParents_ = (*parents);
-
-            // Iterate through all parents
-            for (std::set<const Identifier*>::iterator it = parents->begin(); it != parents->end(); ++it)
-            {
-                // Tell the parent we're one of it's children
-                (*it)->children_.insert((*it)->children_.end(), this);
-
-                // Erase all parents of our parent from our direct-parent-list
-                for (std::set<const Identifier*>::const_iterator it1 = (*it)->getParents().begin(); it1 != (*it)->getParents().end(); ++it1)
-                {
-                    // Search for the parent's parent in our direct-parent-list
-                    for (std::set<const Identifier*>::iterator it2 = this->directParents_.begin(); it2 != this->directParents_.end(); ++it2)
-                    {
-                        if ((*it1) == (*it2))
-                        {
-                            // We've found a non-direct parent in our list: Erase it
-                            this->directParents_.erase(it2);
-                            break;
-                        }
-                    }
-                }
-            }
-
-            // Now iterate through all direct parents
-            for (std::set<const Identifier*>::iterator it = this->directParents_.begin(); it != this->directParents_.end(); ++it)
-            {
-                // Tell the parent we're one of it's direct children
-                (*it)->directChildren_.insert((*it)->directChildren_.end(), this);
-
-                // Create the super-function dependencies
-                (*it)->createSuperFunctionCaller();
-            }
-        }
-    }
-
-    /**
         @brief Sets the name of the class.
     */
     void Identifier::setName(const std::string& name)
     {
-        if (!this->bSetName_)
+        if (name != this->name_)
         {
             this->name_ = name;
-            this->bSetName_ = true;
-            IdentifierManager::getStringIdentifierMapIntern()[name] = this;
-            IdentifierManager::getLowercaseStringIdentifierMapIntern()[getLowercase(name)] = this;
-            IdentifierManager::getIDIdentifierMapIntern()[this->networkID_] = this;
-        }
-    }
+            IdentifierManager::getInstance().addIdentifierToLookupMaps(this);
+        }
+    }
+
+    void Identifier::setFactory(Factory* factory)
+    {
+        if (this->factory_)
+            delete this->factory_;
+
+        this->factory_ = factory;
+    }
+
 
     /**
@@ -169 +104 @@
         @return The new object
     */
-    OrxonoxClass* Identifier::fabricate(BaseObject* creator)
+    Identifiable* Identifier::fabricate(Context* context)
     {
         if (this->factory_)
         {
-            return this->factory_->fabricate(creator);
+            return this->factory_->fabricate(context);
         }
         else
@@ -190 +125 @@
     void Identifier::setNetworkID(uint32_t id)
     {
-//        Identifier::getIDIdentifierMapIntern().erase(this->networkID_);
-        IdentifierManager::getIDIdentifierMapIntern()[id] = this;
         this->networkID_ = id;
+        IdentifierManager::getInstance().addIdentifierToLookupMaps(this);
+    }
+
+    /**
+     * @brief Used to define the direct parents of an Identifier of an abstract class.
+     */
+    Identifier& Identifier::inheritsFrom(Identifier* directParent)
+    {
+        if (this->parents_.empty())
+            this->directParents_.insert(directParent);
+        else
+            orxout(internal_error) << "Trying to add " << directParent->getName() << " as a direct parent of " << this->getName() << " after the latter was already initialized" << endl;
+
+        return *this;
+    }
+
+    /**
+     * @brief Initializes the parents of this Identifier while creating the class hierarchy.
+     * @param identifiers All identifiers that were used to create an instance of this class (including this identifier itself)
+     */
+    void Identifier::initializeParents(const std::set<const Identifier*>& identifiers)
+    {
+        if (!IdentifierManager::getInstance().isCreatingHierarchy())
+        {
+            orxout(internal_warning) << "Identifier::initializeParents() created outside of class hierarchy creation" << endl;
+            return;
+        }
+
+        for (std::set<const Identifier*>::const_iterator it = identifiers.begin(); it != identifiers.end(); ++it)
+            if (*it != this)
+                this->parents_.insert(*it);
+    }
+
+    /**
+     * @brief Initializes the direct parents of this Identifier while creating the class hierarchy. This is only intended for abstract classes.
+     */
+    void Identifier::initializeDirectParentsOfAbstractClass()
+    {
+        if (!IdentifierManager::getInstance().isCreatingHierarchy())
+        {
+            orxout(internal_warning) << "Identifier::initializeDirectParentsOfAbstractClass() created outside of class hierarchy creation" << endl;
+            return;
+        }
+
+        // only Identifiable is allowed to have no parents (even tough it's currently not abstract)
+        if (this->directParents_.empty() && !this->isExactlyA(Class(Identifiable)))
+        {
+            orxout(internal_error) << "Identifier " << this->getName() << " / " << this->getTypeidName() << " is marked as abstract but has no direct parents defined" << endl;
+            orxout(internal_error) << "  If this class is not abstract, use RegisterClass(ThisClass);" << endl;
+            orxout(internal_error) << "  If this class is abstract, use RegisterAbstractClass(ThisClass).inheritsFrom(Class(BaseClass));" << endl;
+        }
+    }
+
+    /**
+     * @brief Finishes the initialization of this Identifier after creating the class hierarchy by wiring the (direct) parent/child references correctly.
+     */
+    void Identifier::finishInitialization()
+    {
+        if (!IdentifierManager::getInstance().isCreatingHierarchy())
+        {
+            orxout(internal_warning) << "Identifier::finishInitialization() created outside of class hierarchy creation" << endl;
+            return;
+        }
+
+        if (this->isInitialized())
+            return;
+
+        // if no direct parents were defined, initialize them with the set of all parents
+        if (this->directParents_.empty())
+            this->directParents_ = this->parents_;
+
+        // initialize all parents before continuing to initialize this identifier
+        for (std::set<const Identifier*>::const_iterator it = this->directParents_.begin(); it != this->directParents_.end(); ++it)
+        {
+            Identifier* directParent = const_cast<Identifier*>(*it);
+            directParent->finishInitialization(); // initialize parent
+            this->parents_.insert(directParent);  // direct parent is also a parent
+            this->parents_.insert(directParent->parents_.begin(), directParent->parents_.end()); // parents of direct parent are also parents
+        }
+
+        // parents of parents are no direct parents of this identifier
+        for (std::set<const Identifier*>::const_iterator it_parent = this->parents_.begin(); it_parent != this->parents_.end(); ++it_parent)
+            for (std::set<const Identifier*>::const_iterator it_parent_parent = const_cast<Identifier*>(*it_parent)->parents_.begin(); it_parent_parent != const_cast<Identifier*>(*it_parent)->parents_.end(); ++it_parent_parent)
+                this->directParents_.erase(*it_parent_parent);
+
+        // tell all parents that this identifier is a child
+        for (std::set<const Identifier*>::const_iterator it = this->parents_.begin(); it != this->parents_.end(); ++it)
+            const_cast<Identifier*>(*it)->children_.insert(this);
+
+        // tell all direct parents that this identifier is a direct child
+        for (std::set<const Identifier*>::const_iterator it = this->directParents_.begin(); it != this->directParents_.end(); ++it)
+        {
+            const_cast<Identifier*>(*it)->directChildren_.insert(this);
+
+            // Create the super-function dependencies
+            (*it)->createSuperFunctionCaller();
+        }
+
+        this->bInitialized_ = true;
     }
 

