@Override
    public void decode(byte[] buffer, int offset, int length) {
        super.decode(buffer, offset, length);
        
        if (length > getStandardLeaseSize()) {
            // Decode directory-specific data
            int dataOffset = offset + getStandardLeaseSize();
            
            int scopeOrdinal = readInt4(buffer, dataOffset);
            this.cacheScope = DirectoryCacheScope.values()[scopeOrdinal];