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From "Runping Qi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1277) The class generated by Hadoop Record rcc should provide a static method to return the DDL string
Date Fri, 20 Apr 2007 06:03:15 GMT
The class generated by Hadoop Record rcc should provide a static method to return the DDL string
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                 Key: HADOOP-1277
                 URL: https://issues.apache.org/jira/browse/HADOOP-1277
             Project: Hadoop
          Issue Type: New Feature
            Reporter: Runping Qi


The method will look like:

public static string getDDL();

With this class, when a map/reduce job write out sequence file swith such a generated class
as its value class, the job
can also save the DDL of the class into a file.

With such a file around, we can implement a record reader that can generate the required class
on demand, thus, can read 
a sequence file of Hadoop Records without having the class a priori.


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