Reviewers: rjrjr, robertvawter,
Description:
Add a convenience base class for value type locators
Please review this at http://gwt-code-reviews.appspot.com/1428809/
Affected files:
A user/src/com/google/web/bindery/requestfactory/shared/ValueLocator.java
Index:
user/src/com/google/web/bindery/requestfactory/shared/ValueLocator.java
===================================================================
--- user/src/com/google/web/bindery/requestfactory/shared/ValueLocator.java
(revision 0)
+++ user/src/com/google/web/bindery/requestfactory/shared/ValueLocator.java
(revision 0)
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * 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.web.bindery.requestfactory.shared;
+
+/**
+ * A {@link Locator} for use with value types (as opposed to entities),
which
+ * are not persisted. Abstract methods from the {@link Locator} class that
are
+ * not relevant for value types are implemented to return {@code null}.
+ *
+ * @param <T> the type of domain object the Locator will operate on
+ */
+public abstract class ValueLocator<T> extends Locator<T, Void> {
+
+ /**
+ * Returns {@code null}.
+ */
+ @Override
+ public final Void getId(T domainObject) {
+ return null;
+ }
+
+ /**
+ * Returns {@code null}.
+ */
+ @Override
+ public final Class<Void> getIdType() {
+ return null;
+ }
+
+ /**
+ * Returns {@code null}.
+ */
+ @Override
+ public final Object getVersion(T domainObject) {
+ return null;
+ }
+}
--
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