code/trunk/src/libraries/core/class/Identifier.h

@@ -56 +56 @@
     object->getIdentifier()->getName();                                         // returns "MyClass"
 
-    OrxonoxClass* other = object->getIdentifier()->fabricate(0);                // fabricates a new instance of MyClass
-
-
-    // iterate through all objects of type MyClass:
-    ObjectListBase* objects = object->getIdentifier()->getObjects();            // get a pointer to the object-list
-    int count;
-    for (Iterator<MyClass> it = objects.begin(); it != objects.end(); ++it)     // iterate through the objects
-        ++count;
-    orxout() << count << endl;                                                  // prints "2" because we created 2 instances of MyClass so far
+    Identifiable* other = object->getIdentifier()->fabricate(0);                // fabricates a new instance of MyClass
 
 
@@ -90 +82 @@
 
 #include "util/Output.h"
-#include "core/object/MetaObjectList.h"
 #include "core/object/ObjectList.h"
-#include "core/object/ObjectListBase.h"
+#include "core/object/Listable.h"
+#include "core/object/Context.h"
+#include "core/object/Destroyable.h"
+#include "core/object/WeakPtr.h"
 #include "IdentifierManager.h"
 #include "Super.h"
@@ -112 +106 @@
         @note You can't directly create an Identifier, it's just the base-class of ClassIdentifier<T>.
     */
-    class _CoreExport Identifier
-    {
-        friend class IdentifierManager;
-
+    class _CoreExport Identifier : public Destroyable
+    {
         public:
+            Identifier();
+            Identifier(const Identifier& identifier); // don't copy
+            virtual ~Identifier();
+
             /// Returns the name of the class the Identifier belongs to.
             inline const std::string& getName() const { return this->name_; }
             void setName(const std::string& name);
 
+            /// Returns the name of the class as it is returned by typeid(T).name()
+            virtual const std::string& getTypeidName() = 0;
+
             /// Returns the network ID to identify a class through the network.
             inline uint32_t getNetworkID() const { return this->networkID_; }
@@ -128 +127 @@
             ORX_FORCEINLINE unsigned int getClassID() const { return this->classID_; }
 
