标签:style blog color java 使用 strong 数据 for
SingleColumnValueFilter
过滤某列值大于多少小于多少:
List<Filter> filters = new ArrayList<Filter>();
filters.add( new SingleColumnValueFilter(Bytes.toBytes("pinfo"), //列族
Bytes.toBytes("t"), //列名
CompareOp.GREATER,Bytes.toBytes("1359901"]) ) //值
filters.add( new SingleColumnValueFilter(Bytes.toBytes("pinfo"),
Bytes.toBytes("t"),
CompareOp.LESS,Bytes.toBytes("1389901"]) )
FilterList filterList1 = new FilterList(Operator.MUST_PASS_ALL,filters);
sn.setFilter(filterList1); 字符串存在list a内
for (int a=0;a<size;a++)
{
// Filter filter2 = new RowFilter(CompareOp.EQUAL,
// new RegexStringComparator(".*"+maclist.get(a)+"$"));
Filter filter2 = new RowFilter(CompareOp.EQUAL,
new SubstringComparator(maclist.get(a)));
filters.add(filter2);
}
FilterList filterList1 = new FilterList(Operator.MUST_PASS_ONE,filters);
sn.setFilter(filterList1);
不需要指定某个列,含指某个值的列的数据都取出来,混在一起
HTable table = new HTable(config, tableName);
Scan scan = new Scan();
System.out.println("只列出值包含data1的列");
Filter filter1 = new ValueFilter(CompareFilter.CompareOp.EQUAL,
new SubstringComparator("data1"));
scan.setFilter(filter1); 使用HBASE用到的几个filter SingleColumnValueFilter,RowFilter,ValueFilter,布布扣,bubuko.com
使用HBASE用到的几个filter SingleColumnValueFilter,RowFilter,ValueFilter
标签:style blog color java 使用 strong 数据 for
原文地址:http://blog.csdn.net/u011750989/article/details/38558673