Examples.
git-svn-id: https://google-guice.googlecode.com/svn/trunk@247 d779f126-a31b-0410-b53b-1d3aecad763e
diff --git a/guice.ipr b/guice.ipr
index ba9e813..9c5c59f 100644
--- a/guice.ipr
+++ b/guice.ipr
@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
-<project version="4" relativePaths="true">
+<project version="4" relativePaths="false">
<component name="AntConfiguration">
<defaultAnt bundledAnt="true" />
<buildFile url="file://$PROJECT_DIR$/build.xml">
@@ -14,7 +14,7 @@
<settings>
<class-settings class="com.google.devtools.intellig.configcheck.ProjectPathChecker" />
<class-settings class="com.google.devtools.intellig.configcheck.ProjectJdkChecker">
- <setting name="getProjectJdk" value="$PROJECT_DIR$/../../buildtools/java/jdk1.5.0_06" />
+ <setting name="getProjectJdk" value="/Users/crazybob/buildtools/java/jdk1.5.0_06" />
<setting name="getModuleJdks" value="rO0ABXNyABFqYXZhLnV0aWwuSGFzaFNldLpEhZWWuLc0AwAAeHB3DAAAABA/QAAAAAAAAHg=" />
</class-settings>
<class-settings class="com.google.devtools.intellig.configcheck.PythonSdkChecker" />
diff --git a/src/com/google/inject/DefaultImplementation.java b/src/com/google/inject/DefaultImplementation.java
new file mode 100644
index 0000000..7191bf7
--- /dev/null
+++ b/src/com/google/inject/DefaultImplementation.java
@@ -0,0 +1,30 @@
+/**
+ * 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;
+
+/**
+ * A pointer to the default implementation of a type.
+ *
+ * @author crazybob@google.com (Bob Lee)
+ */
+public @interface DefaultImplementation {
+
+ /**
+ * The implementation type.
+ */
+ Class<?> value();
+}
diff --git a/src/com/google/inject/DefaultProvider.java b/src/com/google/inject/DefaultProvider.java
new file mode 100644
index 0000000..7128ed2
--- /dev/null
+++ b/src/com/google/inject/DefaultProvider.java
@@ -0,0 +1,30 @@
+/**
+ * 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;
+
+/**
+ * A pointer to the default provider implementation for a type.
+ *
+ * @author crazybob@google.com (Bob Lee)
+ */
+public @interface DefaultProvider {
+
+ /**
+ * The implementation type.
+ */
+ Class<?> value();
+}
diff --git a/test/com/google/inject/example/ClientServiceWithDependencyInjection.java b/test/com/google/inject/example/ClientServiceWithDependencyInjection.java
new file mode 100644
index 0000000..ada9dd5
--- /dev/null
+++ b/test/com/google/inject/example/ClientServiceWithDependencyInjection.java
@@ -0,0 +1,102 @@
+/**
+ * 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.example;
+
+import static junit.framework.Assert.assertTrue;
+import com.google.inject.example.ClientServiceWithFactories.Service;
+import com.google.inject.example.ClientServiceWithFactories.Factory;
+import com.google.inject.example.ClientServiceWithFactories.ServiceImpl;
+import com.google.inject.example.ClientServiceWithFactories.ServiceFactory;
+import com.google.inject.example.ClientServiceWithFactories.MockService;
+import com.google.inject.example.ClientServiceWithFactories.Client;
+import junit.framework.Assert;
+
+/**
+ * @author crazybob@google.com (Bob Lee)
+ */
+public class ClientServiceWithDependencyInjection {
+
+// 62 lines
+
+public interface Service {
+ void go();
+}
+
+public static class ServiceImpl implements ClientServiceWithDependencyInjection.Service {
+ public void go() {
+ // ...
+ }
+}
+
+public static class ServiceFactory {
+
+ private ServiceFactory() {}
+
+ private static final Service service = new ServiceImpl();
+
+ public static Service getInstance() {
+ return service;
+ }
+}
+
+public static class Client {
+
+ private final Service service;
+
+ public Client(Service service) {
+ this.service = service;
+ }
+
+ public void go() {
+ service.go();
+ }
+}
+
+public static class ClientFactory {
+
+ private ClientFactory() {}
+
+ public static Client getInstance() {
+ Service service = ServiceFactory.getInstance();
+ return new Client(service);
+ }
+}
+
+public void testClient() {
+ MockService mock = new MockService();
+ Client client = new Client(mock);
+ client.go();
+ assertTrue(mock.isGone());
+}
+
+public static class MockService implements Service {
+
+ private boolean gone = false;
+
+ public void go() {
+ gone = true;
+ }
+
+ public boolean isGone() {
+ return gone;
+ }
+}
+
+ public static void main(String[] args) {
+ new ClientServiceWithDependencyInjection().testClient();
+ }
+}
diff --git a/test/com/google/inject/example/ClientServiceWithFactories.java b/test/com/google/inject/example/ClientServiceWithFactories.java
index 55c9ff7..c07fa60 100644
--- a/test/com/google/inject/example/ClientServiceWithFactories.java
+++ b/test/com/google/inject/example/ClientServiceWithFactories.java
@@ -23,6 +23,8 @@
*/
public class ClientServiceWithFactories {
+// 72 lines
+
public interface Service {
void go();
}
@@ -33,45 +35,48 @@
}
}
-public static abstract class ServiceFactory {
+public interface Factory<T> {
+ T get();
+}
- public abstract Service getService();
+public static class ServiceFactory {
- static ServiceFactory instance = new DefaultServiceFactory();
+ private ServiceFactory() {}
- public static ServiceFactory getInstance() {
+ private static Factory<Service> instance = new Factory<Service>() {
+ private final Service service = new ServiceImpl();
+ public Service get() {
+ return service;
+ }
+ };
+
+ public static Factory<Service> getInstance() {
