Merge branch 'master' into pascal_semi

ceylon · Jan 25, 2011 · 4aca3f5 · 4aca3f5
2 parents b22bba6 + 1ae7e59
commit 4aca3f5
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diff --git a/corpus/annotations/transactions/Transactional.ceylon b/corpus/annotations/transactions/Transactional.ceylon
@@ -0,0 +1,38 @@
+shared annotation {
+    ofElements = methods;
+    occurs = onceEachElement; 
+}
+Transactional transactional(Boolean requiresNew = false) {
+    return Transactional(requiresNew)
+}
+
+shared class Transactional(Boolean requiresNew) 
+        satisfies MethodAnnotation {
+
+    shared Boolean requiresNew = requiresNew;
+
+    doc "This method is called whenever Ceylon loads a class with a method
+         annotated |transactional|. It registers a transaction management
+         interceptor for the method."
+    shared actual void onDefineMethod<X,T,P...>(OpenMethod<X,T,P...> method) {
+        method.intercept() 
+                onInvoke(X instance, T proceed(P... args), P... args) {
+            if (currentTransaction.inProcess || !requiresNew) {
+                return proceed(args)
+            }
+            else {
+                currentTransaction.begin();
+                try {
+                    T result = proceed(args);
+                    currentTransaction.commit();
+                    return result
+                }
+                catch (Exception e) {
+                    currentTransaction.rollback();
+                    throw e
+                }
+            }
+        }
+    }
+
+}
diff --git a/corpus/ui/component/Component.ceylon b/corpus/ui/component/Component.ceylon
@@ -0,0 +1,23 @@
+shared abstract class Component() {
+
+    OpenList<Observer> observers = none;
+
+    shared Observer[] currentObservers {
+    	return observers
+    }
+
+    shared void addObserver(Observer o)() {
+        observers.append(o);
+        void remove() {
+        	observers.remove(o);
+        }
+        return remove
+    }
+
+    shared void fire(Event event) {
+        for (Observer o in observers) {
+            o.observe(event);
+        }
+    }
+
+}