X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=sql%2Fdb-interface.lisp;h=9c17b544dd0268993a6022e13b3677fadb107959;hb=b9e89e0d84e8ab8d3e8d9ac02e3349bac908b415;hp=031d1e8ae7fb7b8f632acd056b398bcd288550dd;hpb=e9e1a810cd690a31c0258f1aad313aeae18a8906;p=clsql.git

diff --git a/sql/db-interface.lisp b/sql/db-interface.lisp
index 031d1e8..9c17b54 100644
--- a/sql/db-interface.lisp
+++ b/sql/db-interface.lisp
@@ -9,9 +9,7 @@
 ;;;;                onShoreD to support UncommonSQL front-end
 ;;;; Date Started:  Feb 2002
 ;;;;
-;;;; $Id$
-;;;;
-;;;; This file, part of CLSQL, is Copyright (c) 2002-2004 by Kevin M. Rosenberg
+;;;; This file, part of CLSQL, is Copyright (c) 2002-2010 by Kevin M. Rosenberg
 ;;;; and Copyright (c) 1999-2001 by Pierre R. Mai, and onShoreD
 ;;;;
 ;;;; CLSQL users are granted the rights to distribute and use this software
@@ -374,6 +372,12 @@ of TYPE_NAME (keyword) PRECISION SCALE NULLABLE.")
            t)
   (:documentation "T [default] if database-type supports EXCEPT."))
 
+(defgeneric db-type-has-auto-increment? (db-type)
+  (:method (db-type)
+    (declare (ignore db-type)
+	     nil))
+  (:documentation "NIL [default] if database-type supports auto-incrementing columns."))
+
 ;;; Large objects support (Marc Battyani)
 
 (defgeneric database-create-large-object (database)
@@ -421,6 +425,20 @@ 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))