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public class ZaduzenjeManagedBean {

	private int idKnjige;
	Knjiga knjiga;
	Primerak primerak;
	private int idClana;
	boolean zaduzi;
	List<Primerak> primerci;


	public void ucitajKnjige(){
		knjiga = getKnjigaForId(EntityManager em, idKnjige);
	}

	/// pokusao sam ovaj metod da izvucem slobodne primerke .... aaaa ne znam nadam se da si uspio bolje nesto od mene
	/// i sad kao da ovu postojecu listu da vratim u jsf stranicu i da obaevezno dodaj konsturktor
	public void slobodniPrimerci(){
		for(int i = 0; i<knjiga.primeraks.size(); i++){
			if(isSlobodanPrimerak(EntityManager em, knjiga.primerak.invBroj){
				primerci.add(knjiga.primerak);
			}
		}
	}

	public void zaduziClana(){
		zaduzi = zaduzi(EntityManager em, idClana);
	}
}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"
	xmlns:ui="http://java.sun.com/jsf/facelets"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:p="http://primefaces.org/ui">

<h:head>
</h:head>
<h:body>
	<f:view>
		<h:panelGrid columns="1">
			<h:form>
			<h:panelGrid columns="1">
				<h:outputText value="ID Knjige"/>
				<h:inputText value="#{zaduzenjeManagedBean.idKnjige}"/>
				<h:commandButton value="Ucitaj knjige" action="#{zaduzenjeManagedBean.ucitajKnjige()}" execute="@form" render="clanPanel zaduzenjaPanel"/>
			</h:panelGrid>
			</h:form>

			<h:form>
			<h:panelGrid columns="1">
			<h:selectOneMenu value="#{zaduzenjeManagedBean.primerci}}" >

			</h:selectOneMenu>
			</h:panelGrid>
			</h:form>
			<h:panelGrid columns="1">
				<h:outputText value="ID Korisnika"/>
				<h:inputText value="#{zaduzenjeManagedBean.idClan}"/>
				<h:commandButton value="Zaduzi" action="#{zaduzenjeManagedBean.zaduziClana}" execute="@form"/>
			</h:panelGrid>
			</h:form>
		</h:panelGrid>
	</f:view>

</h:body>
</html>