1 files changed, 46 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/app/TransitionStore.java b/src/com/android/gallery3d/app/TransitionStore.java
new file mode 100644
index 000000000..aa38ed77e
--- /dev/null
+++ b/src/com/android/gallery3d/app/TransitionStore.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2012 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.android.gallery3d.app;
+
+import java.util.HashMap;
+
+public class TransitionStore {
+    private HashMap<Object, Object> mStorage = new HashMap<Object, Object>();
+
+    public void put(Object key, Object value) {
+        mStorage.put(key, value);
+    }
+
+    public <T> void putIfNotPresent(Object key, T valueIfNull) {
+        mStorage.put(key, get(key, valueIfNull));
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T> T get(Object key) {
+        return (T) mStorage.get(key);
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T> T get(Object key, T valueIfNull) {
+        T value = (T) mStorage.get(key);
+        return value == null ? valueIfNull : value;
+    }
+
+    public void clear() {
+        mStorage.clear();
+    }
+}