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Posted to common-dev@hadoop.apache.org by "Pete Wyckoff (JIRA)" <ji...@apache.org> on 2008/09/18 19:24:44 UTC
[jira] Created: (HADOOP-4203) implement LineReader (ie Text)
Serialization/Serializer/Deserializer
implement LineReader (ie Text) Serialization/Serializer/Deserializer
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Key: HADOOP-4203
URL: https://issues.apache.org/jira/browse/HADOOP-4203
Project: Hadoop Core
Issue Type: New Feature
Components: mapred
Reporter: Pete Wyckoff
Priority: Minor
Implement a wrapper around LineRecordReader.LineReader so as to support Text in the Serialization framework.
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[jira] Commented: (HADOOP-4203) implement LineReader (ie Text)
Serialization/Serializer/Deserializer
Posted by "Owen O'Malley (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-4203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12633900#action_12633900 ]
Owen O'Malley commented on HADOOP-4203:
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This doesn't make any sense. We already have TextInputFormat and SequenceFileInputFormat. Sequence File's can already handle Text using the serialization framework.
> implement LineReader (ie Text) Serialization/Serializer/Deserializer
> --------------------------------------------------------------------
>
> Key: HADOOP-4203
> URL: https://issues.apache.org/jira/browse/HADOOP-4203
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Reporter: Pete Wyckoff
> Priority: Minor
>
> Implement a wrapper around LineRecordReader.LineReader so as to support Text in the Serialization framework.
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[jira] Resolved: (HADOOP-4203) implement LineReader (ie Text)
Serialization/Serializer/Deserializer
Posted by "Pete Wyckoff (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-4203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pete Wyckoff resolved HADOOP-4203.
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Resolution: Invalid
Fair enough. I was opening it for the (unpopular) idea of the generic RecordReader for anything implementing the Serialization framework. i.e., RecordReader<V>/RecordReader<Serialization<K>, Serialization<V>> { } . Of course, I didn't know much about Generics at the time and now see it is impossible to implement since one cannot do a new K() or new V(). Without that, one would have to rely on the Serialization implementation for getting the class which is also not popular.
> implement LineReader (ie Text) Serialization/Serializer/Deserializer
> --------------------------------------------------------------------
>
> Key: HADOOP-4203
> URL: https://issues.apache.org/jira/browse/HADOOP-4203
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Reporter: Pete Wyckoff
> Priority: Minor
>
> Implement a wrapper around LineRecordReader.LineReader so as to support Text in the Serialization framework.
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