MetaData to block

Hey guys/girls!

I have a problem with a plugin and I am trying to modify it myself a bit so the bug is gone, he said it was allowed so I am not doing illegal stuff here Ok anyways I try to add a METAdata to a block cause now I have this

if (block.getType() == Material.WATER
|| block.getType() == Material.STATIONARY_WATER)


But I want to add something like

|| block.getType() != Material.WATER) <- and that this WATER but than with metadata 1 so it won't do anything with water that is to small ​

Please give a full answer cause I am really basic with this, I know enough to change code and stuff like that but I have never worked with METAdata so :/

Thanks,
Runefist