diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicatedEvent.java b/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicatedEvent.java
index 98435ac..844b335 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicatedEvent.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicatedEvent.java
@@ -14,6 +14,8 @@
 
 package com.googlesource.gerrit.plugins.replication;
 
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.events.ChangeEvent;
 
 import com.googlesource.gerrit.plugins.replication.ReplicationState.RefPushResult;
@@ -36,4 +38,24 @@
   private String toStatusString(RefPushResult status) {
     return status.name().toLowerCase().replace("_", "-");
   }
+
+  @Override
+  public String getType() {
+    return type;
+  }
+
+  @Override
+  public Project.NameKey getProjectNameKey() {
+    return new Project.NameKey(project);
+  }
+
+  @Override
+  public Change.Key getChangeKey() {
+    return null;
+  }
+
+  @Override
+  public String getRefName() {
+    return ref;
+  }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicationDoneEvent.java b/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicationDoneEvent.java
index 7eaed66..b15c9af 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicationDoneEvent.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/RefReplicationDoneEvent.java
@@ -14,6 +14,8 @@
 
 package com.googlesource.gerrit.plugins.replication;
 
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.events.ChangeEvent;
 
 public class RefReplicationDoneEvent extends ChangeEvent {
@@ -27,4 +29,24 @@
     this.ref = ref;
     this.nodesCount = nodesCount;
   }
+
+  @Override
+  public String getType() {
+    return type;
+  }
+
+  @Override
+  public Project.NameKey getProjectNameKey() {
+    return new Project.NameKey(project);
+  }
+
+  @Override
+  public Change.Key getChangeKey() {
+    return null;
+  }
+
+  @Override
+  public String getRefName() {
+    return ref;
+  }
 }