[Stargate] Add documentation for filter definition in JSON
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Key: HBASE-3482
URL: https://issues.apache.org/jira/browse/HBASE-3482
Project: HBase
Issue Type: Improvement
Components: rest
Affects Versions: 0.90.0
Reporter: Lars George
Assignee: Andrew Purtell
Priority: Minor
Fix For: 0.90.1
Copied from email in dev@:
Am I wrong or is there a lack of documentation for the FilterModel for the
filters in Stargate? The Wiki http://wiki.apache.org/hadoop/Hbase/HbaseRest
points to an old 0.20.4 documentation (although saying it is the new place) and
the other page we have is void of details on the filters for scans, i.e.
http://wiki.apache.org/hadoop/Hbase/Stargate
They are implemented in https://issues.apache.org/jira/browse/HBASE-1696 (also
see the linked https://issues.apache.org/jira/browse/HBASE-2274) but no
description is public. I used a little helper to get the details like so
{code}
import org.apache.hadoop.hbase.filter.BinaryComparator;
import org.apache.hadoop.hbase.filter.CompareFilter;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.RowFilter;
import org.apache.hadoop.hbase.rest.model.ScannerModel;
import org.apache.hadoop.hbase.util.Bytes;
public class TestFilter {
public static void main(String[] args) {
Filter f = new RowFilter(CompareFilter.CompareOp.EQUAL, new
BinaryComparator(Bytes.toBytes("testrow")));
try {
System.out.println(ScannerModel.stringifyFilter(f));
} catch (Exception e) {
e.printStackTrace();
}
}
}
{code}
giving
{code}
{"op":"EQUAL","type":"RowFilter","comparator":{"value":"dGVzdHJvdw==","type":"BinaryComparator"}}
{code}
Obviously this can be also seen from the FilterModel class but I assume we need
some documentation on that Stargate page?
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