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;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name: base-classes.lisp
;;;; Purpose: Base classes for high-level SQL interface
;;;; Programmers: Kevin M. Rosenberg based on
;;;; original code by Pierre R. Mai
;;;; Date Started: Feb 2002
;;;;
;;;; This file, part of CLSQL, is Copyright (c) 2002-2010 by Kevin M. Rosenberg
;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
;;;;
;;;; CLSQL users are granted the rights to distribute and use this software
;;;; as governed by the terms of the Lisp Lesser GNU Public License
;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
;;;; *************************************************************************
(in-package #:clsql-sys)
(defclass database ()
((name :initform nil :initarg :name :reader database-name)
(connection-spec :initform nil :initarg :connection-spec
:reader connection-spec
:documentation "Required to use connection pool.")
(database-type :initarg :database-type :initform :unknown
:reader database-type)
(encoding :initarg :encoding :initform nil
:documentation "External format character encoding.")
(state :initform :closed :reader database-state)
(autocommit :initform t :accessor database-autocommit)
(command-recording-stream :accessor command-recording-stream :initform nil)
(result-recording-stream :accessor result-recording-stream :initform nil)
(record-caches :accessor record-caches :initform nil)
(view-classes :accessor database-view-classes :initform nil)
(transaction-level :initform 0 :accessor transaction-level)
(transaction :initform nil :accessor transaction)
(conn-pool :initform nil :initarg :conn-pool :accessor conn-pool)
(attribute-cache :initform (make-hash-table :size 100 :test 'equal)
:accessor attribute-cache
:documentation "Internal cache of table attributes. It is keyed by table-name. Values
are a list of ACTION specified for table and any cached value of list-attributes-types."))
(:documentation
"This class is the supertype of all databases handled by CLSQL."))
(defmethod print-object ((object database) stream)
(print-unreadable-object (object stream :type t :identity t)
(format stream "~A ~A"
(if (slot-boundp object 'name)
(database-name object)
"<unbound>")
(database-state object)))
object)
(setf (documentation 'database-name 'function)
"Returns the name of a database.")
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