<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
<font face="Helvetica, Arial, sans-serif">by "concrete abstraction
layers", do you mean the classes in the package org.opencms.generic or
one of the database specific ones?<br>
<br>
How long did it take you to implement your extensions? <br>
<br>
Christoph<br>
</font><br>
</body>
</html>