Re: [JPP-Devel] R: Fwd: [Freegis-list] Binary Format For Features

2007-03-30 Thread Michaël Michaud
Hi Paolo, Nice to hear you, you surely have a good experience about database-access. I like the idea of an embedded database. I have made some tests in the past with jump+hsqldb, but I didn't get any memory improvement (I have not much dbms knowledge and I may have done mistakes leading to some

Re: [JPP-Devel] R: Fwd: [Freegis-list] Binary Format For Features

2007-03-30 Thread Sunburned Surveyor
Paolo, There were a couple of reasons why I wanted to avoid using a database for this system. The first reason is complexity. As soon as we start using a database we begin to deal with things like SQL, JDBC, and database configurations. We are really attempting to integrate a second peice of very

[JPP-Devel] R: Fwd: [Freegis-list] Binary Format For Features

2007-03-30 Thread P . Rizzi Ag . Mobilità Ambiente
What about using a Java embedded database like HSQL or Derby??? They already can manage in-memory / persistence of any kind of data and they do it very well I believe... You should only keep each Feature's primary keys and, probably, it's bounds. The db engine will take care of everything else. Als