Re: Named Graphs

On 16/05/14 2:22, Diego Reforgiato wrote:
> Hi Mauro,
> no, we will adapt to the one with the highest performances.

There's several options. In Java, there's Apache Jena as already 
mentioned by others, or as an alternative there's OpenRDF Sesame.

In the case of Sesame, query performance is a factor of the actual 
backing database that you choose - Sesame's pre-provided stores perform 
fine for most "medium sized" datasets, but if your needs are beyond that 
you can find plenty of third-party RDF database implementations (both 
open source and commercial) that are fully compliant with the Sesame 
APIs - making switching backends halfway through your project easy as 
you won't have to change your code.

A bit of general advice, by the way: regardless of which tool you 
choose, don't rely on published benchmarks too much to decide which tool 
"performs best". Try out several tools and see how well they work _for 
you_. Your requirements in terms of types of query, dataset size and 
form, etc. are likely different from any standard benchmark, and 
performance results may be significantly different.

Jeen
(disclaimer: Sesame developer)

Received on Thursday, 15 May 2014 22:31:12 UTC