<h:form style="margin-top:200px">
			    <h:panelGrid columns="2" cellpadding="5">
			        <h:outputText value="Blur: " />
			        <p:inputText id="surname" value="#{b_UserView.lastname}">
			            <p:ajax event="blur" update="out2" />
			        </p:inputText>
			        <h:inputText id="out2" value="#{b_UserView.vorname}" />
			    </h:panelGrid>
			</h:form>







#####################################

BEAN

@ManagedBean(name="b_UserView")
public class B_UserView {
	private String lastname ="username";
	private String vorname = null;

	@Inject
	I_UserService loaduser;

	public String getVorname() {
		this.vorname = loaduser.getUservorname(lastname);
		System.out.println("Vorname: " + vorname);
		return this.vorname;
	}

	public void setVorname(String vorname) {
		System.out.println("Set vorname: " + vorname);
		this.vorname = vorname;
	}

	public String getLastname() {
		System.out.println("Nachname: " + lastname);
		return lastname;
	}

	public void setLastname(String lastname) {
		System.out.println("Set lastname: " + lastname);
		this.lastname = lastname;
	}
}



###########################


INTERFACE

public String getUservorname(String username);


############################


IMPL



public String getUservorname(String username){
		if (username.equals(testuser.getUsername())){
			return testuser.getVorname();
		} else {
			return "not Hans";
		}

	}