mv com/google/domain/registry google/registry

This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.

java/google/registry/model/ofy/ReadOnlyWork.java

@@ -0,0 +1,41 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// 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.domain.registry.model.ofy;
+
+import com.google.domain.registry.util.Clock;
+
+import com.googlecode.objectify.Work;
+
+/** Wrapper for {@link Work} that disallows mutations and fails the transaction at the end. */
+class ReadOnlyWork<R> extends CommitLoggedWork<R> {
+
+  ReadOnlyWork(Work<R> work, Clock clock) {
+    super(work, clock);
+  }
+
+  @Override
+  protected TransactionInfo createNewTransactionInfo() {
+    return super.createNewTransactionInfo().setReadOnly();
+  }
+
+  @Override
+  public void vrun() {
+    super.vrun();
+    throw new KillTransactionException();
+  }
+
+  /** Exception used to exit a transaction. */
+  static class KillTransactionException extends RuntimeException {}
+}