-            /// Returns the list of all existing objects of this class.
-            inline ObjectListBase* getObjects() const { return this->objects_; }
-
             /// Sets the Factory.
-            inline void addFactory(Factory* factory) { this->factory_ = factory; }
+            void setFactory(Factory* factory);
             /// Returns true if the Identifier has a Factory.
             inline bool hasFactory() const { return (this->factory_ != 0); }
 
-            OrxonoxClass* fabricate(BaseObject* creator);
+            Identifiable* fabricate(Context* context);
 
             /// Returns true if the class can be loaded through XML.
@@ -142 +138 @@
             /// Set the class to be loadable through XML or not.
             inline void setLoadable(bool bLoadable) { this->bLoadable_ = bLoadable; }
+
+            /// Returns true if the Identifier was completely initialized.
+            inline bool isInitialized() const { return this->bInitialized_; }
+
+
+            /////////////////////////////
+            ////// Class Hierarchy //////
+            /////////////////////////////
+            Identifier& inheritsFrom(Identifier* directParent);
+
+            void initializeParents(const std::set<const Identifier*>& identifiers);
+            void initializeDirectParentsOfAbstractClass();
+            void finishInitialization();
 
             bool isA(const Identifier* identifier) const;
@@ -150 +159 @@
             bool isDirectParentOf(const Identifier* identifier) const;
 
-
-            /////////////////////////////
-            ////// Class Hierarchy //////
-            /////////////////////////////
             /// Returns the parents of the class the Identifier belongs to.
             inline const std::set<const Identifier*>& getParents() const { return this->parents_; }
@@ -220 +225 @@
 
         protected:
-            Identifier();
-            Identifier(const Identifier& identifier); // don't copy
-            virtual ~Identifier();
-
             virtual void createSuperFunctionCaller() const = 0;
 
-            void initializeClassHierarchy(std::set<const Identifier*>* parents, bool bRootClass);
-
-            /// Returns the children of the class the Identifier belongs to.
-            inline std::set<const Identifier*>& getChildrenIntern() const { return this->children_; }
-            /// Returns the direct children of the class the Identifier belongs to.
-            inline std::set<const Identifier*>& getDirectChildrenIntern() const { return this->directChildren_; }
-
-            ObjectListBase* objects_;                                      //!< The list of all objects of this class
-
         private:
-            void initialize(std::set<const Identifier*>* parents);
-
             std::set<const Identifier*> parents_;                          //!< The parents of the class the Identifier belongs to
-            mutable std::set<const Identifier*> children_;                 //!< The children of the class the Identifier belongs to
+            std::set<const Identifier*> children_;                         //!< The children of the class the Identifier belongs to
 
             std::set<const Identifier*> directParents_;                    //!< The direct parents of the class the Identifier belongs to
-            mutable std::set<const Identifier*> directChildren_;           //!< The direct children of the class the Identifier belongs to
-
-            bool bCreatedOneObject_;                                       //!< True if at least one object of the given type was created (used to determine the need of storing the parents)
-            bool bSetName_;                                                //!< True if the name is set
+            std::set<const Identifier*> directChildren_;                   //!< The direct children of the class the Identifier belongs to
+
+            bool bInitialized_;                                            //!< Is true if the Identifier was completely initialized
             bool bLoadable_;                                               //!< False = it's not permitted to load the object through XML
             std::string name_;                                             //!< The name of the class the Identifier belongs to
@@ -287 +276 @@
             static ClassIdentifier<T>* getIdentifier(const std::string& name);
 
-            bool initialiseObject(T* object, const std::string& className, bool bRootClass);
+            bool initializeObject(T* object);
 
             void setConfigValues(T* object, Configurable*) const;
@@ -295 +284 @@
             void addObjectToList(T* object, Identifiable*);
 
-            void updateConfigValues(bool updateChildren = true) const;
+            virtual void updateConfigValues(bool updateChildren = true) const;
+
+            virtual const std::string& getTypeidName()
+                { return this->typeidName_; }
 
         private:
-            static void initialiseIdentifier();
+            static void initializeIdentifier();
+
             ClassIdentifier(const ClassIdentifier<T>& identifier) {}    // don't copy
             ClassIdentifier()
             {
+                this->typeidName_ = typeid(T).name();
                 SuperFunctionInitialization<0, T>::initialize(this);
             }
@@ -309 +303 @@
             }
 
-            static ClassIdentifier<T>* classIdentifier_s;
+            void updateConfigValues(bool updateChildren, Listable*) const;
+            void updateConfigValues(bool updateChildren, Identifiable*) const;
+
+            std::string typeidName_;
+            static WeakPtr<ClassIdentifier<T> > classIdentifier_s;
     };
 
     template <class T>
-    ClassIdentifier<T>* ClassIdentifier<T>::classIdentifier_s = 0;
+    WeakPtr<ClassIdentifier<T> > ClassIdentifier<T>::classIdentifier_s;
 
