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https://issues.apache.org/jira/browse/HBASE-4176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081478#comment-13081478
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Anirudh Todi commented on HBASE-4176:
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@Stack and @Ted - thanks for reviewing the patch!
The patch does not depend on hbase-1744.
@Stack - I am not changing the meaning of LESS_OR_EQUAL, GREATER etc - if you
look at the existing version of CompareFilter, LESS_OR_EQUAL seems to
correspond to "<" instead of "<=" and vice verse for LESS. The same goes for
GREATER and GREATER_OR_EQUAL and for EQUAL and NOT_EQUAL
@Stack when you say you should be able to specify a filter using the full
package name - does that mean the filter string could look like:
{noformat}
"org.apache.hadoop.hbase.filter.KeyOnlyFilter()"
{noformat}
@Stack - I thought a great deal about how I would implement it without
hard-coding the names of the filters I am supporting.
However, I was unable to come up with anything. if you or anyone else has an
idea - I'd love to hear it
@Stack - I would have to look into how we would extend this mini-language to
allow one to construct Filter objects from the shell. It's an interesting idea
though!
> Exposing HBase Filters to the Thrift API
> ----------------------------------------
>
> Key: HBASE-4176
> URL: https://issues.apache.org/jira/browse/HBASE-4176
> Project: HBase
> Issue Type: Improvement
> Components: thrift
> Reporter: Anirudh Todi
> Assignee: Anirudh Todi
> Priority: Minor
> Attachments: Filter Language.docx, HBASE-4176.patch
>
>
> Currently, to use any of the filters, one has to explicitly add a scanner for
> the filter in the Thrift API making it messy and long. With this patch, I am
> trying to add support for all the filters in a clean way. The user specifies
> a filter via a string. The string is parsed on the server to construct the
> filter. More information can be found in the attached document named Filter
> Language
> This patch is trying to extend and further the progress made by the patches
> in the HBASE-1744 JIRA (https://issues.apache.org/jira/browse/HBASE-1744)
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