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Aggiunto l'esempio capitolo su Enterprise JavaBean

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Fabio Scotto di Santolo
2019-03-29 16:02:49 +01:00
parent 9ae35dc078
commit 09af0ccdfb
11 changed files with 373 additions and 0 deletions
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42
ejbdemo/ejbdemo.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
<component name="FacetManager">
<facet type="jpa" name="JPA">
<configuration>
<setting name="validation-enabled" value="true" />
<datasource-mapping />
<naming-strategy-map />
<deploymentDescriptor name="persistence.xml" url="file://$MODULE_DIR$/src/main/resources/META-INF/persistence.xml" />
</configuration>
</facet>
</component>
<component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7">
<output url="file://$MODULE_DIR$/target/classes" />
<output-test url="file://$MODULE_DIR$/target/test-classes" />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
<sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
<excludeFolder url="file://$MODULE_DIR$/target" />
</content>
<orderEntry type="jdk" jdkName="1.8" jdkType="JavaSDK" />
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="library" name="Maven: org.eclipse.persistence:org.eclipse.persistence.jpa:2.5.0" level="project" />
<orderEntry type="library" name="Maven: org.eclipse.persistence:javax.persistence:2.1.0" level="project" />
<orderEntry type="library" name="Maven: org.eclipse.persistence:org.eclipse.persistence.asm:2.5.0" level="project" />
<orderEntry type="library" name="Maven: org.eclipse.persistence:org.eclipse.persistence.antlr:2.5.0" level="project" />
<orderEntry type="library" name="Maven: org.eclipse.persistence:org.eclipse.persistence.jpa.jpql:2.5.0" level="project" />
<orderEntry type="library" name="Maven: org.eclipse.persistence:org.eclipse.persistence.core:2.5.0" level="project" />
<orderEntry type="library" name="Maven: org.hibernate.validator:hibernate-validator:6.0.16.Final" level="project" />
<orderEntry type="library" name="Maven: javax.validation:validation-api:2.0.1.Final" level="project" />
<orderEntry type="library" name="Maven: org.jboss.logging:jboss-logging:3.3.2.Final" level="project" />
<orderEntry type="library" name="Maven: com.fasterxml:classmate:1.3.4" level="project" />
<orderEntry type="library" name="Maven: org.glassfish:javax.el:3.0.1-b09" level="project" />
<orderEntry type="library" name="Maven: org.apache.derby:derbyclient:10.9.1.0" level="project" />
<orderEntry type="library" scope="TEST" name="Maven: org.apache.derby:derby:10.9.1.0" level="project" />
<orderEntry type="library" scope="PROVIDED" name="Maven: org.projectlombok:lombok:1.18.6" level="project" />
<orderEntry type="library" scope="PROVIDED" name="Maven: org.glassfish.main.extras:glassfish-embedded-all:4.0" level="project" />
<orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.12" level="project" />
<orderEntry type="library" scope="TEST" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
</component>
</module>

88
ejbdemo/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>ejbdemo</artifactId>
<name>ejbdemo</name>
<parent>
<artifactId>jeedemo</artifactId>
<groupId>it.plague.jeedemo</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>org.eclipse.persistence.jpa</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.el</artifactId>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.glassfish.main.extras</groupId>
<artifactId>glassfish-embedded-all</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.12.4</version>
<executions>
<execution>
<id>integration-test</id>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

35
ejbdemo/src/main/java/it/plague/jeedemo/Book.java Normal file
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package it.plague.jeedemo;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.NamedQuery;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
@Entity
@Data
@NoArgsConstructor
@Builder
@NamedQuery(name = "Book.findAll", query = "select b from Book b")
public class Book implements Serializable {
@Id
@GeneratedValue
private Long id;
@NotNull
@Column(nullable = false)
private String title;
private Float price;
@Size(max = 2000)
@Column(length = 2000)
private String description;
private String isbn;
private Integer nbOfPage;
private Boolean illustrations;
}

39
ejbdemo/src/main/java/it/plague/jeedemo/BookEJB.java Normal file
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package it.plague.jeedemo;
import java.util.List;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.TypedQuery;
import javax.validation.constraints.NotNull;
@Stateless
@LocalBean
public class BookEJB implements BookEJBRemote {
@Inject
private EntityManager em;
@Override
public List<Book> findBooks() {
TypedQuery<Book> query = em.createNamedQuery("Book.findAll", Book.class);
return query.getResultList();
}
@Override
public @NotNull Book createBook(@NotNull Book book) {
em.persist(book);
return book;
}
@Override
public @NotNull Book updateBook(@NotNull Book book) {
return em.merge(book);
}
@Override
public void deleteBook(@NotNull Book book) {
em.remove(em.merge(book));
}
}

16
ejbdemo/src/main/java/it/plague/jeedemo/BookEJBRemote.java Normal file
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package it.plague.jeedemo;
import java.util.List;
import javax.ejb.Remote;
@Remote
public interface BookEJBRemote {
List<Book> findBooks();
Book createBook(Book book);
void deleteBook(Book book);
Book updateBook(Book book);
}

