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From lars hofhansl <lhofha...@yahoo.com>
Subject Re: Query Rows matching multiple column values
Date Tue, 03 Jan 2012 17:33:14 GMT
Hi Praveen,

FilterList is the right approach and it does support AND/OR.
Checkout the constructors that take an Operator.
You can pass FilterList.Operator.MUST_PASS_ALL for AND
or FilterList.Operator.MUST_PASS_ONE for OR.

Note that FilterLists are also filters.


For example below you'd have following setup:

FilterList(MUST_PASS_ALL)
    SingleValueColumnFilter(column1 = 'A')
    FilterList(MUST_PASS_ONE)
        SingleColumnValueFilter(column2 = 'B')
        SingleColumnValueFilter(column3 = 'C')

-- Lars



----- Original Message -----
From: "praveen.mar@wipro.com" <praveen.mar@wipro.com>
To: user@hbase.apache.org
Cc: 
Sent: Monday, January 2, 2012 10:42 PM
Subject: Query Rows matching multiple column values

Hi,

I am a newbie in HBase.

I have to use HBase Client APIs to query rows matching multiple column
values.   The query is similar to this

-    Column1 = 'A'  AND (Column2='B' OR Column2='C')

I tried using FilterList for this purpose.  But FilterList do not allow
to specify an AND/OR between different filters.

Can anyone suggest the right filter mechanism.

regards,
Praveen



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