@Override
    public int[] read(ScanBuffer buffer) {
        int length = getLength(buffer);
        if (length<0) return null;
        return buffer.getInts(length);
    }
@ Override public int [ ] read ( ScanBuffer buffer ) { int length = getLength ( buffer ) ; if ( length < 0 ) return null ; return buffer . getInts ( length ) ; }
############### Serialization ###################