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https://issues.apache.org/jira/browse/AVRO-1274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White updated AVRO-1274:
----------------------------
Attachment: AVRO-1274.patch
New patch with more tests for all the required/optional methods.
I have a couple of questions too.
Default values for bytes are encoded as {{"bytes" : "A"}}, e.g.:
{noformat}
{
"name" : "optionalBytesWithDefault",
"type" : [ "null", "bytes" ],
"default" : {
"bytes" : "A"
}
}
{noformat}
I couldn't find where this is covered in the spec, since the section on default
values says "Default values for bytes and fixed fields are JSON strings, where
Unicode code points 0-255 are mapped to unsigned 8-bit byte values 0-255." and
doesn't mention the "bytes" part
(http://avro.apache.org/docs/current/spec.html#schema_record). If this is
correct, should the fixed default value have "bytes" too?
I'm also confused about how default values work at read time. If I write a
record with a default optional field without specifying the field value, then
read it back the value is always null, even though the default is not null.
E.g. for
{noformat}
{
"type" : "record",
"name" : "r",
"fields" : [ {
"name" : "a",
"type" : [ "string", "null" ],
"default" : "cat"
} ]
}
{noformat}
the value read back is {"a":null} not {"a":"cat"}
What am I missing?
> Add a schema builder API
> ------------------------
>
> Key: AVRO-1274
> URL: https://issues.apache.org/jira/browse/AVRO-1274
> Project: Avro
> Issue Type: New Feature
> Components: java
> Reporter: Tom White
> Assignee: Tom White
> Attachments: AVRO-1274.patch, AVRO-1274.patch, AVRO-1274.patch
>
>
> It would be nice to have a fluent API that made it easier to construct record
> schemas.
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