get value of f:selectItems from view in bean - jsf-2

Question

i have a selectedOneMenu i wann like to get the value selected into my java code to do some work with this value so this my xhtml:
<p:selectOneMenu id="tbName" >
<f:selectItem itemLabel="Select Table" itemValue=""/>
<f:selectItems value="#{infoTable.nameTa}" />
</p:selectOneMenu>
and for the java code i have this:
public List<SelectItem> getNameTa() {
List<SelectItem> subcat = new ArrayList<SelectItem>();
try {
ConnectionBase con = new ConnectionBase();
TableInfo tt = new TableInfo();
List<String> rs = tt.getTable(con, "%");
Iterator i = rs.iterator();
while (i.hasNext()) {
subcat.add(new SelectItem(i.next()));
}
} catch (Exception e) {
e.getStackTrace();
}
return subcat;
}
this methode get the List of the name of my table in data base so when i select item i wanna get the value to pu it here :
public List<SelectItem> getFkName2() {
List<SelectItem> subcat = new ArrayList<SelectItem>();
nameT =generatedName(); //from the selecteditem
System.out.println("name of table choice"+nameT);
try {
TableInfo tt = new TableInfo();
List<String> rs = tt.getNameCtable(con, nameT);
Iterator i = rs.iterator();
while (i.hasNext()) {
subcat.add(new SelectItem(i.next()));
}
} catch (Exception ex) {
}
return subcat;
}
to used it to make other selectOneMenu that get the column of the name of table selected. So what should i make it and thx

Answer 1

try to add a getter/setter of String value like this "slectedName" and for the xhtml put this:
<p:selectOneMenu id="cat">
<f:selectItem itemLabel="Select Column" itemValue="" />
<f:selectItems value="#{infoTable.getFkName2()}" />
</p:selectOneMenu>
<p:outputLabel value="Table :" />
<p:selectOneMenu id="tbName" value="#{infoTable.slectedName}" >
<f:selectItem itemLabel="Select Table" itemValue="" />
<f:selectItems value="#{infoTable.nameTa}" />
<p:ajax update="cat"></p:ajax>
</p:selectOneMenu>
I hoppe it will work for you