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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10091) Exposing HBase DataTypes to non-Java interfaces
Date Tue, 01 Apr 2014 17:13:22 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13956775#comment-13956775
] 

Nick Dimiduk commented on HBASE-10091:
--------------------------------------

Looks like [~navis] has been thinking about how to specify a composite as well.

> Exposing HBase DataTypes to non-Java interfaces
> -----------------------------------------------
>
>                 Key: HBASE-10091
>                 URL: https://issues.apache.org/jira/browse/HBASE-10091
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Client
>            Reporter: Nick Dimiduk
>
> Access to the DataType implementations introduced in HBASE-8693 is currently limited
to consumers of the Java API. It is not easy to specify a data type in non-Java environments,
such as the HBase shell, REST or Thrift Gateways, command-line arguments to our utility MapReduce
jobs, or in integration points such as a (hypothetical extension to) Hive's HBaseStorageHandler.
See examples where this limitation impedes in HBASE-8593 and HBASE-10071.
> I propose the implementation of a type definition DSL, similar to the language defined
for Filters in HBASE-4176. By implementing this in core HBase, it can be reused in all of
the situations described previously. The parser for this DSL must support arbitrary type extensions,
just as the Filter parser allows for new Filter types to be registered at runtime.



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