| Name | Description | Type | Package | Framework |
| Folder | A Folder is a managed object representing a directory in a tree. | Class | hep.aida.ref.tree | FreeHep |
| Link | A Link is a managed object representing a symbolic link. | Class | hep.aida.ref.tree | FreeHep |
| MountPoint | A mount point allows one tree to be "mounted" in another. | Class | hep.aida.ref.tree | FreeHep |
| Tree | Class | hep.aida.ref.tree | FreeHep | |
| TreeFactory | Class | hep.aida.ref.tree | FreeHep | |
| TreeFolderDoesNotExistException | Class | hep.aida.ref.tree | FreeHep | |
| TreeObjectAlreadyExistException | Class | hep.aida.ref.tree | FreeHep | |