Add Transaction.includedInBestChainAt

core/src/main/java/org/bitcoinj/core/Transaction.java

@@ -130,6 +130,10 @@ public int compare(final Transaction tx1, final Transaction tx2) {
     // list of transactions from a wallet, which is helpful for presenting to users.
     private Date updatedAt;
 
+    // Date of the block that includes this transaction on the best chain
+    @Nullable
+    private Date includedInBestChainAt;
+
     // This is an in memory helper only.
     private Sha256Hash hash;
 
@@ -331,6 +335,9 @@ public void setBlockAppearance(StoredBlock block, boolean bestChain, int relativ
         if (bestChain && (updatedAt == null || updatedAt.getTime() == 0 || updatedAt.getTime() > blockTime)) {
             updatedAt = new Date(blockTime);
         }
+        if (bestChain) {
+            includedInBestChainAt = new Date(blockTime);
+        }
 
         addBlockAppearance(block.getHeader().getHash(), relativityOffset);
 
@@ -471,6 +478,14 @@ public void setUpdateTime(Date updatedAt) {
         this.updatedAt = updatedAt;
     }
 
+    public Date getIncludedInBestChainAt() {
+        return includedInBestChainAt;
+    }
+
+    public void setIncludedInBestChainAt(Date includedInBestChainAt) {
+        this.includedInBestChainAt = includedInBestChainAt;
+    }
+
     /**
      * These constants are a part of a scriptSig signature on the inputs. They define the details of how a
      * transaction can be redeemed, specifically, they control how the hash of the transaction is calculated.
@@ -644,6 +659,8 @@ public String toString(@Nullable AbstractBlockChain chain) {
         s.append("  ").append(getHashAsString()).append('\n');
         if (updatedAt != null)
             s.append("  updated: ").append(Utils.dateTimeFormat(updatedAt)).append('\n');
+        if (includedInBestChainAt != null)
+            s.append("  included in best chain at: ").append(Utils.dateTimeFormat(includedInBestChainAt)).append('\n');
         if (version != 1)
             s.append("  version ").append(version).append('\n');
         if (isTimeLocked()) {