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 * An async variation also exists for implementations of [`EventsProvider`] that support async
14 * event handling. The async event handler should satisfy the generic bounds: `F:
15 * core::future::Future, H: Fn(Event) -> F`.
17 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
18 public class EventHandler extends CommonBase {
19 final bindings.LDKEventHandler bindings_instance;
20 EventHandler(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
21 private EventHandler(bindings.LDKEventHandler arg) {
22 super(bindings.LDKEventHandler_new(arg));
23 this.ptrs_to.add(arg);
24 this.bindings_instance = arg;
26 @Override @SuppressWarnings("deprecation")
27 protected void finalize() throws Throwable {
28 if (ptr != 0) { bindings.EventHandler_free(ptr); } super.finalize();
31 public static interface EventHandlerInterface {
33 * Handles the given [`Event`].
35 * See [`EventsProvider`] for details that must be considered when implementing this method.
37 void handle_event(Event event);
39 private static class LDKEventHandlerHolder { EventHandler held; }
40 public static EventHandler new_impl(EventHandlerInterface arg) {
41 final LDKEventHandlerHolder impl_holder = new LDKEventHandlerHolder();
42 impl_holder.held = new EventHandler(new bindings.LDKEventHandler() {
43 @Override public void handle_event(long event) {
44 org.ldk.structs.Event event_hu_conv = org.ldk.structs.Event.constr_from_ptr(event);
45 if (event_hu_conv != null) { event_hu_conv.ptrs_to.add(this); };
46 arg.handle_event(event_hu_conv);
47 Reference.reachabilityFence(arg);
50 return impl_holder.held;
53 * Handles the given [`Event`].
55 * See [`EventsProvider`] for details that must be considered when implementing this method.
57 public void handle_event(org.ldk.structs.Event event) {
58 bindings.EventHandler_handle_event(this.ptr, event.ptr);
59 Reference.reachabilityFence(this);
60 Reference.reachabilityFence(event);