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From <seemanto.ba...@nomura.com>
Subject RE: Converting BigDecial to ByteBuffer
Date Tue, 19 Jan 2016 15:16:48 GMT
Can you serialize the BigDecimal to byte[]. Byetbuffer has a backing byte[]. It allows off
heap mem allocation.

Seemanto Barua

From: David Newberger [mailto:david.newberger@wandcorp.com]
Sent: Tuesday, January 19, 2016 9:29 AM
To: user@avro.apache.org
Subject: Converting BigDecial to ByteBuffer

Hello All,

I have an avro schema that includes the following as a field:

  "name" : "currency",
  "type" : ["null","bytes"],
  "logicalType": "decimal",
  "precision": 9,
  "scale": 4

When I run the avro-tools on it  to create a java file representing the schema it produces
a property that looks like public java.nio.ByteBuffer currency;

However, in other parts of the program I’m using Scala with values in BigDecimal types.

How can I convert a BigDecimal value to the expected ByteBuffer?

Is there anything special I need to do to ensure it is compatible with avro and other tools
like Impala?

Also is this the correct form to using currency values?


David Newberger

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