X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=base%2Fdb-interface.lisp;h=3bf550c7f4a7e1568caebacc18fdcf5f5303395a;hb=3ec4277531c7c19b1cffade823d3e2e3f928ceb3;hp=4f1dc209ee4eb218d9085cac8854618e4fe3323c;hpb=2c14c425a4a203e03b74b868fdf727ea0d48572a;p=clsql.git

diff --git a/base/db-interface.lisp b/base/db-interface.lisp
index 4f1dc20..3bf550c 100644
--- a/base/db-interface.lisp
+++ b/base/db-interface.lisp
@@ -113,14 +113,21 @@ returns nil when result-set is finished."))
    "Creates a database, returns T if successfull or signals an error."))
 
 (defgeneric database-probe (connection-spec type)
+  (:method (spec type)
+    (declare (ignore spec))
+    (warn "database-proe not support for database-type ~A." type))
   (:documentation
    "Probes for the existence of a database, returns T if database found or NIL 
 if not found. May signal an error if unable to communicate with database server."))
 
+(defgeneric database-list (connection-spec type)
+  (:method (spec type)
+    (declare (ignore spec))
+    (warn "database-list not support for database-type ~A." type))
+  (:documentation
+   "Lists all databases found for TYPE. May signal an error if unable to communicate with database server."))
+
 (defgeneric database-destroy (connection-spec database)
-  (:method (connection-spec (database t))
-	   (declare (ignore connection-spec))
-	   (signal-no-database-error database))
   (:documentation "Destroys (drops) a database."))
 
 (defgeneric database-truncate (database)
@@ -179,6 +186,9 @@ the given lisp type and parameters."))
 (defgeneric database-list-indexes (database &key owner)
   (:documentation "List all indexes in the DATABASE."))
 
+(defgeneric database-list-table-indexes (table database &key owner)
+  (:documentation "List all indexes for a table in the DATABASE."))
+
 (defgeneric database-list-attributes (table database &key owner)
   (:documentation "List all attributes in TABLE."))
 
@@ -194,6 +204,20 @@ the given lisp type and parameters."))
 (defgeneric oid (object)
   (:documentation "Return the unique ID of a database object."))
 
+;;; Database backend capabilities
+
+(defgeneric database-underlying-type (database)
+  (:method (database)
+    (database-type database))
+  (:documentation "Returns the type of the underlying database. For ODBC, needs to query ODBC driver."))
+
+(defgeneric db-use-column-on-drop-index? (db-type)
+  (:method (db-type)
+	   (declare (ignore db-type))
+	   ;; Standard SQL does not use column name on DROP INDEX
+	   nil)
+  (:documentation "NIL [default] lif database-type does not use column name on DROP INDEX."))
+
 
 ;;; Large objects support (Marc Battyani)
 
@@ -254,3 +278,7 @@ the given lisp type and parameters."))
 (defmethod database-abort-transaction :before ((database database))
   (unless (is-database-open database)
     (signal-closed-database-error database)))
+
+(defgeneric describe-table (table &key database)
+  (:documentation "Describes a table, returns a list of name/type for columns in table"))
+