db4o Developer Community

How do you write a fast program? Easy: It should only do what is absolutely necessary with the smallest number of steps possible. Isn't that ultimate laziness? Lazy == Fast ! With this idea in mind we were looking for ways to do less work in our query processor and to empower your application to be able to tell db4o to do less work. The solution ...

COR-209 is done. Snapshot and Lazy modes are implemented. They work good. Here are first test results from a Poleposition run that I created especially to demonstrate this nice new feature: http://www.db4o.com/downloads/PpCOR-209.pdf I will blog about the feature in detail in the next two or three days.

...and yes, Eric, server-side configurable snapshots to load the full index at once does make sense. That's actually really easy to implement, the new HybridQueryResult already has the functionality to do this with just one call. Good suggestions! I think we want another configuration switch and I think we want the client to manage on a ...

Carl Rosenberger:Lazy queries are now fully functional to be tested. The behaviour is optional and it is not turned on by default. The following configuration switch turns lazy queries on: Db4o.configure().lazyQueryEvaluation(true); I forgot to mention one point: In a C/S setup the client configuration determines if queries are to be executed ...

Since we have people that want to see the C/S version of lazy queries perform well, it was the obvious decision to take C/S on first. Thanks for pointing that out Travis! Lazy queries are now fully functional to be tested. The behaviour is optional and it is not turned on by default. The following configuration switch turns lazy queries ...