     /**
@@ -324 +322 @@
         // check if the Identifier already exists
         if (!ClassIdentifier<T>::classIdentifier_s)
-            ClassIdentifier<T>::initialiseIdentifier();
+            ClassIdentifier<T>::initializeIdentifier();
 
         return ClassIdentifier<T>::classIdentifier_s;
@@ -346 +344 @@
     */
     template <class T>
-    void ClassIdentifier<T>::initialiseIdentifier()
-    {
-        // Get the name of the class
-        std::string name = typeid(T).name();
-
-        // create a new identifier anyway. Will be deleted in Identifier::getIdentifier if not used.
+    /*static */ void ClassIdentifier<T>::initializeIdentifier()
+    {
+        // create a new identifier anyway. Will be deleted if not used.
         ClassIdentifier<T>* proposal = new ClassIdentifier<T>();
 
         // Get the entry from the map
-        ClassIdentifier<T>::classIdentifier_s = (ClassIdentifier<T>*)IdentifierManager::getIdentifierSingleton(name, proposal);
+        ClassIdentifier<T>::classIdentifier_s = (ClassIdentifier<T>*)IdentifierManager::getInstance().getGloballyUniqueIdentifier(proposal);
 
         if (ClassIdentifier<T>::classIdentifier_s == proposal)
-        {
-            orxout(verbose, context::identifier) << "Requested Identifier for " << name << " was not yet existing and got created." << endl;
-        }
+            orxout(verbose, context::identifier) << "Requested Identifier for " << proposal->getTypeidName() << " was not yet existing and got created." << endl;
         else
         {
-            orxout(verbose, context::identifier) << "Requested Identifier for " << name << " was already existing and got assigned." << endl;
+            orxout(verbose, context::identifier) << "Requested Identifier for " << proposal->getTypeidName() << " was already existing and got assigned." << endl;
+            delete proposal; // delete proposal (it is not used anymore)
         }
     }
@@ -370 +364 @@
         @brief Adds an object of the given type to the ObjectList.
         @param object The object to add
-        @param className The name of the class T
-        @param bRootClass True if this is a root class (i.e. it inherits directly from OrxonoxClass)
-    */
-    template <class T>
-    bool ClassIdentifier<T>::initialiseObject(T* object, const std::string& className, bool bRootClass)
-    {
-        if (bRootClass)
-            orxout(verbose, context::object_list) << "Register Root-Object: " << className << endl;
-        else
-            orxout(verbose, context::object_list) << "Register Object: " << className << endl;
+    */
+    template <class T>
+    bool ClassIdentifier<T>::initializeObject(T* object)
+    {
+        orxout(verbose, context::object_list) << "Register Object: " << this->getName() << endl;
 
         object->identifier_ = this;
-        if (IdentifierManager::isCreatingHierarchy())
+        if (IdentifierManager::getInstance().isCreatingHierarchy())
         {
-            if (bRootClass && !object->parents_)
-                object->parents_ = new std::set<const Identifier*>();
-
-            if (object->parents_)
-            {
-                this->initializeClassHierarchy(object->parents_, bRootClass);
-                object->parents_->insert(object->parents_->end(), this);
-            }
+            IdentifierManager::getInstance().createdObject(object);
 
             this->setConfigValues(object, object);
@@ -425 +407 @@
      */
     template <class T>
-    void ClassIdentifier<T>::addObjectToList(T* object, Listable*)
-    {
-        orxout(verbose, context::object_list) << "Added object to " << this->getName() << "-list." << endl;
-        object->metaList_->add(this->objects_, this->objects_->add(object));
+    void ClassIdentifier<T>::addObjectToList(T* object, Listable* listable)
+    {
+        if (listable->getContext())
+            listable->getContext()->addObject(object);
     }
 
@@ -442 +424 @@
     template <class T>
     void ClassIdentifier<T>::updateConfigValues(bool updateChildren) const
+    {
+        this->updateConfigValues(updateChildren, static_cast<T*>(NULL));
+    }
+
+    template <class T>
+    void ClassIdentifier<T>::updateConfigValues(bool updateChildren, Listable*) const
     {
         if (!this->hasConfigValues())
@@ -452 +440 @@
             for (std::set<const Identifier*>::const_iterator it = this->getChildrenBegin(); it != this->getChildrenEnd(); ++it)
                 (*it)->updateConfigValues(false);
+    }
+
+    template <class T>
+    void ClassIdentifier<T>::updateConfigValues(bool updateChildren, Identifiable*) const
+    {
+        // no action
     }
 

