From 2246eac504e5593cdf4a489f97be85e2cc56dcf8 Mon Sep 17 00:00:00 2001
From: "Brian S. O'Neill" <bronee@gmail.com>
Date: Wed, 30 Aug 2006 01:37:27 +0000
Subject: Add core interfaces

---
 src/main/java/com/amazon/carbonado/Nullable.java | 44 ++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 src/main/java/com/amazon/carbonado/Nullable.java

(limited to 'src/main/java/com/amazon/carbonado/Nullable.java')

diff --git a/src/main/java/com/amazon/carbonado/Nullable.java b/src/main/java/com/amazon/carbonado/Nullable.java
new file mode 100644
index 0000000..c8ac923
--- /dev/null
+++ b/src/main/java/com/amazon/carbonado/Nullable.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2006 Amazon Technologies, Inc. or its affiliates.
+ * Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
+ * of Amazon Technologies, Inc. or its affiliates.  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.amazon.carbonado;
+
+import java.lang.annotation.*;
+
+/**
+ * Identifies that a {@link Storable} property can have a null value. By
+ * default, all Storable properties are required to have a non-null value. It
+ * is illegal to declare a property as nullable whose type is a primitive
+ * non-object.
+ *
+ * <p>Example:<pre>
+ * public interface UserInfo extends Storable&lt;UserInfo&gt; {
+ *     <b>&#64;Nullable</b>
+ *     String getName();
+ *
+ *     ...
+ * }
+ * </pre>
+ *
+ * @author Brian S O'Neill
+ */
+@Documented
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.METHOD})
+public @interface Nullable {
+}
-- 
cgit v1.2.3