Block MetaData not save when server restarts

Hello,

I want create a simple way to store a inventory, so I saved on Block MetaData.

All works, but when I restart the server, all metadata saved is lost, may I do someting wrong?

Here my code.

Code:

if(args[1].equals("save"))
{
    Block b = player.getWorld().getBlockAt(Integer.valueOf(args[2]), Integer.valueOf(args[3]), Integer.valueOf(args[4]));
    b.setMetadata("inventory", new FixedMetadataValue(EhShop.getShopPlugin(), ItemSerialization.toBase64(player.getInventory())));
}
 
if(args[1].equals("open"))
{
    Block b = player.getWorld().getBlockAt(Integer.valueOf(args[2]), Integer.valueOf(args[3]), Integer.valueOf(args[4]));
    Inventory i = ItemSerialization.fromBase64(b.getMetadata("inventory").get(0).asString());
    player.openInventory(i);
}

I used ItemSerialization from https://gist.github.com/aadnk/4342379 to convert inventory to String.

 

Metadata isn't persistent.

 

Hmm, now that explains everything. But is there any way I can do this without using files or mysql?

 

To be properly philosophical, I'm certain you could come up with some way to avoid files or databases.

But no, files or a database are by far the simplest ways to do it.