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arun-guptaarun-gupta
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Merge pull request #305 from rhanus/master
added cdi/instance
2 parents 5dc6143 + 70bf0f8 commit 0b69631

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‎cdi/instance-qualifiers/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<artifactId>cdi</artifactId>
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<groupId>org.javaee7</groupId>
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<version>1.0-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>cdi-instance-qualifiers</artifactId>
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<name>Java EE 7 Sample: cdi/instance-qualifiers</name>
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</project>

‎cdi/instance-qualifiers/src/main/java/org/javaee7/cdi/instance/Business.java

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package org.javaee7.cdi.instance;
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import javax.inject.Qualifier;
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import java.lang.annotation.Retention;
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import java.lang.annotation.Target;
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import static java.lang.annotation.ElementType.*;
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import static java.lang.annotation.RetentionPolicy.RUNTIME;
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/**
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* @author Radim Hanus
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*/
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@Qualifier
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@Retention(RUNTIME)
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@Target({TYPE, METHOD, FIELD, PARAMETER})
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public @interface Business {
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}

‎cdi/instance-qualifiers/src/main/java/org/javaee7/cdi/instance/FormalGreeting.java

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package org.javaee7.cdi.instance;
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/**
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* @author Radim Hanus
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*/
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@Business
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public class FormalGreeting implements Greeting {
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@Override
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public String greet(String name) {
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return "Good morning " + name;
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}
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}

‎cdi/instance-qualifiers/src/main/java/org/javaee7/cdi/instance/Greeting.java

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package org.javaee7.cdi.instance;
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/**
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* @author Arun Gupta
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* @author Radim Hanus
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*/
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public interface Greeting {
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String greet(String name);
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}

‎cdi/instance-qualifiers/src/main/java/org/javaee7/cdi/instance/Personal.java

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package org.javaee7.cdi.instance;
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import javax.inject.Qualifier;
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import java.lang.annotation.Retention;
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import java.lang.annotation.Target;
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import static java.lang.annotation.ElementType.*;
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import static java.lang.annotation.RetentionPolicy.RUNTIME;
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/**
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* @author Radim Hanus
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*/
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@Qualifier
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@Retention(RUNTIME)
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@Target({TYPE, METHOD, FIELD, PARAMETER})
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public @interface Personal {
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}

‎cdi/instance-qualifiers/src/main/java/org/javaee7/cdi/instance/SimpleGreeting.java

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package org.javaee7.cdi.instance;
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/**
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* @author Arun Gupta
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* @author Radim Hanus
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*/
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public class SimpleGreeting implements Greeting {
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@Override
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public String greet(String name) {
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return "Hello " + name;
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}
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}

‎cdi/instance-qualifiers/src/test/java/org/javaee7/cdi/instance/GreetingTest.java

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package org.javaee7.cdi.instance;
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import org.jboss.arquillian.container.test.api.Deployment;
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import org.jboss.arquillian.junit.Arquillian;
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import org.jboss.shrinkwrap.api.Archive;
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import org.jboss.shrinkwrap.api.ShrinkWrap;
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import org.jboss.shrinkwrap.api.spec.JavaArchive;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import javax.enterprise.inject.Any;
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import javax.enterprise.inject.Default;
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import javax.enterprise.inject.Instance;
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import javax.enterprise.util.AnnotationLiteral;
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import javax.inject.Inject;
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import static org.hamcrest.CoreMatchers.instanceOf;
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import static org.junit.Assert.*;
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/**
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* @author Radim Hanus
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*/
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@RunWith(Arquillian.class)
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public class GreetingTest {
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@Deployment
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public static Archive<?> deploy() {
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return ShrinkWrap.create(JavaArchive.class)
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.addClasses(Greeting.class, SimpleGreeting.class, FormalGreeting.class, Business.class, Personal.class)
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.addAsManifestResource("beans.xml");
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}
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/**
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* Container will assume built-in @Default qualifier here as well as for beans that don't declare a qualifier.
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*/
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@Inject
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private Instance<Greeting> defaultInstance;
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/**
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* Qualifier @Personal is not qualifying any bean.
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*/
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@Inject @Personal
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private Instance<Greeting> personalInstance;
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/**
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* Built-in qualifier @Any is assumed on each bean regardless other qualifiers specified.
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*/
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@Inject @Any
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private Instance<Greeting> anyInstance;
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@Test
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public void test() throws Exception {
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// only SimpleGreeting instance should be available
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assertFalse(defaultInstance.isUnsatisfied());
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assertFalse(defaultInstance.isAmbiguous());
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assertThat(defaultInstance.get(), instanceOf(SimpleGreeting.class));
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assertThat(defaultInstance.select(new AnnotationLiteral<Default>() {}).get(), instanceOf(SimpleGreeting.class));
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// no instance should be available
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assertTrue(personalInstance.isUnsatisfied());
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// both Greeting instances should be available
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assertFalse(anyInstance.isUnsatisfied());
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assertTrue(anyInstance.isAmbiguous());
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assertThat(anyInstance.select(new AnnotationLiteral<Business>() {}).get(), instanceOf(FormalGreeting.class));
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assertThat(anyInstance.select(new AnnotationLiteral<Default>() {}).get(), instanceOf(SimpleGreeting.class));
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}
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}
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‎cdi/instance-qualifiers/src/test/resources/beans.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
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bean-discovery-mode="all">
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</beans>

‎cdi/instance/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<artifactId>cdi</artifactId>
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<groupId>org.javaee7</groupId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<artifactId>cdi-instance</artifactId>
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<name>Java EE 7 Sample: cdi/instance</name>
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</project>

‎cdi/instance/src/main/java/org/javaee7/cdi/instance/FancyGreeting.java

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package org.javaee7.cdi.instance;
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/**
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* @author Arun Gupta
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* @author Radim Hanus
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*/
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public class FancyGreeting implements Greeting {
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@Override
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public String greet(String name) {
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return "Nice to meet you, hello" + name;
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}
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}

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