FAQ
The class generated by Hadoop Record rcc should provide a static method to return the DDL string
------------------------------------------------------------------------------------------------

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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  • Sameer Paranjpye (JIRA) at Jun 27, 2007 at 5:17 pm
    [ https://issues.apache.org/jira/browse/HADOOP-1277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Sameer Paranjpye updated HADOOP-1277:
    -------------------------------------

    Component/s: record
    The class generated by Hadoop Record rcc should provide a static method to return the DDL string
    ------------------------------------------------------------------------------------------------

    Key: HADOOP-1277
    URL: https://issues.apache.org/jira/browse/HADOOP-1277
    Project: Hadoop
    Issue Type: New Feature
    Components: record
    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.
    --
    This message is automatically generated by JIRA.
    -
    You can reply to this email to add a comment to the issue online.

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groupcommon-dev @
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postedApr 20, '07 at 6:03a
activeJun 27, '07 at 5:17p
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Sameer Paranjpye (JIRA): 2 posts

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