Query to read on composite columns in cassandra hector -

i need read values in cassandra column family according row key. getting 1 row key. want query keys in column family.

schema of column family

rowkey string , values in column names date:subject:marks i.e saved in db 2013-04-13 00:00:00 utc,science,99 rowkey=1

trying this

  cluster cluster = hfactory.getorcreatecluster("test cluster", "localhost:9160");   keyspace keyspaceoperator = hfactory.createkeyspace(student, cluster);   system.out.println( "connected cassandra " + cluster);   string rowkey = "1";     slicequery<string,string,string> columnquery = hfactory.createslicequery(keyspaceoperator, stringserializer.get(), stringserializer.get(), stringserializer.get());   columnquery.setcolumnfamily("studentinfo").setkey(rowkey).setrange(null, null, false, 100);   system.out.println(columnquery);   queryresult<columnslice<string,string>> result = columnquery.execute();   (hcolumn<string, string> column : result.get().getcolumns()) {     system.out.println(column.getname());   } 

can try this???

      slicequery<string,string,string> columnquery = hfactory.createslicequery(ksp, stringserializer.get(), stringserializer.get(), stringserializer.get());       columnquery.setcolumnfamily("studentinfo").setkey(rowkey).setcolumnnames("id","name");       queryresult<columnslice<string,string>> result = columnquery.execute();