[
https://issues.apache.org/jira/browse/FLINK-4624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15506539#comment-15506539
]
Martin Junghanns commented on FLINK-4624:
-----------------------------------------
Yes, I looked into the two constructors before. The one without the class
parameter just casts to {{(Class<T>)}} and uses the other constructor. However
I cannot do
{code:java}
TypeInformation<VertexGroupItem<K, VV>> tupleTypeInfo = new
TupleTypeInfo<>(VertexGroupItem.class, keyType, keyType, eitherType,
BasicTypeInfo.LONG_TYPE_INFO);
{code}
since {{VertexGroupItem<K, VV>}} and {{VertexGroupItem}} are incompatible types.
The two options I currently see are:
* using the simple approach sketched in my first comment
* using tuple types instead of named subclasses
> Gelly's summarization algorithm cannot deal with null vertex group values
> -------------------------------------------------------------------------
>
> Key: FLINK-4624
> URL: https://issues.apache.org/jira/browse/FLINK-4624
> Project: Flink
> Issue Type: Bug
> Components: Gelly
> Reporter: Till Rohrmann
> Assignee: Martin Junghanns
> Fix For: 1.2.0
>
>
> Gelly's {{Summarization}} algorithm cannot handle null values in the
> `VertexGroupItem.f2`. This behaviour is hidden by using Strings as a vertex
> value in the {{SummarizationITCase}}, because the {{StringSerializer}} can
> handle null values.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
