Using @ManagedProperty to call method between Managed beans

Question

I have two jsf controllers say ControllerA and ControllerB. Both are in Session scope.I want to call create method in ControllerB from ControllerA. I used @ManagedProperty to do.But it does not seem to work

@ManagedBean(name = "manageAccountController")
@SessionScoped
public class ControllerA implements Serializable{

    public void accountSetup()
    {
        @ManagedProperty(value="#{controllerB}")
        private ControllerB details;
        System.out.print("Inside  controller ");
        details.create();

    }

}

    public String prepareCreate() {
          System.out.print("Inside prepare create ");
        current = new ControllerB();
        selectedItemIndex = -1;
        return "Create";
    }

    public String create() {
        try {
            System.out.print("Inside create ");
            getJpaController().create(current);
            JsfUtil.addSuccessMessage(ResourceBundle.getBundle("/Bundle").getString("Created"));
            return prepareCreate();
        } catch (Exception e) {
            JsfUtil.addErrorMessage(e, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));
            return null;
        }
    }

I am not able to call the methods in controllerB.The console shows following error

    SEVERE: JSF will be unable to create managed bean controllerA  when it is requested.  The following problems where found:
     - Property detailsXX for managed bean controllerA does not exist.  Check that appropriate getter and/or setter methods exist.
     - Property detailsXXX for managed bean controllerA does not exist.  Check that appropriate getter and/or setter methods exist.
WARNING: Unable to create managed bean controllerA.  The following problems were found:
     - Property detailsXX for managed bean controllerA does not exist.  Check that appropriate getter and/or setter methods exist.
     - Property detailsXXX for managed bean controllerA does not exist.  Check that appropriate getter and/or setter methods exist.
com.sun.faces.mgbean.ManagedBeanCreationException: Unable to create managed bean controllerA.  The following problems were found:
     - Property detailsXX for managed bean controllerA does not exist.  Check that appropriate getter and/or setter methods exist.
     - Property detailsXXX for managed bean controllerA does not exist.  Check that appropriate getter and/or setter methods exist.
    at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:265)
    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
    at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:116)
    at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
    at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
    at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:99)
    at com.sun.el.parser.AstValue.getTarget(AstValue.java:127)
    at com.sun.el.parser.AstValue.invoke(AstValue.java:217)
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
    at javax.faces.component.UICommand.broadcast(UICommand.java:315)
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:619)

Kindly point out my mistake... Thanks

Answer 1

The answer is already in the exception message:

Property detailsXX for managed bean controllerA does not exist. Check that appropriate getter and/or setter methods exist.

You need to supply a getter and setter for the property.

@ManagedBean("manageAccountController")
@SessionScoped
public class ControllerA implements Serializable{

    @ManagedProperty("#{controllerB}")
    private ControllerB details;

    public ControllerB getDetails() {
        return details;
    }

    public void setDetails(ControllerB details) {
        this.details = details;
    }

}

Also please note that I moved the managed property declaration from the accountSetup() method back into the class. This would however not have resulted in the exception you got, but in a simple compilation error. In the future, please be careful in preparing the code in the question to avoid red herrings.

Answer 2

try placing the

@ManagedProperty(value="#{controllerB}")
private ControllerB details;

in the class ControllerA itself and not inside the method accountSetup , and add getter/setter for it...