Re: confused by two add method of Put class

[Julian Wissmann]

They do the exact same thing. In fact the non-KV add looks like this:

public Put add(byte [] family, byte [] qualifier, long ts, byte [] value) {

    List<KeyValue> list = getKeyValueList(family);

    KeyValue kv = createPutKeyValue(family, qualifier, ts, value);

    list.add(kv);

    familyMap.put(kv.getFamily(), list);

    return this;

  }

So there is a KeyValue created within the method.

There are use cases, where either one is easier to use to achieve things.

Cheers

Julian

2012/9/2 Lin Ma <lin...@gmail.com>

> Hello HBase masters,
>
> For the two add methods of Put class,
>
>
> http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/Put.html#add%28org.apache.hadoop.hbase.KeyValue%29
>
>
> http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/Put.html#add%28byte[],%20byte[],%20long,%20byte[]%29
>
> I think they are both write to a cell in HBase by row-key, column family
> name, column name and time stamp. I have not found any special functions
> provided by the KeyValue based method compared to the other one. Any
> comments about special function which KeyValue based method could achieve?
>
> regards,
> Lin
>