I am trying to use Container Managed EntityManager, however I am getting NameNotFoundException. I have tried adding entries in web.xml but in vain.
@Stateless
@Path("/mypath")
public class EmployeeService {
@EJB
private EmployeeDAO employeeDAO;
@GET
@Path("/myresults")
@Produces(MediaType.APPLICATION_JSON)
public Employee getValues() {
Employee emp = new Employee();
try {
emp = employeeDAO.getEmployees(); // exception here
} catch (Exception ex) {
ex.printStackTrace();
}
return emp;
}
EmployeeDAO code snippet
public class EmployeeDAO {
@PersistenceContext(unitName = "test-ejb", name = "persistence/em")
public Employee getEmployees() throws NamingException {
int empNo = 342;
Context context = new InitialContext();
context.lookup("java:comp/env");
EntityManager em = (EntityManager)context.lookup("persistence/em");
return em.find(Employee.class, empNo);
}
persistence.xml
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"
xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="test-ejb" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>jdbc/testDS</jta-data-source>
<class>test.entity.Employees</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="eclipselink.target-server" value="OC4J"/>
<property name="javax.persistence.target-database" value="Oracle"/>
<property name="javax.persistence.logging.parameters" value="TRUE"/>
</properties>
</persistence-unit>
</persistence>
Exception stack
javax.naming.NameNotFoundException: persistence/em not found at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.rmi.RMIServerContext.lookup(RMIServerContext.java:207) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.ApplicationContext.unprivileged_lookup(ApplicationContext.java:256) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.ApplicationContext.lookup(ApplicationContext.java:196) at javax.naming.InitialContext.lookup(InitialContext.java:392) at test.dao.EmployeeDAO.getValues(EmployeeDAO.java:39) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:734) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:391) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:908) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:458) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:226) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:127) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:116) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.5.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303) at java.lang.Thread.run(Thread.java:662)
Update 1
@Stateless
@LocalBean
public class EmployeeDAO {
@PersistenceContext(unitName = "test-ejb", name = "persistence/em")
public Employee getEmployees() throws NamingException {
int empNo = 342;
Context context = new InitialContext();
context.lookup("java:comp/env");
EntityManager em = (EntityManager)context.lookup("persistence/em");
return em.find(Employee.class, empNo);
}
Exception
javax.ejb.EJBException: Setter injection being applied to non-setter method: getValues; nested exception is: java.lang.InstantiationException: Setter injection being applied to non-setter method: getValues
Full stack
Caused by: java.lang.InstantiationException: Setter injection being applied to non-setter method: getValues at com.evermind.server.deployment.J2EEContextAnnotationParser.validateInjectionSetter(J2EEContextAnnotationParser.java:713) at com.evermind.server.deployment.J2EEContextAnnotationParser.createInjectionTarget(J2EEContextAnnotationParser.java:729) at com.evermind.server.deployment.J2EEContextAnnotationParser.parseInjectedMethod(J2EEContextAnnotationParser.java:378) at com.evermind.server.ejb.deployment.BeanDescriptorAnnotationParser.parseInjectedMethodAndCallbacks(BeanDescriptorAnnotationParser.java:276) at com.evermind.server.ejb.deployment.SessionBeanDescriptorAnnotationParser.parseInjectedMethodAndCallbacks(SessionBeanDescriptorAnnotationParser.java:95) at com.evermind.server.ejb.deployment.BeanDescriptorAnnotationParser.parseAnnotations(BeanDescriptorAnnotationParser.java:77) at com.evermind.server.ejb.deployment.BeanDescriptorAnnotationParser.parseAnnotations(BeanDescriptorAnnotationParser.java:48) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.evermind.server.ejb.BeanAnnotationListener.parseAnnotatedClass(BeanAnnotationListener.java:45)