code/trunk/src/libraries/core/class/IdentifierManager.cc

@@ -37 +37 @@
 
 #include "util/StringUtils.h"
+#include "core/CoreIncludes.h"
 #include "core/config/ConfigValueContainer.h"
 #include "core/XMLPort.h"
@@ -43 +44 @@
 namespace orxonox
 {
-    int IdentifierManager::hierarchyCreatingCounter_s = 0;
-    unsigned int IdentifierManager::classIDCounter_s = 0;
-
-    /**
-        @brief Returns the identifier map with the names as received by typeid(). This is only used internally.
-    */
-    std::map<std::string, Identifier*>& IdentifierManager::getTypeIDIdentifierMap()
-    {
-        static std::map<std::string, Identifier*> identifiers;    //!< The map to store all Identifiers.
-        return identifiers;
+    /* static */ IdentifierManager& IdentifierManager::getInstance()
+    {
+        static IdentifierManager instance;
+        return instance;
+    }
+
+    IdentifierManager::IdentifierManager()
+    {
+        this->hierarchyCreatingCounter_s = 0;
+        this->classIDCounter_s = 0;
     }
 
     /**
         @brief Returns an identifier by name and adds it if not available
-        @param name The name of the identifier as typeid().name() suggests
         @param proposal A pointer to a newly created identifier for the case of non existence in the map
         @return The identifier (unique instance)
     */
-    Identifier* IdentifierManager::getIdentifierSingleton(const std::string& name, Identifier* proposal)
-    {
-        std::map<std::string, Identifier*>::const_iterator it = getTypeIDIdentifierMap().find(name);
-
-        if (it != getTypeIDIdentifierMap().end())
-        {
-            // There is already an entry: return it and delete the proposal
-            delete proposal;
+    Identifier* IdentifierManager::getGloballyUniqueIdentifier(Identifier* proposal)
+    {
+        const std::string& typeidName = proposal->getTypeidName();
+        std::map<std::string, Identifier*>::const_iterator it = this->identifierByTypeidName_.find(typeidName);
+
+        if (it != this->identifierByTypeidName_.end())
+        {
+            // There is already an entry: return it
             return it->second;
         }
@@ -74 +74 @@
         {
             // There is no entry: put the proposal into the map and return it
-            getTypeIDIdentifierMap()[name] = proposal;
+            this->identifierByTypeidName_[typeidName] = proposal;
             return proposal;
         }
@@ -80 +80 @@
 
