annotate base/database/charm/methods.lisp @ 318:c4e792b9b898

Add some ideas for charm constituents.

Not particularly useful in its own right, but contains some possibly
useful ideas related to the generalisation of db-compositions.

(cl:in-package #:amuse-charm)

;;;=====================================================================
;;; identifiers
;;;=====================================================================

(defmethod id ((o constituent-identifier))
  (constituent-id o))

(defmethod id ((o constituent))
  (constituent-id (identifier o)))

(defmethod id ((o event-identifier))
  (event-id o))

(defmethod id ((o event))
  (event-id o))

(defmethod id ((o composition-identifier))
  (composition-id o))

(defmethod id ((o composition))
  (composition-id o))


;;;=====================================================================
;;; Specialised constructors
;;;=====================================================================

(defmethod make-charm-parent-identifier ((implementation
					  (eql *package*)) id)
  "A Charm constituent parent in this context is just another Charm
constituent, i.e. a constituent has been defined which as a subset of
another (parent) constituent."
  (make-charm-constituent-identifier id))

(defmethod make-charm-parent-identifier ((implementation
					  (eql (find-package
						"AMUSE-GEERDES"))) id)
  "FIXME: This should be in amuse-geerdes"
  (amuse-geerdes::g-id-file-id id))

(defmethod make-charm-particle-identifier ((impl-package
					    (eql *package*)) id)
  "A CHARM particle in this context is just another CHARM constituent,
i.e. a constituent has been defined which is the union of other
previously defined constituents."
  (make-charm-constituent-identifier id))

(defmethod make-charm-particle-identifier ((impl-package
					    (eql (find-package
						  "AMUSE-GEERDES")))
					   id)
  "FIXME: This should be in amuse-geerdes"
  (amuse-geerdes::make-geerdes-event-identifier id))

(defmethod get-charm-particles (constituent-identifier ids
				 (parent amuse-geerdes::composition))
  "FIXME: This should be in amuse-geerdes"
  (amuse-geerdes::select-events-by-ids parent ids))

(defmethod get-charm-parent ((constituent-identifier
			      amuse-geerdes::constituent-identifier))
  (amuse-geerdes::get-composition constituent-identifier))

;; (defmethod %cache-charm-particles ((impl-package (eql *package*))
;; 				   constituent)
;;   "hierarchy of constituents not yet implemented!")

;; (defmethod %cache-charm-particles ((impl-package (eql (find-package
;; 						       "AMUSE-GEERDES")))
;; 				   constituent)
;;   "FIXME: This should be in amuse-geerdes. This relies on identifier
;; and particles being in the same order! Better to have generic
;; functions within each implementation that can take a list of event
;; identifiers and return a list of events from the database? Or maybe
;; better still to make compositions proper CHARM constituents so that we
;; can use 'make-sequence-like'?"
;;   (let ((composition (amuse-geerdes::get-composition
;; 		      (parent-identifier constituent))))
;;     (loop with events = (%list-slot-sequence-data composition)
;;        for identifier in (%list-slot-sequence-data constituent)
;;        for event = (loop for events-head on events
;; 		      until (eq (event-id (car events-head))
;; 				(event-id identifier))
;; 		      finally (progn (setf events events-head)
;; 				     (return (car events-head))))
;;        collect event into cached-events
;;        finally (progn (setf (particle-cache constituent)
;; 			    cached-events)
;; 		      (return constituent)))))