Re: [hibernate-dev] [HSEARCH] Geospatial indexing and queries
On 5 déc. 2011, at 17:01, Sanne Grinovero wrote:
Thanks! Looks like a great start.
Some questions/considerations:
# In case of multi-level grids, I'd assume that the option is
specified only on the mapping, but doesn't need to be specified at
Query time?
That's correct.
# Not using anything fancy from the Lucene side correct? Just exact
term matches with boolean operators?
yep. Lucene / Solr spatial is in a moving state and we don't think we need the fancy
things they are planning. We will revisit when they come up with something but I don't
think we will.
# Who are those geosuckers ?
Nicolas tried to argue with me that building a time based circle was hard. I believe he
and the whole profession are too lazy :)
# I would consider it very useful to provide scoring according to
distance; shouldn't be hard to make a custom Similarity which does
that, might be much harder to create one which is actually fast
enough, but I believe there are several examples in the Lucene
community.
If you have some pointers, send them to Nicolas or even better open a jira issue for
variable scoring and add the data to it.
To answer your question on "centeredOn", I'd avoid a strong dependency
on JTS. The "Object" option you propose could be an interface, and we
create a factory class which returns them; users should then be able
to use the JTS enabled factory or a dumb one.
How would that look in practice?