@Override
    public String toString() {
        ByteBuffer buf = value.slice();
        byte[] arr = new byte[buf.remaining()];
        buf.get(arr);
        return com.yahoo.io.HexDump.toHexString(arr);
    }
A field value which is an array of byte data

@author Einar M R Rosenvinge
document/src/main/java/com/yahoo/document/datatypes/Raw.java