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https://issues.apache.org/jira/browse/HBASE-5667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13240818#comment-13240818
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David Arthur commented on HBASE-5667:
-------------------------------------
@Zhihong, yes it would be incompatible if it tried to read Filters that were
serialized with the current code. I'm assuming that these Filters are ephemeral
and aren't stored anywhere (could be a very wrong assumption).
Otherwise, the purpose of this patch is to expose the ability to add regex
flags to the comparator. E.g., if I want a case-insensitive match I could
construct a Filter like:
{code}
new SingleColumnValueFilter(COLUMN_FAMILY, COLUMN_QUALIFIER, CompareOp.EQUAL,
new RegexStringComparator(Pattern.compile("foo", Pattern.CASE_INSENSITIVE |
Pattern.DOTALL)));
{code}
Also, in the current code, DOTALL is added to the underlying Pattern, but
doesn't appear to be applied when deserializing.
> RegexStringComparator supports java.util.regex.Pattern flags
> ------------------------------------------------------------
>
> Key: HBASE-5667
> URL: https://issues.apache.org/jira/browse/HBASE-5667
> Project: HBase
> Issue Type: Improvement
> Components: filters
> Reporter: David Arthur
> Priority: Minor
> Attachments: HBASE-5667.diff
>
>
> * Add constructor that takes in a Pattern
> * Add Pattern's flags to Writable fields, and actually use them when
> recomposing the Filter
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