CODEWITHSUNDEEP
javajsfjsf-2faces-config
Blanca Hdez
Blanca Hdez

Reputation: 3563

jsf2 + <managed-property> <property-name>

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!

Upvotes: 0

Views: 4423

Answers (2)

Ghasfarost
Ghasfarost

Reputation: 782

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>

Upvotes: 0

Jigar Joshi
Jigar Joshi

Reputation: 240860

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

Upvotes: 1

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