Ok, I was wondering whether it was my live data that was the problem, but
it appears not.
I can get the code working if I explicitly get the mapping policy by hand:
Collection getLocatedObjectsOfType2(List<Class> domainClasses) {
def labels = domainClasses.collect { "\"${it.simpleName}\"" }.join
","
def cypher = "MATCH (a:Location)<-[*0..]-(b) where ANY (x IN
LABELS(b) WHERE x in [${labels}]) RETURN DISTINCT b"
def result = ee.execute(cypher)
result.columnAs('b').collect { def n ->
def className = n.getLabels().find { DynamicLabel l ->
l.name().startsWith("_") }.name().replace("_", "")
def policy =
neo4jTemplate.getMappingPolicy(Class.forName("db.domain.${className}"))
// I shouldn't need to load the policy by hand - it ought to
work if I just pass a 'null' in, no?
// policy = null
neo4jTemplate.createEntityFromStoredType(n as
PropertyContainer, policy)
}
}
I really don't understand why the auto mapping policy works in some
circumstances and not in others.
Joe
On Saturday, February 28, 2015 at 8:00:59 AM UTC, Josef Karthauser wrote:
>
> Scrub that. That just changed things but didn't fix it.
>
> I've managed to get grails to give a full stack trace and the original
> exception is being thrown as follows:
>
> Message: [Assertion failed] - this argument is required; it must not be
> null
> Line | Method
> ->> 112 | notNull in
> org.springframework.util.Assert
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> | 123 | notNull in ''
> | 159 | getPersistentEntity . . . . . . in
> org.springframework.data.mapping.context.AbstractMappingContext
> | 81 | read in
> org.springframework.data.neo4j.support.mapping.Neo4jEntityConverterImpl
> | 170 | read . . . . . . . . . . . . . in
> org.springframework.data.neo4j.support.mapping.Neo4jEntityPersister$CachedConverter
> | 189 | createEntityFromState in
> org.springframework.data.neo4j.support.mapping.Neo4jEntityPersister
> | 57 | createEntityFromStoredType . . in ''
> | -1 | call in
> org.springframework.data.neo4j.mapping.EntityPersister$createEntityFromStoredType
>
> Joe
>
> On Saturday, February 28, 2015 at 7:33:06 AM UTC, Josef Karthauser wrote:
>>
>> That doesn't fix it, unfortunately. :( (My entities are in db.domain)
>>
>> But, I have made some progress. I can get it to work if I explicitly
>> create the entity from the persister:
>>
>> result.columnAs('b').collect { def n ->
>>
>> neo4jTemplate.infrastructure.getEntityPersister().createEntityFromStoredType(n,
>>
>> neo4jTemplate)
>> }
>>
>> That's bizarre.
>>
>> Joe
>>
>> On Saturday, February 28, 2015 at 12:40:35 AM UTC, Michael Hunger wrote:
>>>
>>> this should point to your domain package, something like this
>>>
>>> neo4j.'config'( 'graphDatabaseService':
>>> "graphDatabaseService", 'base-package': *"db.entities.neo4j"* )
>>>
>>> Am 27.02.2015 um 18:12 schrieb Dr Josef Karthauser <
>>> [email protected]>:
>>>
>>> On 27 Feb 2015, at 14:04, Dr Josef Karthauser <
>>> [email protected]> wrote:
>>>
>>>
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