Acho que você precisa de um conversor....
Aqui:
package converter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.component.UISelectItem;
import javax.faces.component.UISelectItems;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;
import javax.faces.model.SelectItem;
import javax.faces.model.SelectItemGroup;
@FacesConverter("converter.SimpleIndexConverter")
public class SimpleIndexConverter implements Converter {
private int index = -1;
/*
* (non-Javadoc)
*
* @see
* javax.faces.convert.Converter#getAsObject(javax.faces.context.FacesContext
* , javax.faces.component.UIComponent, java.lang.String)
*/
public Object getAsObject(FacesContext ctx, UIComponent component,
String value) {
SelectItem selectedItem = this.getSelectedItemByIndex(component,
Integer.parseInt(value));
if (selectedItem != null)
return selectedItem.getValue();
return null;
}
/*
* (non-Javadoc)
*
* @see
* javax.faces.convert.Converter#getAsString(javax.faces.context.FacesContext
* , javax.faces.component.UIComponent, java.lang.Object)
*/
public String getAsString(FacesContext ctx, UIComponent component,
Object value) {
index++;
// changed here
if(value==null) return "";
else return String.valueOf(index);
}
/**
* Obtem o SelecItem de acordo com a opção selecionada pelo usuário
*/
protected SelectItem getSelectedItemByIndex(UIComponent component, int index) {
List<SelectItem> items = this.getSelectItems(component);
int size = items.size();
if (index > -1 && size > index) {
return items.get(index);
}
return null;
}
protected List<SelectItem> getSelectItems(UIComponent component) {
List<SelectItem> items = new ArrayList<SelectItem>();
int childCount = component.getChildCount();
if (childCount == 0)
return items;
List<UIComponent> children = component.getChildren();
for (UIComponent child : children) {
if (child instanceof UISelectItem) {
this.addSelectItem((UISelectItem) child, items);
} else if (child instanceof UISelectItems) {
this.addSelectItems((UISelectItems) child, items);
}
}
return items;
}
protected void addSelectItem(UISelectItem uiItem, List<SelectItem> items) {
boolean isRendered = uiItem.isRendered();
if (!isRendered) {
items.add(null);
return;
}
Object value = uiItem.getValue();
SelectItem item;
if (value instanceof SelectItem) {
item = (SelectItem) value;
} else {
Object itemValue = uiItem.getItemValue();
String itemLabel = uiItem.getItemLabel();
// JSF throws a null pointer exception for null values and labels,
// which is a serious problem at design-time.
item = new SelectItem(itemValue == null ? "" : itemValue,
itemLabel == null ? "" : itemLabel,
uiItem.getItemDescription(), uiItem.isItemDisabled());
}
items.add(item);
}
@SuppressWarnings("unchecked")
protected void addSelectItems(UISelectItems uiItems, List<SelectItem> items) {
boolean isRendered = uiItems.isRendered();
if (!isRendered) {
items.add(null);
return;
}
Object value = uiItems.getValue();
if (value instanceof SelectItem) {
items.add((SelectItem) value);
} else if (value instanceof Object[]) {
Object[] array = (Object[]) value;
for (int i = 0; i < array.length; i++) {
// TODO test - this section is untested
if (array[i] instanceof SelectItemGroup) {
resolveAndAddItems((SelectItemGroup) array[i], items);
} else {
items.add((SelectItem) array[i]);
}
}
} else if (value instanceof Collection) {
Iterator<SelectItem> iter = ((Collection<SelectItem>) value)
.iterator();
SelectItem item;
while (iter.hasNext()) {
item = iter.next();
if (item instanceof SelectItemGroup) {
resolveAndAddItems((SelectItemGroup) item, items);
} else {
items.add(item);
}
}
} else if (value instanceof Map) {
for (Map.Entry<Object, Object> entry : ((Map<Object, Object>) value)
.entrySet()) {
Object label = entry.getKey();
SelectItem item = new SelectItem(entry.getValue(),
label == null ? (String) null : label.toString());
// TODO test - this section is untested
if (item instanceof SelectItemGroup) {
resolveAndAddItems((SelectItemGroup) item, items);
} else {
items.add(item);
}
}
}
}
protected void resolveAndAddItems(SelectItemGroup group,
List<SelectItem> items) {
for (SelectItem item : group.getSelectItems()) {
if (item instanceof SelectItemGroup) {
resolveAndAddItems((SelectItemGroup) item, items);
} else {
items.add(item);
}
}
}
}
Agora usa ele dessa forma:
<h:selectOneMenu id="lMunOri" value="#{criarBean.produtor.origem}">
<f:converter converterId="converter.SimpleIndexConverter"/> <f:selectItem itemLabel="#{msgs.Smunicipio}"/>
<f:selectItems value="#{criarBean.lMunicipiosOrigem}" />
</h:selectOneMenu>
converter é o pacote que o Conversor está. Bem acho que é isso...isso acontece pq você tem uma classe Java que não é String não é mesmo?
T+,
Filipe.