Added support for @DefaultImplementation and @DefaulProvider.
git-svn-id: https://google-guice.googlecode.com/svn/trunk@251 d779f126-a31b-0410-b53b-1d3aecad763e
diff --git a/src/com/google/inject/BoundProviderFactory.java b/src/com/google/inject/BoundProviderFactory.java
new file mode 100644
index 0000000..aa89f98
--- /dev/null
+++ b/src/com/google/inject/BoundProviderFactory.java
@@ -0,0 +1,62 @@
+/**
+ * Copyright (C) 2006 Google Inc.
+ *
+ * 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.google.inject;
+
+import com.google.inject.BinderImpl.CreationListener;
+
+/**
+ * Delegates to a custom factory which is also bound in the injector.
+ */
+class BoundProviderFactory<T>
+ implements InternalFactory<T>, CreationListener {
+
+ final Key<? extends Provider<? extends T>> providerKey;
+ final Object source;
+ private InternalFactory<? extends Provider<? extends T>> providerFactory;
+
+ BoundProviderFactory(
+ Key<? extends Provider<? extends T>> providerKey,
+ Object source) {
+ this.providerKey = providerKey;
+ this.source = source;
+ }
+
+ BoundProviderFactory(
+ Key<? extends Provider<? extends T>> providerKey,
+ InternalFactory<? extends Provider<? extends T>> providerFactory,
+ Object source) {
+ this.providerKey = providerKey;
+ this.providerFactory = providerFactory;
+ this.source = source;
+ }
+
+ public void notify(final InjectorImpl injector) {
+ injector.withDefaultSource(source, new Runnable() {
+ public void run() {
+ providerFactory = injector.getInternalFactory(null, providerKey);
+ }
+ });
+ }
+
+ public String toString() {
+ return providerKey.toString();
+ }
+
+ public T get(InternalContext context) {
+ return providerFactory.get(context).get();
+ }
+}