code: @Override
      public final Long fromBytes(Class targetClass, byte[] bytes)
      {
          if (bytes == null || bytes.length != 8)
          {
              if (log.isWarnEnabled())
              {
                  log.warn("Bytes length not equal to 8");
              }
              return null;
          }
          return (ByteBuffer.wrap(bytes).getLong());
      }
docs: /*
  (non-Javadoc)
  
  @see com.impetus.kundera.property.PropertyAccessor#fromBytes(byte[])