56
ejbdemo/src/main/java/it/plague/jeedemo/DatabasePopulator.java Normal file
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package it.plague.jeedemo;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.annotation.sql.DataSourceDefinition;
import javax.ejb.Singleton;
import javax.ejb.Startup;
import javax.inject.Inject;
@Startup
@Singleton
@DataSourceDefinition(
className = "org.apache.derby.jdbc.EmbeddedDataSource",
name = "java:global/jdbc/ejbdemoDS",
user = "app",
password = "app",
databaseName = "ejbdemo",
properties = {"connectionAttributes=;create=true"})
public class DatabasePopulator {
@Inject
private BookEJB bookEJB;
private Book h2g2;
private Book lord;
@PostConstruct
private void populateDB() {
h2g2 = Book.builder()
.title("Beginning Java EE 7")
.price(35f)
.description("Great book")
.isbn("1-8763-9125-7")
.nbOfPage(605)
.illustrations(true)
.build();
lord = Book.builder()
.title("The Lord of the Rings")
.price(50.4f)
.description("SciFi")
.isbn("1-84023-742-2")
.nbOfPage(1216)
.illustrations(true)
.build();
bookEJB.createBook(h2g2);
bookEJB.createBook(lord);
}
@PreDestroy
private void clearDB() {
bookEJB.deleteBook(h2g2);
bookEJB.deleteBook(lord);
}
}

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ejbdemo/src/main/java/it/plague/jeedemo/DatabaseProducer.java Normal file
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package it.plague.jeedemo;
import javax.enterprise.inject.Produces;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
public class DatabaseProducer {
@Produces
@PersistenceContext(unitName = "ejbdemoPU")
private EntityManager em;
}

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

16
ejbdemo/src/main/resources/META-INF/persistence.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1"
xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="ejbdemoPU" transaction-type="JTA">
<jta-data-source>java:global/jdbc/ejbdemoDS</jta-data-source>
<properties>
<property name="eclipselink.target-database" value="DERBY"/>
<property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>
<property name="eclipselink.logging.level" value="ALL"/>
</properties>
</persistence-unit>
</persistence>

54
ejbdemo/src/test/java/it/plague/jeedemo/BookEJBIT.java Normal file
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package it.plague.jeedemo;
import static org.junit.Assert.*;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import javax.ejb.embeddable.EJBContainer;
import javax.naming.Context;
import org.junit.Test;
public class BookEJBIT {
@Test
public void shouldCreateABook() throws Exception {
Map<String, Object> properties = new HashMap<>();
properties.put(EJBContainer.MODULES, new File("target/classes"));
try (EJBContainer ec = EJBContainer.createEJBContainer(properties)) {
Context ctx = ec.getContext();
// Check JNDI dependencies (Datasource and EJBs)
assertNotNull(ctx.lookup("java:global/jdbc/ejbdemoDS"));
assertNotNull(ctx.lookup("java:global/classes/BookEJB!it.plague.jeedemo.BookEJBRemote"));
assertNotNull(ctx.lookup("java:global/classes/BookEJB!it.plague.jeedemo.BookEJB"));
// Looks up the EJB
BookEJB bookEJB = (BookEJB) ctx.lookup("java:global/classes/BookEJB!it.plague.jeedemo.BookEJB");
// Find all the books and makes sure there are two (inserted by the DBPopulator)
assertEquals(2, bookEJB.findBooks().size());
// Creates an instance of book;
Book book = Book.builder()
.title("H2G2")
.price(12.5f)
.description("Scifi book")
.isbn("1-24561-799-0")
.nbOfPage(354)
.illustrations(false)
.build();
book = bookEJB.createBook(book);
assertNotNull("ID should not be null", book.getId());
// Find all the books and makes sure is an extra one
assertEquals(3, bookEJB.findBooks().size());
// Removes the created book
bookEJB.deleteBook(book);
// Finds all the books and makes sure there is one less
assertEquals(2, bookEJB.findBooks().size());
}
}
}

7
pom.xml
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<module>cdidemo</module> <module>cdidemo</module>
<module>beanvalidationdemo</module> <module>beanvalidationdemo</module>
<module>jpademo</module> <module>jpademo</module>
<module>ejbdemo</module>
</modules> </modules>
<dependencyManagement> <dependencyManagement>
@@ -47,6 +48,12 @@
<artifactId>derbyclient</artifactId> <artifactId>derbyclient</artifactId>
<version>10.9.1.0</version> <version>10.9.1.0</version>
</dependency> </dependency>
<dependency>
<groupId>org.glassfish.main.extras</groupId>
<artifactId>glassfish-embedded-all</artifactId>
<version>4.0</version>
<scope>provided</scope>
</dependency>
<dependency> <dependency>
<groupId>org.apache.derby</groupId> <groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId> <artifactId>derby</artifactId>