nt::ObjectManager Class Reference

Owns the registry used to locate and reference database objects. More...

#include <ObjectManager.h>

Classes
class	IObject
	Base type for objects stored in the registry. More...
class	Multigroup
	Registry object representing a multigroup snapshot. More...
class	Relation
	Registry object representing a stored relation. More...
class	EphemeralRelation
	Registry object representing an ephemeral relation. More...
class	Transaction
	Abstract registry object representing a transaction. More...
class	Session
	Registry object representing an active connection's session. More...
class	Branch
	A named mutable reference to a branch-tree root. More...
class	BranchTree
	Registry object for a branch-tree blob. More...
struct	object_type
	Describes the behavior and capabilities of an object category. More...
struct	ephemeral_object_type
	Object type descriptor for EPHEMERAL_RELATION objects. More...
struct	registry_head
	Shared metadata stored at the head of a registry entry. More...
struct	registry
	Node in the object registry. More...

Public Member Functions
void	Register (std::vector< std::string > path, std::unique_ptr< IObject > object, std::unique_ptr< object_type > type)
	Registers an object under the given path, taking ownership of it.
registry *	Find (const std::vector< std::string > object_path)
	Looks into this registry and attempts to retrieve an entry.
bool	Unregister (const std::vector< std::string > &object_path)
	Removes the entry registered at object_path, if any.

Public Attributes
std::unique_ptr< registry >	entries
	Head of the registry linked list.

Detailed Description

Owns the registry used to locate and reference database objects.

The object manager is the central directory for runtime objects. It keeps the metadata needed to reason about object type, path, references, and handles while the concrete storage model is still being designed.

Member Function Documentation

Find()

ObjectManager::registry * nt::ObjectManager::Find

(

const std::vector< std::string >

object_path

)

Looks into this registry and attempts to retrieve an entry.

Parameters

object_path

Logical path to search for.

Returns

Borrowed pointer to the matching entry, or nullptr when not found.

Register()

void nt::ObjectManager::Register	(	std::vector< std::string >	path,
		std::unique_ptr< IObject >	object,
		std::unique_ptr< object_type >	type )

Registers an object under the given path, taking ownership of it.

Parameters

path	Logical object path.
object	Object payload. Ownership is transferred to the registry.
type	Object type descriptor. Ownership is transferred to the registry.

Unregister()

bool nt::ObjectManager::Unregister

(

const std::vector< std::string > &

object_path

)

Removes the entry registered at object_path, if any.

Splices the matching node out of the registry list and frees its owned object and head. No reference-count checks are performed — the caller is responsible for releasing handles and pins before calling this. Intended for disposable objects (sessions today, other disposables once GC lands in step 6).

Parameters

object_path

Logical path of the entry to remove.

Returns

True when an entry was removed, false when nothing matched.

Member Data Documentation

entries

std::unique_ptr<registry> nt::ObjectManager::entries

Head of the registry linked list.

Owned by this manager.

---

The documentation for this class was generated from the following files:

• ObjectManager.h
• ObjectManager.cpp