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https://issues.apache.org/jira/browse/HBASE-4248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13091508#comment-13091508
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Ted Yu commented on HBASE-4248:
-------------------------------

I modified the code mentioned above and got the following list of classes which 
subclass FilterBase:
{code}
org.apache.hadoop.hbase.filter.ColumnCountGetFilter
org.apache.hadoop.hbase.filter.ColumnPaginationFilter
org.apache.hadoop.hbase.filter.ColumnPrefixFilter
org.apache.hadoop.hbase.filter.CompareFilter
org.apache.hadoop.hbase.filter.DependentColumnFilter
org.apache.hadoop.hbase.filter.FamilyFilter
org.apache.hadoop.hbase.filter.FirstKeyOnlyFilter
org.apache.hadoop.hbase.filter.InclusiveStopFilter
org.apache.hadoop.hbase.filter.KeyOnlyFilter
org.apache.hadoop.hbase.filter.PageFilter
org.apache.hadoop.hbase.filter.PrefixFilter
org.apache.hadoop.hbase.filter.QualifierFilter
org.apache.hadoop.hbase.filter.RowFilter
org.apache.hadoop.hbase.filter.SingleColumnValueExcludeFilter
org.apache.hadoop.hbase.filter.SingleColumnValueFilter
org.apache.hadoop.hbase.filter.SkipFilter
org.apache.hadoop.hbase.filter.TimestampsFilter
org.apache.hadoop.hbase.filter.ValueFilter
org.apache.hadoop.hbase.filter.WhileMatchFilter
{code}

> Enhancements for Filter Language exposing HBase filters through the Thrift API
> ------------------------------------------------------------------------------
>
>                 Key: HBASE-4248
>                 URL: https://issues.apache.org/jira/browse/HBASE-4248
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Anirudh Todi
>            Assignee: Anirudh Todi
>            Priority: Minor
>         Attachments: HBASE-4248(2).patch, HBASE-4248(3).patch, 
> HBASE-4248.patch
>
>
> HBASE-4176 enabled a Filter Language to expose HBase filters to the Thrift 
> API. Here I make a couple of improvements to the that patch:
> - Enables a "show_filters" command from the HBase shell that lists the 
> filters from the shell
> - Moves the creation of the HashMaps into a static block - so that they 
> aren't initialized every time an RPC call is made

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