final protected void check(Block block)
{
check(block.getId()) ;
ByteBuffer bb = block.getByteBuffer() ;
if ( bb.capacity() != blockSize )
throw new BlockException(format("BlockMgrFile: Wrong size block. Expected=%d : actual=%d", blockSize, bb.capacity())) ;
if ( bb.order() != SystemTDB.NetworkOrder )
throw new BlockException("BlockMgrFile: Wrong byte order") ;
}