"reverse engineering" tool ?

Hello,

before I start to write a dirty function to speed up our development,
I'd like to check if anybody already has such a tool...

We don't use any modelling tool to extend our database model, but
sometimes we need to write an equivalent java class for some table. Also
something like the opposite of pbeans (http://pbeans.sourceforge.net/)

My idea is to write a simple procedure that generate a "start with"
template as plain text using pg_catalog to get the table definition.

the output could be something like that :

public class tableName
{

PreparedStatement stmt = null;
Connection conn = null;

String <column1>;
boolean <column2>;
int <column3>;
...

public tableName (<javaType> Integer.parseInt( uid), Connection
conn)
{
this.conn = conn;

try
{
stmt = conn.prepareStatement("select * from <tablename>
where <primary key> = ?");
stmt.set<Type>(1, Integer.parseInt( uid));

ResultSet rs = stmt.executeQuery();

if (! rs.next())
{
throw new someException...("Not Found !");
}
else
{

this.<column1> = rs.get...;
this.<column2> = rs.get...;
this.<column3> = rs.get...;
....

}
rs.close();
}
catch(SQLException e)
{
throw new someException("...",e);
}
}



+ autogenerated methods to get / update the table fields ...