But if you do so, how do you add new values to your collection?
Without the index i did it like that:
public void setProperty(Vertex vertex, String key, String value) {
Set<String> keys = vertex.getPropertyKeys();
List<String> values = null;
if(keys.contains(key)) {
values = (List<String>)vertex.getProperty(key);
values.add(value);
} else {
values = new ArrayList<String>();
values.add(value);
}
vertex.setProperty(key, values);
}
And with the index you cant do that:
Exception in thread "main"
com.orientechnologies.orient.core.exception.ODatabaseException: Error on
saving record in cluster #11
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordAbstract.executeSaveRecord(ODatabaseRecordAbstract.java:1052)
at
com.orientechnologies.orient.core.tx.OTransactionNoTx.saveRecord(OTransactionNoTx.java:82)
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordTx.save(ODatabaseRecordTx.java:333)
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordTx.save(ODatabaseRecordTx.java:42)
at
com.orientechnologies.orient.core.record.ORecordAbstract.save(ORecordAbstract.java:333)
at
com.orientechnologies.orient.core.record.impl.ODocument.save(ODocument.java:1381)
at
com.orientechnologies.orient.core.record.impl.ODocument.save(ODocument.java:1370)
at
com.orientechnologies.orient.core.record.impl.ODocument.save(ODocument.java:1359)
at
com.tinkerpop.blueprints.impls.orient.OrientElement.save(OrientElement.java:150)
at
com.tinkerpop.blueprints.impls.orient.OrientElement.save(OrientElement.java:133)
at
com.tinkerpop.blueprints.impls.orient.OrientElement.setProperty(OrientElement.java:99)
Caused by: java.lang.NullPointerException
at
com.orientechnologies.orient.core.index.hashindex.local.OLocalHashTable.put(OLocalHashTable.java:212)
at
com.orientechnologies.orient.core.index.engine.OLocalHashTableIndexEngine.put(OLocalHashTableIndexEngine.java:150)
at
com.orientechnologies.orient.core.index.OIndexDictionary.put(OIndexDictionary.java:44)
at
com.orientechnologies.orient.core.index.OIndexDictionary.put(OIndexDictionary.java:29)
at
com.orientechnologies.orient.core.tx.OTransactionNoTx.addIndexEntry(OTransactionNoTx.java:186)
at
com.orientechnologies.orient.core.index.OIndexTxAware.put(OIndexTxAware.java:80)
at
com.orientechnologies.orient.core.index.OIndexTxAware.put(OIndexTxAware.java:36)
at
com.orientechnologies.orient.core.index.OClassIndexManager.processIndexUpdateFieldAssignment(OClassIndexManager.java:398)
at
com.orientechnologies.orient.core.index.OClassIndexManager.processSingleIndexUpdate(OClassIndexManager.java:369)
at
com.orientechnologies.orient.core.index.OClassIndexManager.updateIndexEntries(OClassIndexManager.java:156)
at
com.orientechnologies.orient.core.index.OClassIndexManager.onRecordAfterUpdate(OClassIndexManager.java:131)
at
com.orientechnologies.orient.core.hook.ODocumentHookAbstract.onTrigger(ODocumentHookAbstract.java:266)
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordAbstract.callbackHooks(ODatabaseRecordAbstract.java:1274)
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordAbstract.executeSaveRecord(ODatabaseRecordAbstract.java:1029)
... 14 more
Exception in thread "Thread-1" java.lang.NullPointerException
at
com.orientechnologies.orient.core.index.hashindex.local.OLocalHashTable.saveState(OLocalHashTable.java:369)
at
com.orientechnologies.orient.core.index.hashindex.local.OLocalHashTable.flush(OLocalHashTable.java:1141)
at
com.orientechnologies.orient.core.index.engine.OLocalHashTableIndexEngine.flush(OLocalHashTableIndexEngine.java:94)
at
com.orientechnologies.orient.core.index.OIndexAbstract.flush(OIndexAbstract.java:116)
at
com.orientechnologies.orient.core.index.OIndexManagerAbstract.flush(OIndexManagerAbstract.java:170)
at
com.orientechnologies.orient.core.index.OIndexManagerAbstract.close(OIndexManagerAbstract.java:282)
at
com.orientechnologies.orient.core.storage.OStorageAbstract.close(OStorageAbstract.java:120)
at
com.orientechnologies.orient.core.storage.OStorageEmbedded.close(OStorageEmbedded.java:70)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.OLocalPaginatedStorage.doClose(OLocalPaginatedStorage.java:713)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.OLocalPaginatedStorage.close(OLocalPaginatedStorage.java:672)
at com.orientechnologies.orient.core.Orient.shutdown(Orient.java:155)
at
com.orientechnologies.orient.core.OrientShutdownHook.run(OrientShutdownHook.java:28)
Am Samstag, 10. Mai 2014 18:11:03 UTC+2 schrieb Valentin Popov:
>
> Yup, it is possible
>
> But you need create properties before you add some values to such
> properties, other case ODB cant create index for properties that already
> stored on DB.
>
> Something like that
>
>
> ItemType type = ItemType.USER;
>
>
> OrientVertexType ovt = graph.getVertexType(type.getClassName());
>
>
> IndexedProperty indexProperty = IndexedProperty.EMAIL;
> String fieldName = indexProperty.getIndexKey();
> String iName = type.getClassName()+"."+fieldName;
>
>
> ovt.createProperty(fieldName, OType.EMBEDDEDLIST, OType.STRING);
> graph.getRawGraph().commit();
>
>
> ovt.createIndex(iName, INDEX_TYPE.UNIQUE, fieldName);
>
> graph.getRawGraph().commit();
>
>
>
> I am also interested in indexing properites of type EMBEDDEDLIST.
>
> Am Mittwoch, 7. Mai 2014 08:10:40 UTC+2 schrieb Valentin Popov:
>>
>> Luca, hi
>>
>> Is it possible to search in index via such properties,
>> like OType.EMBEDDEDLIST contains [admin, administrator, superuser] can I
>> search record only by name = admin?
>>
>> Regards,
>> Valentin
>>
>> вторник, 6 мая 2014 г., 23:45:22 UTC+4 пользователь Lvc@ написал:
>>>
>>> Hi,
>>> You should call:
>>>
>>> g.getVertexType("MyType").createProperty("name", OType.EMBEDDEDLIST,
>>> OType.STRING);
>>>
>>> Lvc@
>>>
>>>
>>> Lvc@
>>>
>>>
>>> On 6 May 2014 20:06, Marc Tigges <[email protected]> wrote:
>>>
>>>> Hello,
>>>>
>>>> i need a property for a vertex containing multiple values, so i tried
>>>> to find out
>>>> if i can create something like that. I found this:
>>>>
>>>> this.graph.createProperty(vertexType, "name", OType.EMBEDDEDLIST);
>>>>
>>>> But in the documentation is written:
>>>>
>>>> this is a container and needs the parameter *linked-type* or
>>>> *linked-class*
>>>>
>>>> But i need to store Strings inside the list.
>>>>
>>>> How can i create a property of a type like collection containing
>>>> strings?
>>>>
>>>> --
>>>>
>>>> ---
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>>>> Groups "OrientDB" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send
>>>> an email to [email protected].
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>>>>
>>>
>>>
> --
>
> ---
> You received this message because you are subscribed to a topic in the
> Google Groups "OrientDB" group.
> To unsubscribe from this topic, visit
> https://groups.google.com/d/topic/orient-database/xWmAWQOPKwY/unsubscribe.
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>
> Regards,
> Valentin Popov
>
>
>
>
>
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