I am having problems using filters to search data in hbase .
First I am reading some data from one table and storing in a vector or
arrayList : Is there a better way or different approach to achieve the results
than what I am heading?
I am stuck trying to get the correct results with the following approach.
Wondering if any one know HBASE \ Java well and willing to help out for a fee.
I need to get over this problem.
If anyone is willing to help for a fee, send me an email at yoom @ misoccer .us
for ( Result r : rs ) { for ( KeyValue kv : r . raw ()) { if ( new String ( kv
. getFamily ()). equals ( "name" )) { temp = new String ( kv . getValue ()); x
. addElement ( temp ); } } }
Then, I want to search a different table based on the values of this vector. I
used filters to do this: (I tried BinaryPrefixComparator and BinaryComparator
as well) FilterList filterList = new FilterList ( FilterList . Operator .
MUST_PASS_ONE ); for ( int c = 0 ; c < x . size (); c ++) { System . out .
println ( x . get ( c ). toString ()); filterList . addFilter ( new
SingleColumnValueFilter ( Bytes . toBytes ( "name" ), null , CompareOp . EQUAL
, new SubstringComparator ( x . get ( c ). toString () ))); }
I should get 3 results back, however I only get one result back, the first
entry in the database. What doesn't make sense is that when I hardcode the
value that I am looking for into my code, I will get all 3 results back.
I thought there might be some issue with converting the bytes to String and
then back to bytes, but that would not explain how it was able to bring back
the first result. For some reason, it is stopping at the first match and
doesn't continue to find the other 2 rows that contain matching data. If I
hardcode it i get the results: x . addElement ( "abc123" ); filterList .
addFilter ( new SingleColumnValueFilter ( Bytes . toBytes ( "name" ), null ,
CompareOp . EQUAL , new SubstringComparator ( x . get ( 0 ). toString () )));
Does anyone know what the problem is or what I need to do to resolve my issue?
Your help is much appreciated.
Thank You
edit: Here is the contents of the tables:
TABLE1: ROW COLUMN+CELL
0 column= gpnum :, timestamp =1481300288449, value=def123
0 column= mpnum :, timestamp =1481300273355, value= abc123
0 column=price:, timestamp =1481300255337, value=85.0
1 column= gpnum :, timestamp =1481301599999, value=def2244
1 column= mpnum :, timestamp =1481301582336, value= 011511607
1 column=price:, timestamp =1481301673886, value=0.76
TABLE2
ROW COLUMN+CELL
0 column=brand:, timestamp =1481300227283, value=x
0 column= mpnum :, timestamp =1481300212289, value= abc123
0 column=price:, timestamp =1481300110950, value=50.0
1 column= mpnum :, timestamp =1481301806687, value= 011511607
1 column=price:, timestamp =1481301777345, value=1.81
13 column= webtype :, timestamp =1483507543878, value=US
3 column=avail:, timestamp =1481306538360, value=avail
3 column=brand:, timestamp =1481306538360, value=brand
3 column= descr :, timestamp =1481306538360, value=description
3 column=dist:, timestamp =1481306538360, value=distributor
3 column= mpnum :, timestamp =1481306538360, value= pnum
3 column=price:, timestamp =1481306538360, value=price
3 column= url :, timestamp =1481306538360, value= url
3 column= webtype :, timestamp =1481306538360, value= webtype
4 column=avail:, timestamp =1481306538374, value=4
4 column=brand:, timestamp =1481306538374, value=x
4 column= descr :, timestamp =1481306538374, value=description
4 column=dist:, timestamp =1481306538374, value=x
4 column= mpnum :, timestamp =1482117383212, value= 011511607
4 column=price:, timestamp =1481306538374, value=34.51
4 column= url :, timestamp =1481306538374, value=x
4 column= webtype :, timestamp =1481306538374, value=US
5 column=avail:, timestamp =1481306538378, value=
5 column=brand:, timestamp =1481306538378, value=name
5 column= descr :, timestamp =1481306538378, value=x
5 column=dist:, timestamp =1481306538378, value=x
5 column= mpnum :, timestamp =1482117392043, value= 011511607
5 column=price:, timestamp =1481306538378, value=321.412
5 column= url :, timestamp =1481306538378, value=x.com
THIRD TABLE (to store result matches)
0 column=brand:, timestamp =1481301813849, value=name
0 column= cprice :, timestamp =1481301813849, value=1.81
0 column= gpnum :, timestamp =1481301813849, value=def2244
0 column= gprice :, timestamp =1481301813849, value=0.76
0 column= mpnum :, timestamp =1481301813849, value=011511607
**should be three matches those that are in bold above but only brings back one
match
If anyone is willing to help for a fee, send me an email at yoom @ misoccer .us
Thanks,
Yoom
