Ricavare valore textField con JSF

[magnus]

Ciao ragazzi,
ho realizzato una semplice JSF:

<?xml version="1.0" encoding="UTF-8"?>
<!-- 
    Document   : Page1
    Created on : 24-mar-2009, 11.34.29
    Author     : Magnus
-->
<jsp:root version="2.1" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:webuijsf="http://www.sun.com/webui/webuijsf">
    <jsp:directive.page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"/>
    <f:view>
        <webuijsf:page id="page1">
            <webuijsf:html id="html1">
                <webuijsf:head id="head1">
                    <webuijsf:link id="link1" url="/resources/stylesheet.css"/>
                </webuijsf:head>
                <webuijsf:body id="body1" style="-rave-layout: grid">
                    <webuijsf:form id="form1">
                        <webuijsf:textField id="textField1" style="position: absolute; left: 72px; top: 24px" text="ssss" valueChangeListenerExpression="#{TipiSoggetto.textField1_processValueChange}"/>
                        <webuijsf:button actionExpression="#{TipiSoggetto.button1_action}" id="button1" style="position: absolute; left: 24px; top: 24px" text="Button"/>
                    </webuijsf:form>
                </webuijsf:body>
            </webuijsf:html>
        </webuijsf:page>
    </f:view>
</jsp:root>

E sua relativa pagina di codice java:

public class TipiSoggetto extends AbstractPageBean {


    public void init() {

        super.init();
        try {
            _init();
        } catch (Exception e) {
            log("Page1 Initialization Failure", e);
            throw e instanceof FacesException ? (FacesException) e : new FacesException(e);
        }
    }

    public void preprocess() {
    }

    public void prerender() {
    }

    public void destroy() {
    }

    private void _init() {
       
    }

    public String button1_action() {

        return null;
    }
 
} 

Mi domando: come posso recuperare ( e quindi gestire ) all'interno del metodo button1_action il valore del textField1 prima creato?