Update-slots-from-instance now throws an exception if it generates an update without...

[clsql.git] / sql / db-interface.lisp

diff --git a/sql/db-interface.lisp b/sql/db-interface.lisp
index 8bcc42e964902f388ff840733b49239bb1d36ced..5cdb719f3ea00cdc4915701fff2abec177aaff49 100644 (file)
--- a/sql/db-interface.lisp
+++ b/sql/db-interface.lisp
@@ -167,6 +167,12 @@ if unable to destory."))
 (defgeneric database-sequence-last (name database)
   (:documentation "Select the last value in sequence NAME in DATABASE."))
 
+(defgeneric database-last-autoincrement-id (database table column)
+  (:documentation "Many databases have the notion of an auto-increment
+  id; i.e. a sequence implicitly on a table. This function should
+  return that ID." ))
+
+
 (defgeneric database-start-transaction (database)
   (:documentation "Start a transaction in DATABASE.")
   (:method ((database t))
@@ -425,6 +431,20 @@ of TYPE_NAME (keyword) PRECISION SCALE NULLABLE.")
     nil)
   (:documentation "Free the resources of a prepared statement."))
 
+(defgeneric database-acquire-from-conn-pool (database)
+  (:documentation "Acquire a database connection from the pool.  This
+is a chance to test the connection for validity before returning it to
+the user. If this function returns NIL or throws an error that
+database connection is considered bad and we make a new one.
+
+Database objects have a chance to specialize, otherwise the default
+method uses the database-underlying-type and tries to do something
+appropriate."))
+
+(defgeneric database-release-to-conn-pool (database)
+  (:documentation "Chance for the database to cleanup before it is
+  returned to the connection pool."))
+
 ;; Checks for closed database
 
 (defmethod database-disconnect :before ((database database))