Move gson to its own folder

[unical.git] / gson / com / google / gson / JsonNull.java

diff --git a/gson/com/google/gson/JsonNull.java b/gson/com/google/gson/JsonNull.java
new file mode 100755 (executable)
index 0000000..5688336
--- /dev/null
+++ b/gson/com/google/gson/JsonNull.java
@@ -0,0 +1,63 @@
+/*\r
+ * Copyright (C) 2008 Google Inc.\r
+ *\r
+ * Licensed under the Apache License, Version 2.0 (the "License");\r
+ * you may not use this file except in compliance with the License.\r
+ * You may obtain a copy of the License at\r
+ *\r
+ * http://www.apache.org/licenses/LICENSE-2.0\r
+ *\r
+ * Unless required by applicable law or agreed to in writing, software\r
+ * distributed under the License is distributed on an "AS IS" BASIS,\r
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ * See the License for the specific language governing permissions and\r
+ * limitations under the License.\r
+ */\r
+\r
+package com.google.gson;\r
+\r
+/**\r
+ * A class representing a Json {@code null} value.\r
+ *\r
+ * @author Inderjeet Singh\r
+ * @author Joel Leitch\r
+ * @since 1.2\r
+ */\r
+public final class JsonNull extends JsonElement {\r
+  /**\r
+   * singleton for JsonNull\r
+   *\r
+   * @since 1.8\r
+   */\r
+  public static final JsonNull INSTANCE = new JsonNull();\r
+\r
+  /**\r
+   * Creates a new JsonNull object.\r
+   * Deprecated since Gson version 1.8. Use {@link #INSTANCE} instead\r
+   */\r
+  @Deprecated\r
+  public JsonNull() {\r
+    // Do nothing\r
+  }\r
+\r
+  @Override\r
+  JsonNull deepCopy() {\r
+    return INSTANCE;\r
+  }\r
+\r
+  /**\r
+   * All instances of JsonNull have the same hash code since they are indistinguishable\r
+   */\r
+  @Override\r
+  public int hashCode() {\r
+    return JsonNull.class.hashCode();\r
+  }\r
+\r
+  /**\r
+   * All instances of JsonNull are the same\r
+   */\r
+  @Override\r
+  public boolean equals(Object other) {\r
+    return this == other || other instanceof JsonNull;\r
+  }\r
+}\r