information gone to the web-page taken from README.
Sun Sep 16 16:03:07 PDT 2007 Ryszard Szopa <>
* information gone to the web-page taken from README.
diff -rN -u old-submarine/doc/README new-submarine/doc/README
--- old-submarine/doc/README 2014-07-26 10:15:58.000000000 -0700
+++ new-submarine/doc/README 2014-07-26 10:15:58.000000000 -0700
@@ -8,98 +8,16 @@
supports an intuitive way of expressing both one-to-many and
many-to-many relations.
-Getting submarine
+You can get more information about the project from its website,
-At the moment there's only a darcs repository available:
- darcs get
-You will also need my MOP utilities, which may be incorporated into
-submarine in the close future:
- darcs get
-Submarine depends on Postmodern and Iterate.
-It uses also my library of MOP utilities, MOP-UTILS, which may become
-a separate library in the future. On platforms other than SBCL,
-mop-utils needs Closer-mop.
-Submarine is released under a BSD-like license. Which approximately
-means you can use the code in whatever way you like, except for
-passing it off as your own or releasing a modified version without
-indication that it is not the original.
-Relation to Postmodern
-Submarine started as a patch that added, among others, foreign keys
-support to Postmodern. This meant hacking the DEFTABLE macro and
-TABLE and TABLEFIELD classes. After some time I realized that my
-modified Postmodern macros had become far too large and heavy to be
-easy maintainable. So, I decided to leave Postmodern's code as it was
-and write a separate library.
-Introduction for Postmodern users
-Submarine tries to keep as much as possible of Postmodern's original
-API. I use the same terminology, and functions with similar names will
-probably do very similar things. My purpose was twofold. First of all,
-I wanted to make porting programs using Postmodern to Submarine
-easy. Secondly, this would allow me to use some of Marijn Haverbeke's
-superb documentation nearly without any changes.
-Main differences between Postmodern and Submarine:
- * You don't have to create DAO (database access object) classes and SQL
-tables separately. You just create classes belonging to a certain
-metaclass, and the library cares of the rest.
- * If the table with an appropriate name exists in the database,
-Submarine will test if it has columns with the right names and
-types. If a column does not exist or has a wrong type, Submarine will
-offer the user a possibility to fix it. Submarine will warn, but do
-nothing about any additional columns in the table.
- * Each DB-CLASS class has its own connection specification. This means
-that you can just access your objects, without wrapping them in a
-WITH-CONNECTION macro, and they will care about setting the right
- * DAO is a basis class for DB-CLASS classes, and methods that are
-supposed to work on an object of any DB-CLASS class use DAO as a
-dispatch type. Of course, you don't have to use DAO as a base class,
-but it makes a lot of things easier.
- * Submarine supports foreign keys. If you define a DB-CLASS class
-with a slot whose type is another DB-CLASS, it is treated as foreign
-key and an appropriate constraint is added to the database.
- * Submarine provides a function to retrieve all the elements of a
-given type standing in a many-to-one relation with some DAO object.
- * The DEF-MANY-TO-MANY macro defines a many-to-many relation between
-two classes and creates methods appropriate to their retrieval (it
-creates a link table in the database).
- * DB-CLASS slots have an additional attribute TRANSIENT. If you set
-it to a non-NIL value, it will behave just as a
-STANDARD-SLOT-DEFINITION and will be ignored in database related
- * Submarine uses MOP rather than macros to achieve its purposes. This
-makes it easier to maintain and to extend.
-At the moment there's no real documentation apart from docstrings, but
-there's a poor man's tutorial in the file
- (this
-should give you a pretty good overview of the possibilities of
+See the file license.txt
+Ryszard Szopa <>.
+Any comments or patches are very welcome.
\ No newline at end of file