public void add(ResultNode rhs) {
        byte[] nb = new byte[value.getData().length + rhs.getRaw().length];
        System.arraycopy(value.getData(), 0, nb, 0, value.getData().length);
        System.arraycopy(rhs.getRaw(), 0, nb, value.getData().length, rhs.getRaw().length);
        value = new RawData(nb);
    }
Sets the value of this result.

@param value The value to set.
@return This, to allow chaining.
searchlib/src/main/java/com/yahoo/searchlib/expression/RawResultNode.java