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From Aljoscha Krettek <aljos...@apache.org>
Subject Re: Function input type validation
Date Mon, 09 Nov 2015 07:49:38 GMT
I see Gyula’s point. In the case of the TupleTypeInfo subclass it only works because the
equals method of TypleTypeInfo is used, IMHO.

Stupid implementation mistakes should be caught by the Java type checker. I don’t think
it would allows passing a Map<String, String> to the map method if the type of the DataSet
is Integer. The problem is that it is possible to have several TypeInformation implementation
that would be a valid TypeInformation for a given type. (And the downstream operator has to
use the TypeInformation from upstream, that was set using returns. Otherwise the binary format
would not be compatible.)
> On 08 Nov 2015, at 23:45, Timo Walther <twalthr@apache.org> wrote:
> MapFunction

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