import be.maximvdw.placeholderapi.PlaceholderReplaceEvent; //导入依赖的package包/类
@Override
public String onPlaceholderReplace(PlaceholderReplaceEvent event) {
    Player player = event.getPlayer();

    if (player == null) {
        return "Player is required.";
    }

    UserData user = instance.getDataManager().getUser(player.getUniqueId(), false);

    if (user == null) {
        return "User data not found.";
    }

    switch (event.getPlaceholder()) {
        case "duels_wins":
            return String.valueOf(user.get(UserData.StatsType.WINS));
        case "duels_losses":
            return String.valueOf(user.get(UserData.StatsType.LOSSES));
        case "duels_request_enabled":
            return user.canRequest() ? "enabled" : "disabled";
    }

    return "Invalid placeholder.";
}
 

import be.maximvdw.placeholderapi.PlaceholderReplaceEvent; //导入依赖的package包/类
@Override
public boolean registerPlaceholder(uSkyBlock plugin, final PlaceholderReplacer replacer) {
    if (isAvailable()) {
        be.maximvdw.placeholderapi.PlaceholderReplacer proxy = new be.maximvdw.placeholderapi.PlaceholderReplacer() {
            @Override
            public String onPlaceholderReplace(PlaceholderReplaceEvent e) {
                log.info("Placeholder: " + e.getPlaceholder());
                if (replacer.getPlaceholders().contains(e.getPlaceholder())) {
                    return replacer.replace(e.getOfflinePlayer(), e.getPlayer(), e.getPlaceholder());
                }
                return null;
            }
        };
        for (String placeholder : replacer.getPlaceholders()) {
            be.maximvdw.placeholderapi.PlaceholderAPI.registerPlaceholder(plugin, placeholder, proxy);
        }
        return true;
    }
    return false;
}
 

import be.maximvdw.placeholderapi.PlaceholderReplaceEvent; //导入依赖的package包/类
public static void registerPlaceHolder(Loader loader, String name, final FeatherBoardReplaceEvent event) {
    if (loader instanceof BukkitLoader) {
        if (Bukkit.getPluginManager().isPluginEnabled("MVdWPlaceholderAPI")) {
            PlaceholderAPI.registerPlaceholder((Plugin) loader, name, new PlaceholderReplacer() {
                @Override
                public String onPlaceholderReplace(PlaceholderReplaceEvent placeholderReplaceEvent) {
                    return event.getValue(placeholderReplaceEvent.getOfflinePlayer().getName(), placeholderReplaceEvent.isOnline());
                }
            });
        }
    }
}
 

import be.maximvdw.placeholderapi.PlaceholderReplaceEvent; //导入依赖的package包/类
@Override
public String onPlaceholderReplace(PlaceholderReplaceEvent event) {
    return playerReplacer.apply(event.getPlayer());
}
 

import be.maximvdw.placeholderapi.PlaceholderReplaceEvent; //导入依赖的package包/类
@Override
public String onPlaceholderReplace(PlaceholderReplaceEvent event) {
    return lastReplacer.get();
}
 

import be.maximvdw.placeholderapi.PlaceholderReplaceEvent; //导入依赖的package包/类
@Override
public String onPlaceholderReplace(PlaceholderReplaceEvent event) {
    return rankReplacer.apply(rank);
}