SelectManyCheckboxMultiGroupsBean.java

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package com.sun.faces.test.servlet30.facelets;

import java.util.Arrays;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.model.SelectItem;
import javax.faces.model.SelectItemGroup;

@ManagedBean(name = "selectManyCheckboxMultiGroupsBean")
@ViewScoped
public class SelectManyCheckboxMultiGroupsBean {

    private List<SelectItem> cars;

    private List<String> selected;

    @PostConstruct
    public void init() {
        SelectItemGroup g1 = new SelectItemGroup("German Cars");
        g1.setSelectItems(new SelectItem[]{new SelectItem("BMW", "BMW"), new SelectItem("Mercedes", "Mercedes"), new SelectItem("Volkswagen", "Volkswagen")});

        SelectItemGroup g2 = new SelectItemGroup("American Cars");
        g2.setSelectItems(new SelectItem[]{new SelectItem("Chrysler", "Chrysler"), new SelectItem("GM", "GM"), new SelectItem("Ford", "Ford")});

        cars = Arrays.<SelectItem>asList(g1, g2);
    }

    public List<SelectItem> getCars() {
        return cars;
    }

    public List<String> getSelected() {
        return selected;
    }

    public void setSelected(List<String> selected) {
        this.selected = selected;
    }
}