     /**
+     * Registers the identifier in all maps of the IdentifierManager.
+     */
+    void IdentifierManager::addIdentifierToLookupMaps(Identifier* identifier)
+    {
+        const std::string& typeidName = identifier->getTypeidName();
+        if (this->identifierByTypeidName_.find(typeidName) != this->identifierByTypeidName_.end())
+        {
+            this->identifierByString_[identifier->getName()] = identifier;
+            this->identifierByLowercaseString_[getLowercase(identifier->getName())] = identifier;
+            this->identifierByNetworkId_[identifier->getNetworkID()] = identifier;
+        }
+        else
+            orxout(internal_warning) << "Trying to add an identifier to lookup maps which is not known to IdentifierManager" << endl;
+    }
+
+    /**
         @brief Creates the class-hierarchy by creating and destroying one object of each type.
     */
@@ -85 +101 @@
     {
         orxout(internal_status) << "Create class-hierarchy" << endl;
-        IdentifierManager::startCreatingHierarchy();
-        for (std::map<std::string, Identifier*>::const_iterator it = IdentifierManager::getStringIdentifierMap().begin(); it != IdentifierManager::getStringIdentifierMap().end(); ++it)
-        {
-            // To create the new branch of the class-hierarchy, we create a new object and delete it afterwards.
-            if (it->second->hasFactory())
+        this->startCreatingHierarchy();
+
+        std::set<Identifier*> initializedIdentifiers;
+
+        // ensure root context exists before starting to create objects. if the root context is dynamically created while creating the class hierarchy, we
+        // would mistakenly assume the class of the currently created object inherits from Context
+        Context::getRootContext();
+
+        // iterate over all identifiers, create one instance of each class and initialize the identifiers
+        {
+            Context temporaryContext(NULL);
+            for (std::map<std::string, Identifier*>::const_iterator it = this->identifierByTypeidName_.begin(); it != this->identifierByTypeidName_.end(); ++it)
             {
-                OrxonoxClass* temp = it->second->fabricate(0);
-                temp->destroy();
+                orxout(verbose, context::identifier) << "Initialize ClassIdentifier<" << it->second->getName() << ">-Singleton." << endl;
+                // To initialize the identifier, we create a new object and delete it afterwards.
+                if (it->second->hasFactory())
+                {
+                    this->identifiersOfNewObject_.clear();
+                    Identifiable* temp = it->second->fabricate(&temporaryContext);
+                    if (temp->getIdentifier() != it->second)
+                        orxout(internal_error) << "Newly created object of type " << it->second->getName() << " has unexpected identifier. Did you forget to use RegisterObject(classname)?" << endl;
+                    delete temp;
+
+                    it->second->initializeParents(this->identifiersOfNewObject_);
+                }
+                else
+                    it->second->initializeDirectParentsOfAbstractClass();
+
+                initializedIdentifiers.insert(it->second);
             }
-        }
-        IdentifierManager::stopCreatingHierarchy();
+
+            size_t numberOfObjects = temporaryContext.getObjectList<Listable>()->size();
+            if (numberOfObjects > 0)
+                orxout(internal_warning) << "There are still " << numberOfObjects << " listables left after creating the class hierarchy" << endl;
+        }
+
+        // finish the initialization of all identifiers
+        for (std::map<std::string, Identifier*>::const_iterator it = this->identifierByTypeidName_.begin(); it != this->identifierByTypeidName_.end(); ++it)
+        {
+            if (initializedIdentifiers.find(it->second) != initializedIdentifiers.end())
+                it->second->finishInitialization();
+            else
+                orxout(internal_error) << "Identifier was registered late and is not initialized: " << it->second->getName() << " / " << it->second->getTypeidName() << endl;
+        }
+
+        this->stopCreatingHierarchy();
         orxout(internal_status) << "Finished class-hierarchy creation" << endl;
     }
@@ -104 +155 @@
     void IdentifierManager::destroyAllIdentifiers()
     {
-        for (std::map<std::string, Identifier*>::iterator it = IdentifierManager::getTypeIDIdentifierMap().begin(); it != IdentifierManager::getTypeIDIdentifierMap().end(); ++it)
+        for (std::map<std::string, Identifier*>::iterator it = this->identifierByTypeidName_.begin(); it != this->identifierByTypeidName_.end(); ++it)
             delete (it->second);
-    }
-
-    /**
-        @brief Returns the map that stores all Identifiers with their names.
-        @return The map
-    */
-    std::map<std::string, Identifier*>& IdentifierManager::getStringIdentifierMapIntern()
-    {
-        static std::map<std::string, Identifier*> identifierMap;
-        return identifierMap;
-    }
-
-    /**
-        @brief Returns the map that stores all Identifiers with their names in lowercase.
-        @return The map
-    */
-    std::map<std::string, Identifier*>& IdentifierManager::getLowercaseStringIdentifierMapIntern()
-    {
-        static std::map<std::string, Identifier*> lowercaseIdentifierMap;
-        return lowercaseIdentifierMap;
-    }
-
-    /**
-        @brief Returns the map that stores all Identifiers with their network IDs.
-        @return The map
-    */
-    std::map<uint32_t, Identifier*>& IdentifierManager::getIDIdentifierMapIntern()
-    {
-        static std::map<uint32_t, Identifier*> identifierMap;
-        return identifierMap;
+
+        this->identifierByTypeidName_.clear();
+        this->identifierByString_.clear();
+        this->identifierByLowercaseString_.clear();
+        this->identifierByNetworkId_.clear();
+    }
+
+    /**
+     * @brief Notifies the IdentifierManager about a newly created object while creating the class hierarchy.
+     */
+    void IdentifierManager::createdObject(Identifiable* identifiable)
+    {
+        if (this->isCreatingHierarchy())
+            this->identifiersOfNewObject_.insert(identifiable->getIdentifier());
+        else
+            orxout(internal_warning) << "createdObject() called outside of class hierarchy creation" << endl;
     }
 
@@ -145 +182 @@
     Identifier* IdentifierManager::getIdentifierByString(const std::string& name)
     {
-        std::map<std::string, Identifier*>::const_iterator it = IdentifierManager::getStringIdentifierMapIntern().find(name);
-        if (it != IdentifierManager::getStringIdentifierMapIntern().end())
+        std::map<std::string, Identifier*>::const_iterator it = this->identifierByString_.find(name);
+        if (it != this->identifierByString_.end())
             return it->second;
         else
@@ -159 +196 @@
     Identifier* IdentifierManager::getIdentifierByLowercaseString(const std::string& name)
     {
-        std::map<std::string, Identifier*>::const_iterator it = IdentifierManager::getLowercaseStringIdentifierMapIntern().find(name);
-        if (it != IdentifierManager::getLowercaseStringIdentifierMapIntern().end())
+        std::map<std::string, Identifier*>::const_iterator it = this->identifierByLowercaseString_.find(name);
+        if (it != this->identifierByLowercaseString_.end())
             return it->second;
         else
@@ -173 +210 @@
     Identifier* IdentifierManager::getIdentifierByID(const uint32_t id)
     {
-        std::map<uint32_t, Identifier*>::const_iterator it = IdentifierManager::getIDIdentifierMapIntern().find(id);
-        if (it != IdentifierManager::getIDIdentifierMapIntern().end())
+        std::map<uint32_t, Identifier*>::const_iterator it = this->identifierByNetworkId_.find(id);
+        if (it != this->identifierByNetworkId_.end())
             return it->second;
         else
@@ -185 +222 @@
     void IdentifierManager::clearNetworkIDs()
     {
-        IdentifierManager::getIDIdentifierMapIntern().clear();
+        this->identifierByNetworkId_.clear();
     }
 }

code/trunk/src/libraries/core/class/IdentifierManager.h

@@ -38 +38 @@
 
 #include <map>
+#include <set>
 #include <string>
 
@@ -44 +45 @@
     class _CoreExport IdentifierManager
     {
-        friend class Identifier;
-        template <class T> friend class ClassIdentifier;
+        public:
+            static IdentifierManager& getInstance();
 
