X-Git-Url: http://git.kpe.io/?p=clsql.git;a=blobdiff_plain;f=sql%2Fgenerics.lisp;h=6ca064a79afc6c44ddea8c5a01d754054103dd5e;hp=f022ff92947c6614368b9c61fad0e5295b54b7a3;hb=HEAD;hpb=cfb1303ed18a8a14554fbd506f52b176278ecd8e

diff --git a/sql/generics.lisp b/sql/generics.lisp
index f022ff9..6ca064a 100644
--- a/sql/generics.lisp
+++ b/sql/generics.lisp
@@ -18,6 +18,11 @@
 
 
 ;; FDML
+(defgeneric choose-database-for-instance (object &optional database)
+  (:documentation "Used by the oodml functions to select which
+ database object to use. Chooses the database associated with the
+ object primarily, falls back to the database provided as an argument
+ or the *DEFAULT-DATABASE*."))
 
 (defgeneric execute-command (expression &key database)
   (:documentation
@@ -72,7 +77,7 @@ represented by SLOTS are initialised from the values of the
 supplied slots with other attributes having default
 values. Furthermore, OBJECT becomes associated with DATABASE."))
 
-(defgeneric update-records-from-instance (object &key database this-class)
+(defgeneric update-records-from-instance (object &key database)
   (:documentation
    "Using an instance of a View Class, OBJECT, update the table
 that stores its instance data. DATABASE defaults to
@@ -82,13 +87,13 @@ case, a record is created in the appropriate table of DATABASE
 using values from the slot values of OBJECT, and OBJECT becomes
 associated with DATABASE."))
 
-(defgeneric delete-instance-records (object)
+(defgeneric delete-instance-records (object &key database)
   (:documentation
    "Deletes the records represented by OBJECT in the appropriate
 table of the database associated with OBJECT. If OBJECT is not
 yet associated with a database, an error is signalled."))
 
-(defgeneric update-instance-from-records (object &key database this-class)
+(defgeneric update-instance-from-records (object &key database)
   (:documentation
    "Updates the slot values of the View Class instance OBJECT
 using the attribute values of the appropriate table of DATABASE
@@ -117,7 +122,7 @@ effects. Methods specialised on particular View Classes can be
 used to specify any operations that need to be made on View
 Classes instances which have been updated in calls to SELECT."))
 
-(defgeneric update-slot-with-null (instance slotname slotdef)
+(defgeneric update-slot-with-null (instance slotdef)
   (:documentation "Called to update a slot when its column has a NULL
 value.  If nulls are allowed for the column, the slot's value will be
 nil, otherwise its value will be set to the result of calling
@@ -139,6 +144,27 @@ DATABASE-NULL-VALUE on the type of the slot."))
   )
 (defgeneric read-sql-value  (val type database db-type)
   )
+(defgeneric database-add-autoincrement-sequence (class database)
+  (:method (class database) nil)
+  (:documentation "If a database needs to add a sequence for its
+    autoincrement to work, this is where it should go.  Default is
+    that it doesnt so just return nil"))
+(defgeneric database-remove-autoincrement-sequence (class database)
+  (:method (class database) nil)
+  (:documentation "If a database needs to add a sequence for its
+    autoincrement to work, this is where it should go.  Default is
+    that it doesnt so just return nil"))
+(defgeneric auto-increment-sequence-name (class slotdef database)
+  (:documentation "The sequence name to create for this autoincremnt column on this class
+   if returns nil, there is no associated sequence "))
+
+(defmethod auto-increment-sequence-name :around (class slot database)
+  (when (auto-increment-column-p slot database)
+    (call-next-method)))
+
+(defgeneric database-last-auto-increment-id (database table column)
+  )
+
 
 
 ;; Generation of SQL strings from lisp expressions
@@ -167,3 +193,20 @@ the arguments EXPR and DATABASE."))
 
 (defgeneric database-constraint-statement  (constraints database)
   )
+
+(defgeneric database-translate-constraint (constraint database)
+  (:documentation "Given a column constraint returns its
+database-specific name. For example, auto-increment constraints can
+have different names in different database engines."))
+
+(defgeneric filter-select-list ( view-class clsql-sys::select-list database)
+  (:documentation
+   "Gives fine grained control over sql to be executed and mapped to slots
+    called with a dummy instance (so that class precedence can be used)")
+  )
+
+(defgeneric view-classes-and-storable-slots (view-class &key to-database-p)
+  (:documentation "A method that collects all the classes and storable slots
+   that need to be read from or written to the database.
+   to-database-p should be T if we are writing this object to the database
+   and nil when we are reading this object from the database"))