diff --git a/app/src/main/java/j4ckall/rxflux/lib/flux/Action.java b/app/src/main/java/j4ckall/rxflux/lib/flux/Action.java
new file mode 100644
index 0000000..8d9876e
--- /dev/null
+++ b/app/src/main/java/j4ckall/rxflux/lib/flux/Action.java
@@ -0,0 +1,26 @@
+package j4ckall.rxflux.lib.flux;
+
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+
+/**
+ * ユーザアクション毎の内容を表すクラス
+ * Keyはアクションを識別するためのもの
+ * ユーザアクションの発生毎にImmutableなインスタンスが生成される
+ *
+ * @author matsumoto_k
+ */
+public class Action<T> {
+    public final Key key;
+    public final T value;
+    final boolean notifyStoreChanged;
+
+    public interface Key {
+    }
+
+    Action(@NonNull Key key, @Nullable T t, @NonNull boolean notifyStoreChanged) {
+        this.key = key;
+        this.value = t;
+        this.notifyStoreChanged = notifyStoreChanged;
+    }
+}