Hi,
thank you very much!
In deed, node 0 doesn't have any properties.
I did not think about this.
Now it's working perfectly.
Regards,
Jean-Sébastien Stoffen
Le 28/07/11 13:26, Niels Hoogeveen a écrit :
> When iterating over all nodes, you also pull the reference node (with id =
> 0), which probably doesn't have the requested property.
> If you want to list all properties of a node, it's better to use a construct
> like:
> for(String key: node.getPropertyKeys()){
> System.out.println(node.getProperty(key));}
>
>> Date: Thu, 28 Jul 2011 13:18:50 +0200
>> From: c-...@jsnet.be
>> To: user@lists.neo4j.org
>> Subject: [Neo4j] strange problem while getting a node property
>>
>> Hi,
>> I've this strange problem when I try to collect data from the graph with
>> the Java API in Groovy :
>>
>> db.allNodes.each {node ->
>> cpt=0
>> node.getRelationships().each {rel ->
>> cpt++
>> }
>> println ("${node} ${cpt}")
>> println node.getPropertyKeys()
>> }
>>
>> The iteration on each node is right working.
>> The iteration to count the relationships on each node is working too.
>>
>> The call node.getPropertyKeys() gives me the list of the properties like
>> this :
>> [nbrel, version, maintainer, section, architecture, package, priority,
>> dataset, installedSize]
>>
>> But,
>>
>> If a call node.getProperty("package")
>> I receive this error :
>> Caught: org.neo4j.graphdb.NotFoundException: package property not found
>> for NodeImpl#0
>>
>> And, If I set the value just before, for test like this :
>> node.setProperty("package", "test")
>> println node.getProperty("package")
>>
>> I get the value.
>>
>> So I can't get property which was not set by the node.setProperty method.
>> The initial data are copied into the graph with a perl script using the
>> Neo4j REST interface.
>>
>> Maybe I do something wrong,
>> I'm a newbie in both Neo4j and Groovy
>>
>> Regards,
>> Jean-Sébastien Stoffen
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