diff base/database/generics.lisp @ 309:7038c3dc0a5a

Add some generic functions for querying the database in amuse-database-admin.

Ignore-this: d2516f9e731f2e7a079d8a094c70e927

How much general functionality should there be here?
The basic idea is a generalisation of mtp-admin, but there is a lot still to do.

darcs-hash:20100223150341-16a00-46cb41323450b18e21a4fff2cdaf7d38e9c572dc.gz

--- a/base/database/generics.lisp	Fri Feb 12 10:19:00 2010 +0000
+++ b/base/database/generics.lisp	Tue Feb 23 15:03:41 2010 +0000
@@ -1,3 +1,24 @@
 (cl:in-package #:amuse-database-admin)
 
 (defgeneric make-composition-identifier (package composition-id))
+
+
+;;;====================================================================
+;;; Generic functions for querying the database
+;;;
+;;; FIXME: how sane is this? The idea was to have a general mtp-admin.
+;;;
+;;; What about arbitrary SQL conditions? Might be useful for general
+;;; searching, and defining new datasets (which I currently do by
+;;; writing the resuls of a SQL query to a file (e.g. `all the Beatles
+;;; songs'), and then reading the file into lisp). Amuse-midi-db
+;;; implements these methods.
+;;;
+;;; Also, should this kind of generality be extended to data import
+;;; and export?
+;;; =====================================================================
+
+(defgeneric list-collections (package-object &key compositions stream))
+
+(defgeneric list-compositions (package-object &key
+					      collection-identifier stream))