How to include an object that has a list element?

[lfelipeas]

I have an object called Perfil that has an OneToMany relationship with another object called Nivel.
So, in the Perfil Entity I have a Nivel list.

When I have to include a Perfil, I have to include a new Nivel because some attributes that I've to include, view or edit are in the Nivel table.

So, my question is: How to include a new Perfil using the Nivel list?

I tried something like this, but didn't work out.

<s:decorate id="nmPerfilField" template="layout/edit.xhtml">
                <ui:define name="label">Nome Perfil</ui:define>
                <h:inputText id="nmPerfil"
                       required="true"
                           size="50"
                      maxlength="50"
                          value="#{pmnPerfilHome.instance.nmPerfil}">
                    <a:support event="onblur" reRender="nmPerfilField" bypassUpdates="true" ajaxSingle="true"/>
                </h:inputText>
            </s:decorate>
            
            <s:decorate id="nmNivelField" template="layout/edit.xhtml" rendered="#{pmnPerfilHome.managed}">
                <ui:define name="label">Nome Nível</ui:define>
                <h:inputText id="nmNivel"
                       required="true"
                           size="50"
                      maxlength="50"
                          value="#{pmnPerfilHome.instance.pmnNivels.add(0,nmNivel)}">
                    <a:support event="onblur" reRender="nmNivelField" bypassUpdates="true" ajaxSingle="true"/>
                </h:inputText>
            </s:decorate>

Here goes my Perfil Entity:

......
  private List<PmnNivel> pmnNivels = new ArrayList<PmnNivel>(0);
  ......
  @OneToMany(fetch = FetchType.LAZY, mappedBy = "pmnPerfil")
     public List<PmnNivel> getPmnNivels() {
          return this.pmnNivels;
     }

     public void setPmnNivels(List<PmnNivel> pmnNivels) {
          this.pmnNivels = pmnNivels;
     }

There's a method in the Perfil Home Object:

public List<PmnNivel> getPmnNivels() {
          return getInstance() == null ? null : new ArrayList<PmnNivel>(
                    getInstance().getPmnNivels());
     }

Thanks for your help!