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From Fengyun RAO <raofeng...@gmail.com>
Subject Re: How to dynamically create a MapSchema with "String" as key, not "Utf8"
Date Mon, 19 May 2014 10:33:32 GMT
Yes, I knew it. "MyType.java" was compiled using "-string".

My question is how to generate schema of Map<String, MyType> , providing
that I only have "MyType.avsc" file, but not the map schema file.

Schema.createMap(Schema myType) method generates a Map<Utf8, MyType>, not
Map<String, MyType>.


2014-05-19 18:16 GMT+08:00 Harsh J <harsh@cloudera.com>:

> You can pass -string to the avro-tools compile program, to make the
> generated classes use String/CharSequence and not Utf8.
>
> On Mon, May 19, 2014 at 1:37 PM, Fengyun RAO <raofengyun@gmail.com> wrote:
> > I've noticed the jira page:
> https://issues.apache.org/jira/browse/AVRO-803,
> > and known how to generate a Map<String, MyType> class using a schema
> file.
> >
> > In my case, the schema file is “MyType.avsc”, and I used avro-tools to
> > generate a "MyType.java" class,
> > My question is how to dynamically create a MapSchema of Map<String,
> MyType>,
> > since I have to Ser/De a Map<String, MyType>.
> >
> > I tried to use the method Schema.createMap(Schema myType), but the key is
> > "Utf8" not "String".
>
>
>
> --
> Harsh J
>

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