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Question

I have a mapped bean in faces-config.xml

<managed-bean>
  <managed-bean-name>beanName</managed-bean-name>
  <managed-bean-class>java.util.HashMap</managed-bean-class>
  <managed-bean-scope>view</managed-bean-scope>
  <managed-property>
   <property-name>elements</property-name>
   <map-entries>
    <key-class>java.lang.String</key-class>
    <value-class>path.InputFormElementContainer</value-class>
   </map-entries>
  </managed-property>
 </managed-bean>

The implementation in java is:

public class InputFormElementContainer implements List<InputFormElement>, Serializable{


    private static final long serialVersionUID = -4685106549564090233L;
    private List<InputFormElement> elements;

    //Empty Constructor
    public InputFormElementContainer() {
        elements = new ArrayList<InputFormElement>();
    }
    public List<InputFormElement> getElements() {
        return elements;
    }
    public void setElements(List<InputFormElement> elements) {
        this.elements = elements;
    }
}

But I am getting this error when I refresh my application:

com.sun.faces.mgbean.ManagedBeanCreationException: No se puede crear el bean administrado beanName.  Se han encontrado los problemas siguientes:
     - No existe la propiedad elements para el bean administrado beanName.

The translation to english could be: can not create the administrated beanName due to the following problem: elemts property does not exist for beanName.

This problem came to me in the migration to JSF2. I was reading tutorials, but I could't figure out how to make this manage-bean propperly in JSF2. Could anybody help me??
Thanks in advance!

http://www.mkyong.com/jsf2/jsf-2-0-spring-hibernate-integration-example/ this page could be very useful, but it is not include my case in partocular — Blanca Hdez, Apr 06 '11 at 13:06

score 1 · Answer 1 · answered Apr 06 '11 at 13:06

1

It is wrong

<managed-bean-name>beanName</managed-bean-name>
  <managed-bean-class>java.util.HashMap</managed-bean-class>
  <managed-bean-scope>view</managed-bean-scope>
  <managed-property>
   <property-name>elements</property-name>

here jsf will search for getters/setters of the field elements in java.util.HashMap which doesn't exist, and so the error

answered Apr 06 '11 at 13:06

jmj

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But in the way that is mapped, I want to specify that beanName is a hashMap. Am I doing it wrong?? – Blanca Hdez Apr 06 '11 at 13:12
I don't want to specify elements as a HashMap, but I need beanName to be hashMap. How could I write the elements type to be not a HashMap?? Is it different way now in JSF2 than it was before?? In JSF1 this same code was working – Blanca Hdez Apr 06 '11 at 13:18
I mean, how could I declare elements as List (as in backend) – Blanca Hdez Apr 06 '11 at 13:32
still its unclear to me *but I need beanName to be hashMap.* – jmj Apr 06 '11 at 13:35
beanName -> hashMap elements -> List, which is a field inside InputFormElementContainer. How could I manage this in faces-config?? Thansk, and sorry for me english – Blanca Hdez Apr 06 '11 at 13:45

score 0 · Answer 2 · answered Nov 20 '12 at 23:34

You have two options depending of how you want to model your class InputFormElementContainer

If you need 'elements' to be a List:

<managed-bean>
  <managed-bean-name>beanName</managed-bean-name>
  <managed-bean-class>java.util.HashMap</managed-bean-class>
  <managed-bean-scope>view</managed-bean-scope>
  <managed-property>
    <property-name>elements</property-name>
    <property-class>java.util.ArrayList</property-class>
    <list-entries>
      <value-class>path.InputFormElementContainer</value-class>
      <value>...</value
      ...
    </list-entries>
  </managed-property>
</managed-bean>

Or if you need 'elements' property to be a Map:

<managed-bean>
      <managed-bean-name>beanName</managed-bean-name>
      <managed-bean-class>java.util.HashMap</managed-bean-class>
      <managed-bean-scope>view</managed-bean-scope>
      <managed-property>
        <property-name>elements</property-name>
        <property-class>java.util.HashMap</property-class>
        <map-entries>
          <key-class>java.lang.String</key-class>
          <value-class>path.InputFormElementContainer</value-class>
          <map-entry>
            <key></key>
            <value></value>
          </map-entry>
        </map-entries>
      </managed-property>
    </managed-bean>

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2 Answers2