start converting from bukkit to hytale

src/main/java/at/helpch/placeholderapi/events/ExpansionRegisterEvent.java

@@ -0,0 +1,89 @@
+/*
+ * This file is part of PlaceholderAPI
+ *
+ * PlaceholderAPI
+ * Copyright (c) 2015 - 2026 PlaceholderAPI Team
+ *
+ * PlaceholderAPI free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PlaceholderAPI is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package at.helpch.placeholderapi.events;
+
+import at.helpch.placeholderapi.expansion.PlaceholderExpansion;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * This event indicates that a <b>single</b> {@link PlaceholderExpansion PlaceholderExpansion} has
+ * been registered in PlaceholderAPI.
+ *
+ * <p>To know when <b>all</b> Expansions have been registered, use the
+ * {@link at.helpch.placeholderapi.events.ExpansionsLoadedEvent ExpansionsLoadedEvent} instead.
+ */
+public final class ExpansionRegisterEvent extends Event implements Cancellable {
+
+    @NotNull
+    private static final HandlerList HANDLERS = new HandlerList();
+    @NotNull
+    private final PlaceholderExpansion expansion;
+    private boolean cancelled;
+
+    public ExpansionRegisterEvent(@NotNull final PlaceholderExpansion expansion) {
+        this.expansion = expansion;
+    }
+
+    @NotNull
+    public static HandlerList getHandlerList() {
+        return HANDLERS;
+    }
+
+    /**
+     * The {@link PlaceholderExpansion PlaceholderExpansion} that was registered in PlaceholderAPI.
+     * <br>The PlaceholderExpansion will be available for use when the event
+     * {@link #isCancelled() was not cancelled}!
+     *
+     * @return Current instance of the registered {@link PlaceholderExpansion PlaceholderExpansion}
+     */
+    @NotNull
+    public PlaceholderExpansion getExpansion() {
+        return expansion;
+    }
+
+    /**
+     * Indicates if this event was cancelled or not.
+     * <br>A cancelled Event will result in the {@link #getExpansion() PlaceholderExpansion} NOT
+     * being added to PlaceholderAPI's internal list and will therefore be considered not registered
+     * anymore.
+     *
+     * @return Whether the event has been cancelled or not.
+     */
+    @Override
+    public boolean isCancelled() {
+        return cancelled;
+    }
+
+    @Override
+    public void setCancelled(boolean cancelled) {
+        this.cancelled = cancelled;
+    }
+
+    @NotNull
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLERS;
+    }
+
+}