_ Git - ldk-java/blob - src/main/java/org/ldk/structs/EventHandler.java

   1 package org.ldk.structs;
   2
   3 import org.ldk.impl.bindings;
   4 import org.ldk.enums.*;
   5 import org.ldk.util.*;
   6 import java.util.Arrays;
   7 import java.lang.ref.Reference;
   8 import javax.annotation.Nullable;
   9
  10 /**
  11  * A trait implemented for objects handling events from [`EventsProvider`].
  12  */
  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;
  21         }
  22         @Override @SuppressWarnings("deprecation")
  23         protected void finalize() throws Throwable {
  24                 if (ptr != 0) { bindings.EventHandler_free(ptr); } super.finalize();
  25         }
  26
  27         public static interface EventHandlerInterface {
  28                 /**
  29                  * Handles the given [`Event`].
  30                  *
  31                  * See [`EventsProvider`] for details that must be considered when implementing this method.
  32                  */
  33                 void handle_event(Event event);
  34         }
  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);
  42                                 Reference.reachabilityFence(arg);
  43                         }
  44                 });
  45                 return impl_holder.held;
  46         }
  47         /**
  48          * Handles the given [`Event`].
  49          *
  50          * See [`EventsProvider`] for details that must be considered when implementing this method.
  51          */
  52         public void handle_event(Event event) {
  53                 bindings.EventHandler_handle_event(this.ptr, event == null ? 0 : event.ptr & ~1);
  54                 Reference.reachabilityFence(this);
  55                 Reference.reachabilityFence(event);
  56         }
  57
  58 }