Selecting a SelectOneMenu populated with enum only after second click - primefaces

Question

I'm trying to use enums to populate a PrimeFaces selectOneMenu, but could not get the selected value. After the first click, the value assigned is always the one in the post-constructor.
HTML:
<p:selectOneMenu id="periodo"
value="#{dashboardMB.enumDate}">
<f:selectItems value="#{dashboardMB.enumDates}"
var="enumDate"
itemValue="#{enumDate}"
itemLabel="#{enumDate.label}" />
</p:selectOneMenu>
Backing bean:
private EnumDate enumDate;
#PostConstruct
public void init() {
enumDate = EnumDate.YEAR;
}
EnumDate:
public enum EnumData {
EMPTY("- Select -"), DAY("Day"), WEEK("Week"), FORTNIGHT("Fortnight"), MONTH("Month"), BIMESTER("Bimester"), TRIMESTER("Trimester"), SEMESTER("Semester"), YEAR("Year");
public String label;
public static final EnumSet<EnumDate> all = EnumSet.of(EMPTY, DAY, WEEK, FORTNIGHT, MONTH, BIMESTER, TRIMESTER, SEMESTER, YEAR);
private EnumDate(String label) {
this.label = label;
}
public String getLabel() {
return label;
}
}
Thus, it has always the value "Year". Until the button which sends the form is clicked again.
Solved using OmniFaces converter:
<p:selectOneMenu id="period"
converter="omnifaces.SelectItemsConverter"
style="width: 237px !important"
value="#{dashboardMB.enumDate}"
filter="true"
filterMatchMode="contains"
panelStyleClass="oneMenuPanel"
styleClass="oneMenu">
<f:selectItems value="#{dashboardMB.enumDateArray}"
var="enum"
itemValue="#{enum}"
itemLabel="#{enum.label}" />
</p:selectOneMenu>
The enumDateArray attribute is of EnumDate[] type. Its getter returns EnumDate.values().

Answer 1

Better to use the omnifaces generic enum converter. It keeps your code cleaner compared to 'manually' doing conversions of lists etc...

Answer 2

Convert enums into Strings
EnumData[] eds = EnumData.values();
String EDtoString = eds[0].name();
You can pass function String[] EnumDatasToString() to XHTML.
To convert from String to Enum use
EnumData ed = EnumData.valueOf(EDToString);