Untitled

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:p="http://primefaces.org/ui">
<h:head>
    <title>Sistema de Integração Moriah</title>
    <style type="text/css">
#painel {
    font-family: geneva, arial, helvetica, sans-serif;
    font-size: 100%;
    margin-top: 220px;
    margin-left: 300px;
    margin-right: 300px;
    text-align: center;
}

#form {
    padding-left: 60px;
}

</style>
</h:head>
<body>
    <ui:decorate template="menubardecorate.xhtml"></ui:decorate>
    <p:panel header="Selecione como deseja as Ordens de Serviço" id="painel">
        <h:form id="form">
            <h:panelGrid columns="5">
                <p:outputLabel value="Datas da OS:" />
                <p:outputLabel for="de" value="De:" />
                <p:calendar id="de" value="#{ListaOsBean.dataDe}" mindate="01/01/10" maxdate="" update="ate" />
                <p:outputLabel for="ate" value="Até:" />
                <p:calendar id="ate" value="{ListaOsBean.dataAte}" mindate="#{ListaOsBean.getDataDe()}" maxdate="" />
            </h:panelGrid>
        </h:form>
    </p:panel>
</body>
</html>

package br.com.moriahitg.bean;

import br.com.moriahitg.dao.SZA990DAO;
import br.com.moriahitg.modelo.SZA990;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

@ManagedBean
@SessionScoped
public class ListaOsBean {

    List<SZA990> list = new ArrayList<SZA990>();
    Date dataDe;
    String dataDeS, dataAteS;

    @SuppressWarnings("unchecked")
    public String addOSNaListaPorCliente() {
        HttpServletRequest request = (HttpServletRequest)   FacesContext.getCurrentInstance().getExternalContext()
                .getRequest();
        HttpSession session = request.getSession(true);
        String a1_cod = (String) session.getAttribute("A1_COD");
        SZA990DAO szadao = new SZA990DAO();
        list = szadao.getOSPorCliente(a1_cod);
        return "/listaDeOSs.xhtml?faces-redirect=true";
    }

    public List<SZA990> getList() {
        return list;
    }

    public void setList(List<SZA990> list) {
        this.list = list;
    }

    public Date getDataDe() {
        return dataDe;
    }

    public void setDataDe(Date dataDe) {
        this.dataDe = dataDe;
    }

//  public Date getDataAte() {
//      return dataAte;
//  }

//  public void setDataAte(Date dataAte) {
//      this.dataAte = dataAte;
//  }

    public String getDataDeS() {
        return dataDeS;
    }

    public void setDataDeS(String dataDeS) {
        this.dataDeS = dataDeS;
    }

    public String getDataAteS() {
        return dataAteS;
    }

    public void setDataAteS(String dataAteS) {
        this.dataAteS = dataAteS;
    }

}