1 files changed, 44 insertions, 0 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/query/change/RefPredicate.java b/gerrit-server/src/main/java/com/google/gerrit/server/query/change/RefPredicate.java
new file mode 100644
index 0000000000..f5f83e21bd
--- /dev/null
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/query/change/RefPredicate.java
@@ -0,0 +1,44 @@
+// Copyright (C) 2010 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.google.gerrit.server.query.change;
+
+import com.google.gerrit.reviewdb.Change;
+import com.google.gerrit.reviewdb.ReviewDb;
+import com.google.gerrit.server.query.OperatorPredicate;
+import com.google.gwtorm.client.OrmException;
+import com.google.inject.Provider;
+
+class RefPredicate extends OperatorPredicate<ChangeData> {
+  private final Provider<ReviewDb> dbProvider;
+
+  RefPredicate(Provider<ReviewDb> dbProvider, String ref) {
+    super(ChangeQueryBuilder.FIELD_REF, ref);
+    this.dbProvider = dbProvider;
+  }
+
+  @Override
+  public boolean match(final ChangeData object) throws OrmException {
+    Change change = object.change(dbProvider);
+    if (change == null) {
+      return false;
+    }
+    return getValue().equals(change.getDest().get());
+  }
+
+  @Override
+  public int getCost() {
+    return 1;
+  }
+}