@Override
public void write(DataOutput out) throws IOException {
DataIoUtil.writeString(out, key);
DataIoUtil.writeString(out, docuuid);
DataIoUtil.writeString(out, xml);
}
@Override
public void readFields(DataInput in) throws IOException {
key = DataIoUtil.readString(in);
docuuid = DataIoUtil.readString(in);
xml = DataIoUtil.readString(in);
}