How To Access Seam Components jar of an ear file in Another Ear by using @In annotation
hi to all,
i am trying to access seam components of an ear file in another ear,
i just export the components as jar and add the new seam project by adding that jar files through buildpath and try to inject those components by using @In a null pointer exception raised. Please give me some solution as early as possible.
here is the code of CommonActor.java which added in jar
package org.itoms.common;
import static org.jboss.seam.annotations.Install.APPLICATION;
import org.jboss.seam.Component;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Install;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.intercept.BypassInterceptors;
@Name("CommonActor")
@Scope(ScopeType.CONVERSATION)
@Install(precedence=APPLICATION,value=true)
@BypassInterceptors
public class CommonActor {
public int add(int a,int b)
{
int c=a+b;
return c;
}
public static CommonActor instance()
{
Component component = Component.forName("CommonActor");
if(component != null && !component.getScope().isContextActive())
{
throw new IllegalStateException("No active "+component.getScope().name()+" context");
}
//Attempting to get the instance anyway for backwards compatibility with some potential hack situations.
return (CommonActor) Component.getInstance("CommonActor");
}
}
and i am trying to inject using @In it in a new project as
@Name("bookingAction")
@Stateful
@Scope(ScopeType.SESSION)
public class BookingAction implements BookingInterface {
@PersistenceContext(type = PersistenceContextType.EXTENDED)
private EntityManager em;
@In
private FacesMessages facesMessages;
//@In
//private CommonActor com;
@In
private Events events;
@In(create=true,required=false)
CommonActor com;//=(CommonActor) Component.getInstance("org.itoms.common.CommonActor");//=new CommonActor();
@Factory
public void getBookingList()
{
System.out.println("Page Enter Method.........................................................");
System.out.println("==============================="+com.add(12, 25));
}
}
i am getting
atalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) java.lang.Thread.run(Thread.java:662)
Caused by java.lang.NullPointerException with message: ""
org.domain.rorodesign.session.BookingAction.getBookingList(BookingAction.java:129) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) org.jboss.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:44) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam
