Neo4J Spatial - GeoPipeline pagination question - Neo4j

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Message from discussion Neo4J Spatial - GeoPipeline pagination question
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Date: Wed, 30 May 2012 11:16:46 +0300
Message-ID: <CA+A8vzHJQisO3a-90w+Jt5nkembb6EVbi8Viqj5k234pYXU...@mail.gmail.com>
Subject: Re: [Neo4j] Neo4J Spatial - GeoPipeline pagination question
From: Eugen Paraschiv <hanrisel...@gmail.com>
To: neo4j@googlegroups.com
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Well, is a polygon based search, so we may be getting sets of over 10000
(without pagination of course) - that's not really practical to display so
my thinking was to simply do a paginated search - retrieve a range (page)
of these results, but be able to show the total number of results also (or
at least if there are more to be had, even if I cannot get the actual total
number).
On the solution of getting all of them and doing pagination in memory -
that's certainly an option, but given the large number of results, I'd
rather not if the API could help me there - especially since this is a
relatively standard pagination scenario - you ask for a range, and the
result includes that range and also the total count of the result.
Thanks.
Eugen.

On Wed, May 30, 2012 at 9:18 AM, Peter Neubauer <
peter.neuba...@neotechnology.com> wrote:

> Well,
> how much results are you getting back? You might want to collect all
> results in a list and paginate that?
>
> Cheers,
>
> /peter neubauer
>
> G:  neubauer.peter
> S:  peter.neubauer
> P:  +46 704 106975
> L:   http://www.linkedin.com/in/neubauer
> T:   @peterneubauer
>
> If you can write, you can code - @coderdojomalmo
> If you can sketch, you can use a graph database - @neo4j
>
>
> On Mon, May 28, 2012 at 10:44 PM, Eugen Paraschiv <hanrisel...@gmail.com>
> wrote:
> > Hi,
> > I'm performing some paginated spatial searches (within a polygon):
> > (GeoPipeline) GeoPipeline.startIntersectWindowSearch(neo4JStorage,
> > polygon.getEnvelopeInternal()).withinFilter(polygon).range(from, to);
> > Everything works well - I'm getting the correct number of results
> (specified
> > by that range). I'm now trying to also get the total number of hits from
> the
> > GeoPipeline result, but the API of that class is extremely diverse and
> I'm
> > not quite sure that what I'm trying to do is even possible.
> > Any help is greatly appreciated.
> > Thanks.
> > Eugen.
>

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Well, is a polygon based search, so we may be getting sets of over 10000 (w=
ithout pagination of course) - that&#39;s not really practical to display s=
o my thinking was to simply do a paginated search - retrieve a range (page)=
 of these results, but be able to show the total number of results also (or=
 at least if there are more to be had, even if I cannot get the actual tota=
l number). <br>
On the solution of getting all of them and doing pagination in memory - tha=
t&#39;s certainly an option, but given the large number of results, I&#39;d=
 rather not if the API could help me there - especially since this is a rel=
atively standard pagination scenario - you ask for a range, and the result =
includes that range and also the total count of the result. <br>
Thanks. <br>Eugen. <br><br><div class=3D"gmail_quote">On Wed, May 30, 2012 =
at 9:18 AM, Peter Neubauer <span dir=3D"ltr">&lt;<a href=3D"mailto:peter.ne=
uba...@neotechnology.com" target=3D"_blank">peter.neuba...@neotechnology.co=
m</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Well,<br>
how much results are you getting back? You might want to collect all<br>
results in a list and paginate that?<br>
<br>
Cheers,<br>
<br>
/peter neubauer<br>
<br>
G: =A0neubauer.peter<br>
S: =A0peter.neubauer<br>
P: =A0<a href=3D"tel:%2B46%20704%20106975" value=3D"+46704106975">+46 704 1=
06975</a><br>
L:=A0 =A0<a href=3D"http://www.linkedin.com/in/neubauer" target=3D"_blank">=
http://www.linkedin.com/in/neubauer</a><br>
T: =A0 @peterneubauer<br>
<br>
If you can write, you can code - @coderdojomalmo<br>
If you can sketch, you can use a graph database - @neo4j<br>
<br>
<br>
On Mon, May 28, 2012 at 10:44 PM, Eugen Paraschiv &lt;<a href=3D"mailto:han=
risel...@gmail.com">hanrisel...@gmail.com</a>&gt; wrote:<br>
&gt; Hi,<br>
&gt; I&#39;m performing some paginated spatial searches (within a polygon):=
<br>
&gt; (GeoPipeline) GeoPipeline.startIntersectWindowSearch(neo4JStorage,<br>
&gt; polygon.getEnvelopeInternal()).withinFilter(polygon).range(from, to);<=
br>
&gt; Everything works well - I&#39;m getting the correct number of results =
(specified<br>
&gt; by that range). I&#39;m now trying to also get the total number of hit=
s from the<br>
&gt; GeoPipeline result, but the API of that class is extremely diverse and=
 I&#39;m<br>
&gt; not quite sure that what I&#39;m trying to do is even possible.<br>
&gt; Any help is greatly appreciated.<br>
&gt; Thanks.<br>
&gt; Eugen.<br>
</blockquote></div><br>

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