-        public:
+            Identifier* getGloballyUniqueIdentifier(Identifier* proposal);
+            void addIdentifierToLookupMaps(Identifier* identifier);
+
+            unsigned int getUniqueClassId()
+                { return this->classIDCounter_s++; }
+
+
             /////////////////////////////
             ////// Class Hierarchy //////
             /////////////////////////////
-            static void createClassHierarchy();
+            void createClassHierarchy();
+            void destroyAllIdentifiers();
+
+            void createdObject(Identifiable* identifiable);
 
             /// Returns true, if a branch of the class-hierarchy is being created, causing all new objects to store their parents.
-            inline static bool isCreatingHierarchy()
+            inline bool isCreatingHierarchy()
                 { return (hierarchyCreatingCounter_s > 0); }
 
@@ -61 +71 @@
             ///// Identifier Map /////
             //////////////////////////
-            static void destroyAllIdentifiers();
+            Identifier* getIdentifierByString(const std::string& name);
+            Identifier* getIdentifierByLowercaseString(const std::string& name);
+            Identifier* getIdentifierByID(uint32_t id);
 
-            static Identifier* getIdentifierByString(const std::string& name);
-            static Identifier* getIdentifierByLowercaseString(const std::string& name);
-            static Identifier* getIdentifierByID(uint32_t id);
-
-            static void clearNetworkIDs();
+            void clearNetworkIDs();
 
             /// Returns the map that stores all Identifiers with their names.
-            static inline const std::map<std::string, Identifier*>& getStringIdentifierMap()
-                { return IdentifierManager::getStringIdentifierMapIntern(); }
-            /// Returns a const_iterator to the beginning of the map that stores all Identifiers with their names.
-            static inline std::map<std::string, Identifier*>::const_iterator getStringIdentifierMapBegin()
-                { return IdentifierManager::getStringIdentifierMap().begin(); }
-            /// Returns a const_iterator to the end of the map that stores all Identifiers with their names.
-            static inline std::map<std::string, Identifier*>::const_iterator getStringIdentifierMapEnd()
-                { return IdentifierManager::getStringIdentifierMap().end(); }
-
+            inline const std::map<std::string, Identifier*>& getIdentifierByStringMap()
+                { return this->identifierByString_; }
             /// Returns the map that stores all Identifiers with their names in lowercase.
-            static inline const std::map<std::string, Identifier*>& getLowercaseStringIdentifierMap()
-                { return IdentifierManager::getLowercaseStringIdentifierMapIntern(); }
-            /// Returns a const_iterator to the beginning of the map that stores all Identifiers with their names in lowercase.
-            static inline std::map<std::string, Identifier*>::const_iterator getLowercaseStringIdentifierMapBegin()
-                { return IdentifierManager::getLowercaseStringIdentifierMap().begin(); }
-            /// Returns a const_iterator to the end of the map that stores all Identifiers with their names in lowercase.
-            static inline std::map<std::string, Identifier*>::const_iterator getLowercaseStringIdentifierMapEnd()
-                { return IdentifierManager::getLowercaseStringIdentifierMap().end(); }
-
+            inline const std::map<std::string, Identifier*>& getIdentifierByLowercaseStringMap()
+                { return this->identifierByLowercaseString_; }
             /// Returns the map that stores all Identifiers with their IDs.
-            static inline const std::map<uint32_t, Identifier*>& getIDIdentifierMap()
-                { return IdentifierManager::getIDIdentifierMapIntern(); }
-            /// Returns a const_iterator to the beginning of the map that stores all Identifiers with their IDs.
-            static inline std::map<uint32_t, Identifier*>::const_iterator getIDIdentifierMapBegin()
-                { return IdentifierManager::getIDIdentifierMap().begin(); }
-            /// Returns a const_iterator to the end of the map that stores all Identifiers with their IDs.
-            static inline std::map<uint32_t, Identifier*>::const_iterator getIDIdentifierMapEnd()
-                { return IdentifierManager::getIDIdentifierMap().end(); }
-
-        protected:
-            static Identifier* getIdentifierSingleton(const std::string& name, Identifier* proposal);
-
-            /// Returns the map that stores all Identifiers with their names.
-            static std::map<std::string, Identifier*>& getStringIdentifierMapIntern();
-            /// Returns the map that stores all Identifiers with their names in lowercase.
-            static std::map<std::string, Identifier*>& getLowercaseStringIdentifierMapIntern();
-            /// Returns the map that stores all Identifiers with their network IDs.
-            static std::map<uint32_t, Identifier*>& getIDIdentifierMapIntern();
+            inline const std::map<uint32_t, Identifier*>& getIdentifierByNetworkIdMap()
+                { return this->identifierByNetworkId_; }
 
