CommandAPI.registerCommand(className)

Example: Registering a Warp command

Say we have a simple command /warp that is defined as follows:

@Command("warp")    
public class WarpCommand {
    
    // List of warp names and their locations
    static Map<String, Location> warps = new HashMap<>();
    
    @Default
    public static void warp(CommandSender sender) {
        sender.sendMessage("--- Warp help ---");
        sender.sendMessage("/warp - Show this help");
        sender.sendMessage("/warp <warp> - Teleport to <warp>");
        sender.sendMessage("/warp create <warpname> - Creates a warp at your current location");
    }
    
    @Default
    public static void warp(Player player, @AStringArgument String warpName) {
        player.teleport(warps.get(warpName));
    }
    
    @Subcommand("create")
    @Permission("warps.create")
    public static void createWarp(Player player, @AStringArgument String warpName) {
        warps.put(warpName, player.getLocation());
    }
    
}

We can register this in our onLoad() method so we can use this command from within Minecraft functions:

public class MyPlugin extends JavaPlugin {
    
    @Override
    public void onLoad() {
        CommandAPI.registerCommand(WarpCommand.class);
    }
    
}