DAO access issue on managed bean

[Ebe Ibraheem]

Hi there...

I have recently started a steep learning curve with JSF / ICEFaces. Im having issue when trying to access a DAO from my managed bean. Simply put my project has a simple faces-config.xml

 
 <managed-bean>
        <managed-bean-name>collapsibleMB</managed-bean-name>
        <managed-bean-class>za.co.africanpulse.rms.frontend.managedbeans.CollapsiblePanelMB</managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
    </managed-bean>

The above managed bean is a in between class between DAO and view. This managed bean has an instance of the DAO.
The managed bean looks like :

    
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package za.co.africanpulse.rms.frontend.managedbeans;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.annotation.PostConstruct;
import za.co.africanpulse.rms.frontend.dao.MenuHeadersDAO;
import za.co.africanpulse.rms.frontend.domain.MenuHeaders;
import za.co.africanpulse.rms.frontend.modals.CollapsiblePanelHeaders;
import za.co.africanpulse.rms.frontend.modals.CollapsiblePanelItem;
import za.co.africanpulse.rms.frontend.services.CollapsibleService;

/**
 *
 * @author Ebrahim Terzakis <[e-mail]>
 */
public class CollapsiblePanelMB {

 
    private List<CollapsiblePanelItem> cPanelItems = new ArrayList<CollapsiblePanelItem>();;
    private List<CollapsiblePanelHeaders> cPanelHeaders = new ArrayList<CollapsiblePanelHeaders>();

    public CollapsibleService getCollapsibleService() {
        return collapsibleService;
    }

    public void setCollapsibleService(CollapsibleService collapsibleService) {
        this.collapsibleService = collapsibleService;
    }

    @PostConstruct
    public void init(){

        
        MenuHeadersDAO headersDAO = new MenuHeadersDAO();
        Iterator it = headersDAO.getAllMenuHeaders().iterator();
        while(it.hasNext()){
            CollapsiblePanelHeaders cph = new CollapsiblePanelHeaders();
            MenuHeaders m = (MenuHeaders) it.next();
            cph.setExpanded(false);
            cph.setHeaderID(m.getMenuHeaderID());
            cph.setHeaderName(m.getMenuHeaderName());
            cPanelHeaders.add(cph);
        }     
    }

    public CollapsiblePanelMB(){
      
    }

    public List<CollapsiblePanelHeaders> getcPanelHeaders() {
        return cPanelHeaders;
    }

    public void setcPanelHeaders(List<CollapsiblePanelHeaders> cPanelHeaders) {
        this.cPanelHeaders = cPanelHeaders;
    }

    public List<CollapsiblePanelItem> getcPanelItems() {
        return cPanelItems;
    }

    public void setcPanelItems(List<CollapsiblePanelItem> cPanelItems) {
        this.cPanelItems = cPanelItems;
    }
}

The @PostConstruct init() method is just a lump pf logic to test my DAO access really. My understanding is that the PostConstruct is done before the view is rendered. So alas im initializing a List object so that i can pull it in on my view.

My view is :

    
<ice:form xmlns:h="http://java.sun.com/jsf/html"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:ice="http://www.icesoft.com/icefaces/component">

    <link href="/rmsFrontEnd/css/default.css" rel="stylesheet" type="text/css"/>

    <div class="box_container">
        <div id="news">
            <ice:panelSeries id="headerSeries" value="#{collapsibleMB.cPanelHeaders}" var="entry">

                <ice:panelCollapsible style="border: 1px solid #ABC0D4;" expanded="#{entry.expanded}" toggleOnClick="true"  >
                    <f:facet name="header"   >
                        <ice:panelGrid >
                            <ice:outputLabel value="#{entry.headerName}"/>
                        </ice:panelGrid>
                    </f:facet>
                </ice:panelCollapsible>
            </ice:panelSeries>
        </div>
    </div>
</ice:form>

Okey dokey so in the view my intention is to pull the above data that i got from my DAO and contruct a collapsible panel.
When i do this manually by just initializing my List object above "cPanelHeaders" and fill it up with "CollapsiblePanelHeaders"
objects all is fine and the view displays my goodies, but when i use a DAO to get the data to display i get a ClassCastException like so :

Caused by: com.sun.faces.mgbean.ManagedBeanCreationException: An error occurred performing resource injection on managed bean collapsibleMB
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:226)
at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:108)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:368)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:222)
at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:86)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:175)
at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72)
at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:86)
at com.sun.el.parser.AstValue.getValue(AstValue.java:127)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:206)
at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
at javax.faces.component.UIData.getValue(UIData.java:614)
at com.icesoft.faces.component.panelseries.UISeries.getValue(UISeries.java:572)
... 102 more
Caused by: com.sun.faces.spi.InjectionProviderException: com.sun.enterprise.InjectionException: Exception attempting invoke lifecycle method public void za.co.africanpulse.rms.frontend.managedbeans.CollapsiblePanelMB.init()
at com.sun.faces.vendor.GlassFishInjectionProvider.invokePostConstruct(GlassFishInjectionProvider.java:134)
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:220)
... 114 more
Caused by: com.sun.enterprise.InjectionException: Exception attempting invoke lifecycle method public void za.co.africanpulse.rms.frontend.managedbeans.CollapsiblePanelMB.init()
at com.sun.faces.vendor.GlassFishInjectionProvider.invokeLifecycleMethod(GlassFishInjectionProvider.java:298)
at com.sun.faces.vendor.GlassFishInjectionProvider.invokePostConstruct(GlassFishInjectionProvider.java:211)
at com.sun.faces.vendor.GlassFishInjectionProvider.invokePostConstruct(GlassFishInjectionProvider.java:132)
... 115 more
Caused by: java.security.PrivilegedActionException: java.lang.reflect.InvocationTargetException
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.faces.vendor.GlassFishInjectionProvider.invokeLifecycleMethod(GlassFishInjectionProvider.java:281)
... 117 more
Caused by: java.lang.reflect.InvocationTargetException
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.faces.vendor.GlassFishInjectionProvider$1.run(GlassFishInjectionProvider.java:287)
... 119 more
Caused by: java.lang.ClassCastException: za.co.africanpulse.rms.frontend.domain.MenuHeaders cannot be cast to za.co.africanpulse.rms.frontend.domain.MenuHeaders
at za.co.africanpulse.rms.frontend.managedbeans.CollapsiblePanelMB.init(CollapsiblePanelMB.java:48)
... 124 more

Im guessing this is not an icefaces issue but JSF / Managed Bean issue, im doing something wrong when i access my DAO obvisouly, im just to tired to notice...

Ok so thats my story, may anyone take the time to help...
please help...

[Ebe Ibraheem]

Alrighty Ive found that everything works when I restart Glassfish...

but my only issue is that how would remedy an application server that i need to restart everytime i need to deploy my application... hmmm
im of the opinion that it might library issues(could be a bad mix of jars in my app and app server).

May anyone help in giving me a listing of jars required for a below comprised app :

icefaces 1.8.2
facelets
jsf1.2
toplink jpa provider
myfaces
spring security

in the meantime ill try myself...
many thanks

[Ebe Ibraheem]

yey, after much hassle and scenic uphills. servlet version in web.xml has got to be 2.5 or above for annotation injection. and injected entitymanagers require container managed persistence.