         private:
+            IdentifierManager();
+            IdentifierManager(const IdentifierManager&);
+            ~IdentifierManager() {}
+
             /// Increases the hierarchyCreatingCounter_s variable, causing all new objects to store their parents.
-            inline static void startCreatingHierarchy()
+            inline void startCreatingHierarchy()
                 { hierarchyCreatingCounter_s++; }
             /// Decreases the hierarchyCreatingCounter_s variable, causing the objects to stop storing their parents.
-            inline static void stopCreatingHierarchy()
+            inline void stopCreatingHierarchy()
                 { hierarchyCreatingCounter_s--; }
 
-            static std::map<std::string, Identifier*>& getTypeIDIdentifierMap();
+            std::map<std::string, Identifier*> identifierByTypeidName_;      //!< Map with the names as received by typeid(). This is only used internally.
 
-            static int hierarchyCreatingCounter_s;                         //!< Bigger than zero if at least one Identifier stores its parents (its an int instead of a bool to avoid conflicts with multithreading)
-            static unsigned int classIDCounter_s;                          //!< Static counter for the unique classIDs
+            std::map<std::string, Identifier*> identifierByString_;          //!< Map that stores all Identifiers with their names.
+            std::map<std::string, Identifier*> identifierByLowercaseString_; //!< Map that stores all Identifiers with their names in lowercase.
+            std::map<uint32_t, Identifier*> identifierByNetworkId_;          //!< Returns the map that stores all Identifiers with their network IDs.
+
+            int hierarchyCreatingCounter_s;                         //!< Bigger than zero if at least one Identifier stores its parents (its an int instead of a bool to avoid conflicts with multithreading)
+            std::set<const Identifier*> identifiersOfNewObject_;    //!< Used while creating the object hierarchy to keep track of the identifiers of a newly created object
+            unsigned int classIDCounter_s;                          //!< counter for the unique classIDs
     };
 }

code/trunk/src/libraries/core/class/OrxonoxClass.h

@@ -50 +50 @@
     /**
         @brief This is the class from which all objects of the game-logic (not the engine) are derived from.
-
-        The BaseObject and other classes are derived with @c virtual @c public @c OrxonoxClass from OrxonoxClass.
     */
     class _CoreExport OrxonoxClass : virtual public Configurable, virtual public Destroyable
     {
+        public:
+            OrxonoxClass();
     };
 }

code/trunk/src/libraries/core/class/OrxonoxInterface.h

@@ -50 +50 @@
     class _CoreExport OrxonoxInterface : virtual public Configurable, virtual public Destroyable
     {
+        public:
+            OrxonoxInterface();
     };
 }

code/trunk/src/libraries/core/class/SubclassIdentifier.h

@@ -163 +163 @@
 
             /// Creates a new object of the type of the assigned Identifier and dynamic_casts it to the minimal type given by T.
-            T* fabricate(BaseObject* creator) const
-            {
-                OrxonoxClass* newObject = this->identifier_->fabricate(creator);
+            T* fabricate(Context* context) const
+            {
+                Identifiable* newObject = this->identifier_->fabricate(context);
 
                 // Check if the creation was successful

code/trunk/src/libraries/core/class/Super.h

@@ -103 +103 @@
             { \
                 ClassIdentifier<T>* identifier = ClassIdentifier<T>::getIdentifier(); \
-                for (std::set<const Identifier*>::iterator it = identifier->getDirectChildrenIntern().begin(); it != identifier->getDirectChildrenIntern().end(); ++it) \
+                for (std::set<const Identifier*>::iterator it = identifier->getDirectChildren().begin(); it != identifier->getDirectChildren().end(); ++it) \
                 { \
                     if (((ClassIdentifier<T>*)(*it))->bSuperFunctionCaller_##functionname##_isFallback_ && ((ClassIdentifier<T>*)(*it))->superFunctionCaller_##functionname##_) \
@@ -171 +171 @@
 
                 // Iterate through all children
-                for (std::set<const Identifier*>::iterator it = identifier->getDirectChildrenIntern().begin(); it != identifier->getDirectChildrenIntern().end(); ++it)
+                for (std::set<const Identifier*>::iterator it = identifier->getDirectChildren().begin(); it != identifier->getDirectChildren().end(); ++it)
                 {
                     // Check if the caller is a fallback-caller