@Override
    protected ExtendedCell parseCell() throws IOException {
      // No tags here
      return KeyValueUtil.createKeyValueFromInputStream(in, false);
    }
Codec that does KeyValue version 1 serialization.
<p>
Encodes Cell as serialized in KeyValue with total length prefix. This is how KVs were serialized
in Puts, Deletes and Results pre-0.96. Its what would happen if you called the Writable#write
KeyValue implementation. This encoder will fail if the passed Cell is not an old-school pre-0.96
KeyValue. Does not copy bytes writing. It just writes them direct to the passed stream.
<p>
If you wrote two KeyValues to this encoder, it would look like this in the stream:

<pre>
length-of-KeyValue1 // A java int with the length of KeyValue1 backing array
KeyValue1 backing array filled with a KeyValue serialized in its particular format
length-of-KeyValue2
KeyValue2 backing array
</pre>
hbase-common/src/main/java/org/apache/hadoop/hbase/codec/KeyValueCodec.java