X-Git-Url: http://git.kpe.io/?p=clsql.git;a=blobdiff_plain;f=sql%2Fdb-interface.lisp;h=3454a84ee8d992372e07ba3abf7a7c3d07258a1c;hp=ae586e8c2b8a95035a670a4a8c89253a62247a80;hb=084cdcffae7d4734d0fe9927eca8a76d83f5f0e2;hpb=0fc997848abf887f21ce12ae976ab1c61446d2c5

diff --git a/sql/db-interface.lisp b/sql/db-interface.lisp
index ae586e8..3454a84 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
@@ -169,6 +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))
@@ -376,8 +380,8 @@ of TYPE_NAME (keyword) PRECISION SCALE NULLABLE.")
 
 (defgeneric db-type-has-auto-increment? (db-type)
   (:method (db-type)
-    (declare (ignore db-type)
-	     nil))
+    (declare (ignore db-type))
+	     nil)
   (:documentation "NIL [default] if database-type supports auto-incrementing columns."))
 
 ;;; Large objects support (Marc Battyani)
@@ -427,6 +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))