(:documentation
"Returns database type")
(:method (database)
- (signal-nodb-error database)))
+ (signal-no-database-error database)))
(defgeneric database-initialize-database-type (database-type)
(defgeneric database-connect (connection-spec database-type)
(:documentation "Internal generic implementation of connect."))
+(defgeneric database-reconnect (database)
+ (:method ((database t))
+ (signal-no-database-error database))
+ (:documentation "Internal generic implementation of reconnect."))
+
(defgeneric database-disconnect (database)
- (:method ((database closed-database))
- (signal-closed-database-error database))
(:method ((database t))
- (signal-nodb-error database))
+ (signal-no-database-error database))
(:documentation "Internal generic implementation of disconnect."))
(defgeneric database-query (query-expression database result-types)
- (:method (query-expression (database closed-database) result-types)
- (declare (ignore query-expression result-types))
- (signal-closed-database-error database))
(:method (query-expression (database t) result-types)
(declare (ignore query-expression result-types))
- (signal-nodb-error database))
+ (signal-no-database-error database))
(:documentation "Internal generic implementation of query."))
(defgeneric database-execute-command (sql-expression database)
- (:method (sql-expression (database closed-database))
- (declare (ignore sql-expression))
- (signal-closed-database-error database))
(:method (sql-expression (database t))
(declare (ignore sql-expression))
- (signal-nodb-error database))
+ (signal-no-database-error database))
(:documentation "Internal generic implementation of execute-command."))
;;; Mapping and iteration
(defgeneric database-query-result-set
(query-expression database &key full-set result-types)
- (:method (query-expression (database closed-database) &key full-set result-types)
- (declare (ignore query-expression full-set result-types))
- (signal-closed-database-error database)
- (values nil nil nil))
(:method (query-expression (database t) &key full-set result-types)
(declare (ignore query-expression full-set result-types))
- (signal-nodb-error database)
+ (signal-no-database-error database)
(values nil nil nil))
(:documentation
"Internal generic implementation of query mapping. Starts the
function should signal a clsql-sql-error."))
(defgeneric database-dump-result-set (result-set database)
- (:method (result-set (database closed-database))
- (declare (ignore result-set))
- (signal-closed-database-error database))
(:method (result-set (database t))
(declare (ignore result-set))
- (signal-nodb-error database))
+ (signal-no-database-error database))
(:documentation "Dumps the received result-set."))
(defgeneric database-store-next-row (result-set database list)
- (:method (result-set (database closed-database) list)
- (declare (ignore result-set list))
- (signal-closed-database-error database))
(:method (result-set (database t) list)
(declare (ignore result-set list))
- (signal-nodb-error database))
+ (signal-no-database-error database))
(:documentation
"Returns t and stores the next row in the result set in list or
returns nil when result-set is finished."))
"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-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)
+ (:method ((database t))
+ (signal-no-database-error database))
+ (:documentation "Remove all data from database."))
+
+(defgeneric database-describe-table (database table)
+ (:method ((database t) table)
+ (declare (ignore table))
+ (signal-no-database-error database))
+ (:documentation "Return a list of name/type for columns in table"))
+
(defgeneric database-destory (connection-spec type)
(:documentation
"Destroys a database, returns T if successfull or signals an error
(defgeneric database-delete-large-object (object-id database)
(:documentation "Deletes the large object in the database"))
+
+
+;; Checks for closed database
+
+(defmethod database-disconnect :before ((database database))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(defmethod database-query :before (query-expression (database database)
+ result-set)
+ (declare (ignore query-expression result-set))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(defmethod database-execute-command :before (sql-expression (database database))
+ (declare (ignore sql-expression))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(defmethod database-query-result-set :before (expr (database database)
+ &key full-set result-types)
+ (declare (ignore expr full-set result-types))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(defmethod database-dump-result-set :before (result-set (database database))
+ (declare (ignore result-set))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(defmethod database-store-next-row :before (result-set (database database) list)
+ (declare (ignore result-set list))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(defmethod database-commit-transaction :before ((database database))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(defmethod database-start-transaction :before ((database database))
+ (unless (is-database-open database)
+ (signal-closed-database-error database)))
+
+(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"))
+