return instance;
}
- public static void setInstance(ServiceFactory serviceFactory) {
+ public static void setInstance(Factory<Service> serviceFactory) {
instance = serviceFactory;
}
}
-public static class DefaultServiceFactory extends ServiceFactory {
- public Service getService() {
- return new ServiceImpl();
- }
-}
+public static class Client {
-static class Client {
-
- final Service service;
-
- Client() {
- this.service = ServiceFactory.getInstance().getService();
- }
-
- void go() {
+ public void go() {
+ Factory<Service> factory = ServiceFactory.getInstance();
+ Service service = factory.get();
service.go();
}
}
public void testClient() {
- ServiceFactory previous = ServiceFactory.getInstance();
+ Factory<Service> previous = ServiceFactory.getInstance();
try {
- MockService mock = new MockService();
- ServiceFactory.setInstance(new SingletonServiceFactory(mock));
+ final MockService mock = new MockService();
+ ServiceFactory.setInstance(new Factory<Service>() {
+ public Service get() {
+ return mock;
+ }
+ });
Client client = new Client();
client.go();
assertTrue(mock.isGone());
@@ -83,7 +88,7 @@
public static class MockService implements Service {
- boolean gone = false;
+ private boolean gone = false;
public void go() {
gone = true;
@@ -94,20 +99,7 @@
}
}
-public static class SingletonServiceFactory extends ServiceFactory {
-
- final Service service;
-
- public SingletonServiceFactory(Service service) {
- this.service = service;
+ public static void main(String[] args) {
+ new ClientServiceWithFactories().testClient();
}
-
- public Service getService() {
- return this.service;
- }
-}
-
-public static void main(String[] args) {
- new ClientServiceWithFactories().testClient();
-}
}
diff --git a/test/com/google/inject/example/ClientServiceWithGuice.java b/test/com/google/inject/example/ClientServiceWithGuice.java
index 061dbbc..d16dd83 100644
--- a/test/com/google/inject/example/ClientServiceWithGuice.java
+++ b/test/com/google/inject/example/ClientServiceWithGuice.java
@@ -1,4 +1,18 @@
-// Copyright 2006 Google Inc. All Rights Reserved.
+/**
+ * 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.example;
@@ -7,6 +21,7 @@
import com.google.inject.Guice;
import com.google.inject.Inject;
import com.google.inject.Injector;
+import com.google.inject.Scopes;
import static junit.framework.Assert.assertTrue;
/**
@@ -14,6 +29,8 @@
*/
public class ClientServiceWithGuice {
+// 48 lines
+
public interface Service {
void go();
}
@@ -24,15 +41,15 @@
}
}
-public static class ServiceModule extends AbstractModule {
+public static class MyModule extends AbstractModule {
protected void configure() {
- bind(Service.class).to(ServiceImpl.class);
+ bind(Service.class).to(ServiceImpl.class).in(Scopes.SINGLETON);
}
}
public static class Client {
- final Service service;
+ private final Service service;
@Inject
public Client(Service service) {
@@ -47,12 +64,13 @@
public void testClient() {
MockService mock = new MockService();
Client client = new Client(mock);
+ client.go();
assertTrue(mock.isGone());
}
public static class MockService implements Service {
- boolean gone = false;
+ private boolean gone = false;
public void go() {
gone = true;
@@ -65,8 +83,7 @@
public static void main(String[] args) throws CreationException {
new ClientServiceWithGuice().testClient();
-
- Injector injector = Guice.createInjector(new ServiceModule());
+ Injector injector = Guice.createInjector(new MyModule());
Client client = injector.getInstance(Client.class);
}
}
diff --git a/test/com/google/inject/example/ClientServiceWithGuiceDefaults.java b/test/com/google/inject/example/ClientServiceWithGuiceDefaults.java
new file mode 100644
index 0000000..b61e1de
--- /dev/null
+++ b/test/com/google/inject/example/ClientServiceWithGuiceDefaults.java
@@ -0,0 +1,86 @@
+/**
+ * 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.example;
+
+import com.google.inject.Inject;
+import com.google.inject.CreationException;
+import com.google.inject.Injector;
+import com.google.inject.Guice;
+import com.google.inject.DefaultImplementation;
+import com.google.inject.Singleton;
+import com.google.inject.example.ClientServiceWithGuice.MyModule;
+import junit.framework.Assert;
+
+/**
+ * @author crazybob@google.com (Bob Lee)
+ */
+public class ClientServiceWithGuiceDefaults {
+
+// 44 lines
+
+@DefaultImplementation(ServiceImpl.class)
+public interface Service {
+ void go();
+}
+
+@Singleton
+public static class ServiceImpl implements ClientServiceWithGuiceDefaults.Service {
+ public void go() {
+ // ...
+ }
+}
+
+public static class Client {
+
+ private final Service service;
+
+ @Inject
+ public Client(Service service) {
+ this.service = service;
+ }
+
+ public void go() {
+ service.go();
+ }
+}
+
+public void testClient() {
+ MockService mock = new MockService();
+ Client client = new Client(mock);
+ client.go();
+ Assert.assertTrue(mock.isGone());
+}
+
+public static class MockService implements Service {
+
+ private boolean gone = false;
+
+ public void go() {
+ gone = true;
+ }
+
+ public boolean isGone() {
+ return gone;
+ }
+}
+
+public static void main(String[] args) throws CreationException {
+ new ClientServiceWithGuiceDefaults().testClient();
+ Injector injector = Guice.createInjector(new MyModule());
+ Client client = injector.getProvider(Client.class).get();
+}
+}
