#12 - Add support for @qualifier annotations (as alternative to @nAmed)

Author: rbygrave

pom.xml

@@ -36,7 +36,7 @@
     <dependency>
       <groupId>io.dinject</groupId>
       <artifactId>dinject-generator</artifactId>
-      <version>0.11</version>
+      <version>0.12-SNAPSHOT</version>
       <scope>test</scope>
     </dependency>
 

src/test/java/org/example/coffee/qualifier/Blue.java

@@ -0,0 +1,11 @@
+package org.example.coffee.qualifier;
+
+import javax.inject.Qualifier;
+import java.lang.annotation.Retention;
+
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+@Qualifier
+@Retention(RUNTIME)
+public @interface Blue {
+}

src/test/java/org/example/coffee/qualifier/BlueStore.java

@@ -0,0 +1,13 @@
+package org.example.coffee.qualifier;
+
+import javax.inject.Singleton;
+
+@Blue
+@Singleton
+public class BlueStore implements SomeStore {
+
+  @Override
+  public String store() {
+    return "blue";
+  }
+}

src/test/java/org/example/coffee/qualifier/GreenStore.java

@@ -0,0 +1,11 @@
+package org.example.coffee.qualifier;
+
+import javax.inject.Singleton;
+
+@Singleton
+public class GreenStore implements SomeStore {
+  @Override
+  public String store() {
+    return "green";
+  }
+}

src/test/java/org/example/coffee/qualifier/SomeStore.java

@@ -0,0 +1,6 @@
+package org.example.coffee.qualifier;
+
+public interface SomeStore {
+
+  String store();
+}

src/test/java/org/example/coffee/qualifier/StoreManagerWithFieldQualifier.java

@@ -0,0 +1,16 @@
+package org.example.coffee.qualifier;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+@Singleton
+public class StoreManagerWithFieldQualifier {
+
+  @Inject
+  @Blue
+  SomeStore store;
+
+  public String store() {
+    return store.store();
+  }
+}

src/test/java/org/example/coffee/qualifier/StoreManagerWithFieldQualifierTest.java

@@ -0,0 +1,20 @@
+package org.example.coffee.qualifier;
+
+import io.dinject.BeanContext;
+import io.dinject.BootContext;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class StoreManagerWithFieldQualifierTest {
+
+  @Test
+  public void test() {
+
+    try (BeanContext context = new BootContext().load()) {
+      StoreManagerWithFieldQualifier manager = context.getBean(StoreManagerWithFieldQualifier.class);
+      String store = manager.store();
+      assertThat(store).isEqualTo("blue");
+    }
+  }
+}

src/test/java/org/example/coffee/qualifier/StoreManagerWithNamed.java

@@ -0,0 +1,18 @@
+package org.example.coffee.qualifier;
+
+import javax.inject.Named;
+import javax.inject.Singleton;
+
+@Singleton
+public class StoreManagerWithNamed {
+
+  private final SomeStore store;
+
+  public StoreManagerWithNamed(@Named("Blue") SomeStore store) {
+    this.store = store;
+  }
+
+  public String store() {
+    return store.store();
+  }
+}

src/test/java/org/example/coffee/qualifier/StoreManagerWithNamedTest.java

@@ -0,0 +1,20 @@
+package org.example.coffee.qualifier;
+
+import io.dinject.BeanContext;
+import io.dinject.BootContext;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class StoreManagerWithNamedTest {
+
+  @Test
+  public void test() {
+
+    try (BeanContext context = new BootContext().load()) {
+      StoreManagerWithNamed manager = context.getBean(StoreManagerWithNamed.class);
+      String store = manager.store();
+      assertThat(store).isEqualTo("blue");
+    }
+  }
+}

src/test/java/org/example/coffee/qualifier/StoreManagerWithQualifier.java

@@ -0,0 +1,17 @@
+package org.example.coffee.qualifier;
+
+import javax.inject.Singleton;
+
+@Singleton
+public class StoreManagerWithQualifier {
+
+  private final SomeStore store;
+
+  public StoreManagerWithQualifier(@Blue SomeStore store) {
+    this.store = store;
+  }
+
+  public String store() {
+    return store.store();
+  }
+}