列值范围在Hbase 0.94中过滤

Question

我想在多个列的hbase中使用范围过滤器。我知道我们可以使用SingleColumnValueFilter实现And / Or Conditions但我想对两个不同的列运行相同的过滤条件。

示例：myhbase table

rowkey,cf:bidprice,cf:askprice,cf:product

我想用(cf:bidprice>10 and cf:bidprice<20) or (cf:askprice>10 and cf:askprice<20)过滤所有行。

Answer 1

我想我明白了。下面的代码片段是一个示例实现。

byte[] startRow=Bytes.toBytes("startrow");
byte[] endRow=Bytes.toBytes("stoprow");

SingleColumnValueFilter bidPriceGreaterFilter=new SingleColumnValueFilter("q".getBytes(), "bidprice".getBytes(), CompareFilter.CompareOp.GREATER_OR_EQUAL, "12345".getBytes());
SingleColumnValueFilter bidPricelesserFilter=new SingleColumnValueFilter("q".getBytes(), "bidprice".getBytes(), CompareFilter.CompareOp.LESS_OR_EQUAL, "12346".getBytes());
SingleColumnValueFilter askPriceGreaterFilter=new SingleColumnValueFilter("q".getBytes(), "askprice".getBytes(), CompareFilter.CompareOp.GREATER_OR_EQUAL, "12345".getBytes());
SingleColumnValueFilter askPricelesserFilter=new SingleColumnValueFilter("q".getBytes(), "askprice".getBytes(), CompareFilter.CompareOp.LESS_OR_EQUAL, "12346".getBytes());

FilterList andFilter1= new FilterList(FilterList.Operator.MUST_PASS_ALL);
andFilter1.addFilter(bidPriceGreaterFilter);
andFilter1.addFilter(bidPricelesserFilter);

FilterList andFilter2= new FilterList(FilterList.Operator.MUST_PASS_ALL);
andFilter2.addFilter(askPriceGreaterFilter);
andFilter2.addFilter(askPricelesserFilter);

FilterList finalFilterList=new FilterList(FilterList.Operator.MUST_PASS_ONE);
finalFilterList.addFilter(andFilter1);
finalFilterList.addFilter(andFilter2);

Scan scan = new Scan(startRow,endRow);
scan.setFilter(finalFilterList);