赫克託爲超級cf的子列做增量計算器

Question

目前，增強器似乎只適用於標準比較。有沒有其他的方法可以在super cf的子列上執行incrementCounter？

Answer 1

一小片的代碼將增加一個superColumn

與字符串鍵，supernames和名稱SuperColumns的櫃檯......

String key = "keyOfRow"; 
    String superColumnFamily = "foo"; 
    String superColumnName ="bar"; 
    StringSerializer ss = StringSerializer.get(); 
    // let's insert a couple of counter columns in a superColumn 
    String columnName1="aaa"; 
    String columnName2="bbb"; 
    List <HCounterColumn<String>> myCounters = new 
ArrayList<HCounterColumn<String>>(); 
    myCounters.add(HFactory.createCounterColumn(columnName1, 1L)); 
    myCounters.add(HFactory.createCounterColumn(columnName2, 42L)); 
    Mutator mutator = HFactory.createMutator(keyspace, 
StringSerializer.get()); 
    mutator.insertCounter(key,superColumnFamily , 
HFactory.createCounterSuperColumn(superColumnName, myCounters, ss, 
ss)); 
mutator.execute();