SelectMany checkbox value-binded with HashMap<String,ArrayList>
Hello,
Someone can help me please?
Im trying to create a page with a lot of HtmlSelectManyCheckbox, and i need to value-bind then to the same Object in my BackingBean.
First i attemped to bind all HtmlSelectManyCheckbox with a single ArrayList, but only the last SelectMany had their values inserted on the ArrayList...
So, now im trying to bind all the HtmlSelectManyCheckbox with a HashMap<String,ArrayList>, because i would have just one object and for each entry I would have the checkboxes that were cheked in a single HtmlSelectManyCheckbox.
Now my question: there is a way to make this work?
my code example
Backing bean
private HashMap<String, ArrayList> respostaMatrizCheck =new HashMap<String, ArrayList>();
public HashMap<String, ArrayList> getRespostaMatrizCheck(){
return respostaMatrizCheck;
}
publicvoid setRespostaMatrizCheck(HashMap<String, ArrayList> respostaMatrizCheck){
this.respostaMatrizCheck = respostaMatrizCheck;
and the bindings
<h:selectManyCheckbox value="#{backingBean.respostaMatrizCheck['1'] }">
...
<h:selectManyCheckbox value="#{backingBean.respostaMatrizCheck['2'] }">
And the error message given when i tryed this is the following:
javax.servlet.ServletException: ValueBinding for UISelectMany must be of type List or Array
Any help would be welcome.
Thanks,
Ferry
[1822 byte] By [
Ferrymana] at [2007-11-26 16:19:07]
# 1
This is just a guess, but maybe it would work if you initialize the elements of respostaMatrizCheck that you're going to use, like this:
public class myBean {
private HashMap<String, ArrayList> respostaMatrizCheck;
myBean() {
respostaMatrizCheck = new HashMap<String, ArrayList>();
respostaMatrizCheck.put( "1", new String[0] );
... one for each selectMany
}
...
}
The setRespostaMatrizCheck is not going to be used.
# 4
Hmm didnt work here...
here what ive done:
HtmlSelectManyCheckbox matrizCheck = (HtmlSelectManyCheckbox) app.createComponent(HtmlSelectManyCheckbox.COMPONENT_TYPE);
// Seta o id como sendo QuestaoMatriz_[CodQuestao]_[codLinha]
matrizCheck.setId("QuestaoMatriz_" + questaoMatriz.getCodigo() + "_" + linha.getCodigo());
PesquisaBackingBean pbb = (PesquisaBackingBean) faces.getApplication().getVariableResolver().resolveVariable(faces, "pesquisaBackingBean");
HashMap<String, ArrayList><String>> respostaMatrizCheck = pbb.getRespostaMatrizCheck();
respostaMatrizCheck.put(questaoMatriz.getCodigo() + "_" + linha.getCodigo(), new ArrayList<String>());
but the error continues:
javax.servlet.ServletException: ValueBinding for UISelectMany must be of type List or Array
javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
thanks for the help,
Ferry
# 6
The ['1'] and ['2'] doesn't work with maps, it only works with ordinary arrays (and instead use [0], [1], etc). With maps you can just use the key name as getter.
So instead do<h:selectManyCheckbox value="#{backingBean.respostaMatrizCheck.box1}">
...
<h:selectManyCheckbox value="#{backingBean.respostaMatrizCheck.box2}">
and use map keys starting with an alphabetic character instead of numbers.
Map respostaMatrizCheck = new HashMap();
respostaMatrizCheck.put("box1", List<SelectItem>);
respostaMatrizCheck.put("box2", List<SelectItem>);
