Meu código na view:
<h:selectOneMenu id="cidade"
value="#{clienteController.cliente.cidade}"
converter="SimpleIndexConverter">
<f:selectItems
value="#{clienteController.cidades}" var="cid" itemValue="#{cid}"
itemLabel="#{cid.cidade}" />
</h:selectOneMenu>
ta mostrando as cidades bonitinho, já na hora de salvar simplesmente
não da nada, nao faz nada.
to usando um SimpleIndexConverter já q a dica era que ele funcionasse
com boa parte das entidades (
http://www.rponte.com.br/tag/
selectonemenu/) e minha entidade é simples demais, no entanto não da
erro nenhum e não faz alteração nenhuma.
o código do SimpleIndexConverter ficou assim:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package beans;
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(value = "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)
*/
@Override
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)
*/
@Override
public String getAsString(FacesContext ctx, UIComponent
component, Object value) {
index++;
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);
}
}
}
}
alguma dica pessoal ??