+package org.ldk.structs;
+
+import org.ldk.impl.bindings;
+import org.ldk.enums.*;
+import org.ldk.util.*;
+import java.util.Arrays;
+import java.lang.ref.Reference;
+import javax.annotation.Nullable;
+
+/**
+ * The `UtxoLookup` trait defines behavior for accessing on-chain UTXOs.
+ */
+@SuppressWarnings("unchecked") // We correctly assign various generic arrays
+public class UtxoLookup extends CommonBase {
+ final bindings.LDKUtxoLookup bindings_instance;
+ UtxoLookup(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
+ private UtxoLookup(bindings.LDKUtxoLookup arg) {
+ super(bindings.LDKUtxoLookup_new(arg));
+ this.ptrs_to.add(arg);
+ this.bindings_instance = arg;
+ }
+ @Override @SuppressWarnings("deprecation")
+ protected void finalize() throws Throwable {
+ if (ptr != 0) { bindings.UtxoLookup_free(ptr); } super.finalize();
+ }
+ /**
+ * Destroys the object, freeing associated resources. After this call, any access
+ * to this object may result in a SEGFAULT or worse.
+ *
+ * You should generally NEVER call this method. You should let the garbage collector
+ * do this for you when it finalizes objects. However, it may be useful for types
+ * which represent locks and should be closed immediately to avoid holding locks
+ * until the GC runs.
+ */
+ public void destroy() {
+ if (ptr != 0) { bindings.UtxoLookup_free(ptr); }
+ ptr = 0;
+ }
+ public static interface UtxoLookupInterface {
+ /**
+ * Returns the transaction output of a funding transaction encoded by [`short_channel_id`].
+ * Returns an error if `genesis_hash` is for a different chain or if such a transaction output
+ * is unknown.
+ *
+ * [`short_channel_id`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#definition-of-short_channel_id
+ */
+ UtxoResult get_utxo(byte[] genesis_hash, long short_channel_id);
+ }
+ private static class LDKUtxoLookupHolder { UtxoLookup held; }
+ public static UtxoLookup new_impl(UtxoLookupInterface arg) {
+ final LDKUtxoLookupHolder impl_holder = new LDKUtxoLookupHolder();
+ impl_holder.held = new UtxoLookup(new bindings.LDKUtxoLookup() {
+ @Override public long get_utxo(byte[] genesis_hash, long short_channel_id) {
+ UtxoResult ret = arg.get_utxo(genesis_hash, short_channel_id);
+ Reference.reachabilityFence(arg);
+ long result = ret == null ? 0 : ret.clone_ptr();
+ if (impl_holder.held != null) { impl_holder.held.ptrs_to.add(ret); };
+ return result;
+ }
+ });
+ return impl_holder.held;
+ }
+ /**
+ * Returns the transaction output of a funding transaction encoded by [`short_channel_id`].
+ * Returns an error if `genesis_hash` is for a different chain or if such a transaction output
+ * is unknown.
+ *
+ * [`short_channel_id`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#definition-of-short_channel_id
+ */
+ public UtxoResult get_utxo(byte[] genesis_hash, long short_channel_id) {
+ long ret = bindings.UtxoLookup_get_utxo(this.ptr, InternalUtils.check_arr_len(genesis_hash, 32), short_channel_id);
+ Reference.reachabilityFence(this);
+ Reference.reachabilityFence(genesis_hash);
+ Reference.reachabilityFence(short_channel_id);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ org.ldk.structs.UtxoResult ret_hu_conv = org.ldk.structs.UtxoResult.constr_from_ptr(ret);
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
+ return ret_hu_conv;
+ }
+
+}