geotools - Neo4j Spatial over REST through the JAVA API not working (for me) -



geotools - Neo4j Spatial over REST through the JAVA API not working (for me) -

i'm working on grails app on neo4j i'd export gis database.

looking @ examples how utilize neo4j in geoserver/udig appears spatial integration via embedded neo4j databases.

does know whether it's possible set things neo4j available on rest, can interface variety of places?

at first sight appears ought possible:

// works embedded database //def graphdb = new graphdatabasefactory().newembeddeddatabase("/tmp/foo.db"); // doesn't work rest database graphdb = new restgraphdatabase("http://localhost:7474/db/data"); transaction tx = graphdb.begintx() spatialdatabaseservice spatialservice = new spatialdatabaseservice(graphdb) simplepointlayer layer = spatialservice.createsimplepointlayer("points")

with embedded database, spatial index gets created fine. however, rest database, null pointer:

caused nullpointerexception: null ->> 149 | createcompiler in org.neo4j.cypher.executionengine - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | 48 | <init> in '' | 59 | createinnerengine in org.neo4j.cypher.javacompat.executionengine | 43 | <init> in '' | 41 | getreferencenode in org.neo4j.gis.spatial.utilities.referencenodes | 78 | getspatialroot in org.neo4j.gis.spatial.spatialdatabaseservice | 114 | getlayer in '' | 259 | containslayer in '' | 303 | createlayer in '' | 287 | createsimplepointlayer in '' | 267 | createsimplepointlayer in '' | 37 | <init> in net.foo.db.neo4j.neo4jservice

the spatialdatabaseservice takes graphdatabaseservice, i'm confused why doesn't work rest one.

is bug or feature (or misunderstanding on part?)

i can, of course, utilize create index api create spatial index:

graphdb.index().fornodes( "points", ["provider": "spatial", "geometry_type": "point", "lat": "lat", "lon":"lon"])

so works, can't create new layer way.

the restgraphdatabase false database doesn't offer capabilities. made work in theory very wasteful each presumably embedded operation go on wire http requests.

install spatial plugin server , access via plugin rest methods.

see: http://neo4j-contrib.github.io/spatial/#spatial-server-plugin

neo4j geotools neo4j-spatial

-

Comments

Post a Comment

Popular posts from this blog

formatting - SAS SQL Datepart function returning odd values -

formatting - SAS SQL Datepart function returning odd values - i'm having massive problem project can't seem right. i'm trying modify info variable in datetime format. first info 30mar12:00:00:00. i've been advised utilize code below returns value 30mar60:5:30:00. want date component , have no thought how info got exported in format wasn't in microsoft access. i've tried several mods code 1 time again comes blank or sends error message. proc sql; update dataset set date = datepart(date); quit; any advice appreciated. i'm guessing variable date numeric , formatted datetime. 1 time you've carried out conversion, alter format date9. sas datetime value number of seconds since 01 jan 1960, whereas dates number of days since 01 jan 1960. both stored numbers, using right format display value key. illustration below. data _null_; a='30mar12:00:00:00'dt; b=datepart(a); c=b; format b datetime. c date9.; set b c; run; ...
Read more

c++ - Apple Mach-O Linker Error(Duplicate Symbols For Architecture armv7) -

c++ - Apple Mach-O Linker Error(Duplicate Symbols For Architecture armv7) - here error: duplicate symbol _objc_metaclass_$_bfapplinkreturntorefererview in: /users/user/documents/facebooksdk/facebooksdk.framework/facebooksdk(bfapplinkreturntorefererview.o) /users/user/desktop/project/project/project/assets/facebook/editor/ios/facebooksdk/facebooksdk.a(bfapplinkreturntorefererview.o) ld: 889 duplicate symbols architecture armv7 clang: error: linker command failed exit code 1 (use -v see invocation) i have searched find solution of error couldn't. there tons of similar error this, 1 hasn't been asked yet. problem shows when add together "-objc" "other linker flags". need add together utilize admob service. problem? how can solve this? i faced same issue while integrating facebook-ios-sdk. because using 3rd party library had bolts.framework linked against it. solution found incorporate facebook-ios-sdk source code hosted on github. ...
Read more

php - Yii 2: Unable to find a class into the extension 'yii2-admin' -

php - Yii 2: Unable to find a class into the extension 'yii2-admin' - extension's github project: https://github.com/mdmsoft/yii2-admin i'm using advanced template of yii2, i've backend , frontend , common folders advanced folder. the advanced folder on same level of vendor folder. i've others extensions , working then installed yii2-admin composer php composer.phar require mdmsoft/yii2-admin "*" installation worked well. into vendor folder i've mdmsoft folder yii2-admin subfolder it. this actual content of v endor/yiisoft/extensions.php (modified composer installation, haven't manually touched it) <?php $vendordir = dirname(__dir__); homecoming array ( 'yiisoft/yii2-jui' => array ( 'name' => 'yiisoft/yii2-jui', 'version' => '2.0.0.0', 'alias' => array ( '@yii/jui' => $vendordir . '/yiisoft/yii2-jui', ...
Read more