code: @Override
      public Double fromBytes(Class targetClass, byte[] data)
      {
          if (data == null || data.length != 8)
              return (double) 0x0;
  
          return Double.longBitsToDouble(toLong(data));
      }
docs: /*
  (non-Javadoc)
  
  @see com.impetus.kundera.property.PropertyAccessor#fromBytes(byte[])