1 package org.ldk.structs;
3 import org.ldk.impl.bindings;
4 import org.ldk.enums.*;
6 import java.util.Arrays;
7 import java.lang.ref.Reference;
8 import javax.annotation.Nullable;
11 * A trait implemented for objects handling events from [`EventsProvider`].
13 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
14 public class EventHandler extends CommonBase {
15 final bindings.LDKEventHandler bindings_instance;
16 EventHandler(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
17 private EventHandler(bindings.LDKEventHandler arg) {
18 super(bindings.LDKEventHandler_new(arg));
19 this.ptrs_to.add(arg);
20 this.bindings_instance = arg;
22 @Override @SuppressWarnings("deprecation")
23 protected void finalize() throws Throwable {
24 if (ptr != 0) { bindings.EventHandler_free(ptr); } super.finalize();
27 public static interface EventHandlerInterface {
29 * Handles the given [`Event`].
31 * See [`EventsProvider`] for details that must be considered when implementing this method.
33 void handle_event(Event event);
35 private static class LDKEventHandlerHolder { EventHandler held; }
36 public static EventHandler new_impl(EventHandlerInterface arg) {
37 final LDKEventHandlerHolder impl_holder = new LDKEventHandlerHolder();
38 impl_holder.held = new EventHandler(new bindings.LDKEventHandler() {
39 @Override public void handle_event(long event) {
40 Event event_hu_conv = Event.constr_from_ptr(event);
41 arg.handle_event(event_hu_conv);
44 return impl_holder.held;
47 * Handles the given [`Event`].
49 * See [`EventsProvider`] for details that must be considered when implementing this method.
51 public void handle_event(Event event) {
52 bindings.EventHandler_handle_event(this.ptr, event == null ? 0 : event.ptr & ~1);
53 Reference.reachabilityFence(this);
54 Reference.reachabilityFence(event);