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https://issues.apache.org/jira/browse/AVRO-1214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Kulp updated AVRO-1214:
------------------------------
Resolution: Fixed
Assignee: Daniel Kulp
Status: Resolved (was: Patch Available)
> Generated protocol's method should return void instead of Void like one-way
> message
> -----------------------------------------------------------------------------------
>
> Key: AVRO-1214
> URL: https://issues.apache.org/jira/browse/AVRO-1214
> Project: Apache Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.7.2
> Reporter: Sébastien Launay
> Assignee: Daniel Kulp
> Priority: Minor
> Fix For: 1.9.0
>
> Attachments: AVRO-1214-unbox-void-2012-12-05.patch
>
>
> Using the following IDL:
> {noformat}
> @namespace("org.apache.avro.test")
> protocol Simple {
> error TestError {
> string message;
> }
> string hello(string greeting);
> void `error`() throws TestError;
> void ping() oneway;
> }
> {noformat}
> Will produce the interface:
> {code:java}
> package org.apache.avro.test;
> public interface Simple {
> public static final org.apache.avro.Protocol PROTOCOL =
> org.apache.avro.Protocol.parse("...");
> java.lang.CharSequence hello(java.lang.CharSequence greeting) throws
> org.apache.avro.AvroRemoteException;
> java.lang.Void error() throws org.apache.avro.AvroRemoteException,
> org.apache.avro.test.TestError;
> void ping();
> public interface Callback extends Simple {
> public static final org.apache.avro.Protocol PROTOCOL =
> org.apache.avro.test.Simple.PROTOCOL;
> void hello(java.lang.CharSequence greeting,
> org.apache.avro.ipc.Callback<java.lang.CharSequence> callback) throws
> java.io.IOException;
> void error(org.apache.avro.ipc.Callback<java.lang.Void> callback) throws
> java.io.IOException;
> }
> }
> {code}
> Then one is forced to add {{return null;}} statement(s) in the interface
> implementation for the {{error()}} method which can be a bit cumbersome and
> that's not the case for the oneway {{ping()}} method.
> This is fine on the Callback though because the developer can just ignore the
> callback argument.
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