You can put many millions relationships into an array that's no problem.
Up to 2.4 bn fit into a single array :)
Michael
Am 13.05.2014 um 10:51 schrieb Rita <ritapy...@gmail.com>:
> Hi Michael,
> Thank you for the response and idea, but I need to get relationships from
> index to update them on index and graph (I don't need transactional way).
> Relationships are many millions, so I can't put them into an array. I have to
> think to other solutions.
>
>
> Rita
>
> Il giorno lunedì 12 maggio 2014 10:35:02 UTC+2, Michael Hunger ha scritto:
> Hi Rita, I don't think this is implemented yet.
>
> The batch inserter only supports exact queries as far as I know.
>
> What you can do is to pull the data that you want to update out of the graph
> and put it into a sorted numeric array tm[id]=value
> Then you can use Arrays.binarySearch() to find the starting point for your
> min-and-max values (you might have to look further up and down the array to
> find all values).
>
> Note Arrays.binarySearch() returns -pos-1 for values it doesn't find with the
> potential insert position.
>
> Michael
>
> Am 12.05.2014 um 10:24 schrieb Rita <rita...@gmail.com>:
>
>> Anyone has got an idea about this problem, please?
>>
>>
>> Il giorno giovedì 8 maggio 2014 12:05:25 UTC+2, Rita ha scritto:
>> Hi all,
>> I need to do a numeric range (on a propertie store as long) query on my
>> relationships lucene index, using batch inserter. I am using Neo4j 1.9.5 on
>> windows machine embedded in java project.
>>
>> Here is the example code:
>>
>>
>> BatchInserterIndexProvider indexProvider = new
>> LuceneBatchInserterIndexProvider(graphBatch);
>> BatchInserterIndex indexBatch =
>> indexProvider.relationshipIndex("index", MapUtil.stringMap("type", "exact"));
>> IndexHits<Long> relHits =
>> indexBatch.query(QueryContext.numericRange("tm", (long) 0, d, true, false));
>>
>>
>>
>> I get this error :
>>
>> java.lang.NullPointerException
>> at
>> org.apache.lucene.util.SimpleStringInterner.intern(SimpleStringInterner.java:54)
>> at org.apache.lucene.util.StringHelper.intern(StringHelper.java:39)
>> at org.apache.lucene.index.Term.<init>(Term.java:38)
>> at
>> org.apache.lucene.queryParser.QueryParser.getFieldQuery(QueryParser.java:643)
>> at
>> org.apache.lucene.queryParser.QueryParser.Term(QueryParser.java:1436)
>>
>> at
>> org.apache.lucene.queryParser.QueryParser.Clause(QueryParser.java:1319)
>> at
>> org.apache.lucene.queryParser.QueryParser.Query(QueryParser.java:1245)
>> at
>> org.apache.lucene.queryParser.QueryParser.TopLevelQuery(QueryParser.java:1234)
>> at
>> org.apache.lucene.queryParser.QueryParser.parse(QueryParser.java:206)
>>
>> at org.neo4j.index.impl.lucene.IndexType.query(IndexType.java:300)
>> at
>> org.neo4j.index.impl.lucene.LuceneBatchInserterIndex.query(LuceneBatchInserterIndex.java:372)
>>
>> How can I solve?
>>
>> Usually I do the same query without problem on lucene index on db opened in
>> normal embedded mode:
>>
>> GraphDatabaseService graph = new
>> GraphDatabaseFactory().newEmbeddedDatabaseBuilder(DBgraph.path +
>> "graph").setConfig(conf).newGraphDatabase();
>> index = graph.index();
>> indexRel = index.forRelationships("index");
>> IndexHits<Relationship> rhits =
>> indexRel.query(QueryContext.numericRange("tm", (long) 0, d, true, false));
>>
>> Do I have to write the query in other way for
>> LuceneBatchInserterIndexProvider? Can does anyone explain me please?
>>
>> Thanks in advance.
>> Rita
>>
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