diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefDatabase.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefDatabase.java
new file mode 100644
index 0000000..f4abfbc
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefDatabase.java
@@ -0,0 +1,172 @@
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.googlesource.gerrit.plugins.multisite.validation;
+
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import java.io.IOException;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import org.eclipse.jgit.lib.BatchRefUpdate;
+import org.eclipse.jgit.lib.Ref;
+import org.eclipse.jgit.lib.RefDatabase;
+import org.eclipse.jgit.lib.RefRename;
+import org.eclipse.jgit.lib.RefUpdate;
+
+public class MultiSiteRefDatabase extends RefDatabase {
+  private final MultiSiteRefUpdate.Factory refUpdateFactory;
+  private final String projectName;
+  private final RefDatabase refDatabase;
+
+  public interface Factory {
+    public MultiSiteRefDatabase create(String projectName, RefDatabase refDatabase);
+  }
+
+  @Inject
+  public MultiSiteRefDatabase(
+      MultiSiteRefUpdate.Factory refUpdateFactory,
+      @Assisted String projectName,
+      @Assisted RefDatabase refDatabase) {
+    this.refUpdateFactory = refUpdateFactory;
+    this.projectName = projectName;
+    this.refDatabase = refDatabase;
+  }
+
+  @Override
+  public int hashCode() {
+    return refDatabase.hashCode();
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    return refDatabase.equals(obj);
+  }
+
+  @Override
+  public void create() throws IOException {
+    refDatabase.create();
+  }
+
+  @Override
+  public void close() {
+    refDatabase.close();
+  }
+
+  @Override
+  public boolean isNameConflicting(String name) throws IOException {
+    return refDatabase.isNameConflicting(name);
+  }
+
+  @Override
+  public Collection<String> getConflictingNames(String name) throws IOException {
+    return refDatabase.getConflictingNames(name);
+  }
+
+  @Override
+  public RefUpdate newUpdate(String name, boolean detach) throws IOException {
+    RefUpdate refUpdate = refDatabase.newUpdate(name, detach);
+    return refUpdateFactory.create(projectName, refUpdate);
+  }
+
+  @Override
+  public RefRename newRename(String fromName, String toName) throws IOException {
+    return refDatabase.newRename(fromName, toName);
+  }
+
+  @Override
+  public BatchRefUpdate newBatchUpdate() {
+    return refDatabase.newBatchUpdate();
+  }
+
+  @Override
+  public boolean performsAtomicTransactions() {
+    return refDatabase.performsAtomicTransactions();
+  }
+
+  @Override
+  public Ref getRef(String name) throws IOException {
+    return refDatabase.getRef(name);
+  }
+
+  @Override
+  public String toString() {
+    return refDatabase.toString();
+  }
+
+  @Override
+  public Ref exactRef(String name) throws IOException {
+    return refDatabase.exactRef(name);
+  }
+
+  @Override
+  public Map<String, Ref> exactRef(String... refs) throws IOException {
+    return refDatabase.exactRef(refs);
+  }
+
+  @Override
+  public Ref firstExactRef(String... refs) throws IOException {
+    return refDatabase.firstExactRef(refs);
+  }
+
+  @Override
+  public List<Ref> getRefs() throws IOException {
+    return refDatabase.getRefs();
+  }
+
+  @SuppressWarnings("deprecation")
+  @Override
+  public Map<String, Ref> getRefs(String prefix) throws IOException {
+    return refDatabase.getRefs(prefix);
+  }
+
+  @Override
+  public List<Ref> getRefsByPrefix(String prefix) throws IOException {
+    return refDatabase.getRefsByPrefix(prefix);
+  }
+
+  @Override
+  public boolean hasRefs() throws IOException {
+    return refDatabase.hasRefs();
+  }
+
+  @Override
+  public List<Ref> getAdditionalRefs() throws IOException {
+    return refDatabase.getAdditionalRefs();
+  }
+
+  @Override
+  public Ref peel(Ref ref) throws IOException {
+    return refDatabase.peel(ref);
+  }
+
+  @Override
+  public void refresh() {
+    refDatabase.refresh();
+  }
+}
diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefDatabaseTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefDatabaseTest.java
new file mode 100644
index 0000000..36d2082
--- /dev/null
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefDatabaseTest.java
@@ -0,0 +1,70 @@
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.googlesource.gerrit.plugins.multisite.validation;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.verify;
+
+import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.zookeeper.RefFixture;
+import org.eclipse.jgit.lib.RefDatabase;
+import org.eclipse.jgit.lib.RefUpdate;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TestName;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
+
+@RunWith(MockitoJUnitRunner.class)
+public class MultiSiteRefDatabaseTest implements RefFixture {
+
+  @Rule public TestName nameRule = new TestName();
+
+  @Mock MultiSiteRefUpdate.Factory refUpdateFactoryMock;
+
+  @Mock RefDatabase refDatabaseMock;
+
+  @Mock RefUpdate refUpdateMock;
+
+  @Override
+  public String testBranch() {
+    return "branch_" + nameRule.getMethodName();
+  }
+
+  @Test
+  public void newUpdateShouldCreateMultiSiteRefUpdate() throws Exception {
+    String refName = aBranchRef();
+    MultiSiteRefDatabase multiSiteRefDb =
+        new MultiSiteRefDatabase(refUpdateFactoryMock, A_TEST_PROJECT_NAME, refDatabaseMock);
+    doReturn(refUpdateMock).when(refDatabaseMock).newUpdate(refName, false);
+
+    multiSiteRefDb.newUpdate(refName, false);
+
+    verify(refUpdateFactoryMock).create(A_TEST_PROJECT_NAME, refUpdateMock);
+  }
+}