Re: No action will be executed in Myfaces

From:
"hiwa" <HGA03630@nifty.ne.jp>
Newsgroups:
comp.lang.java.programmer
Date:
6 Nov 2006 17:52:19 -0800
Message-ID:
<1162864339.337008.272750@m7g2000cwm.googlegroups.com>
marsud wrote:

Hi folks

actually I started programming webapplication using MyFaces with the
tomahawk extention. The website will be displayed the way I want it
except that after any for the test "com.sun.faces.saveStateFieldMarker"
will be generated.

But the action and the actionlistener are not called as I can validate
by viewing the log of the application.
Now here is the complete code of the sample application.

Hopefully anyone has an idea
marsud

WEB.xml
=======
<web-app>
    <display-name>my-Webapplication</display-name>
    <description>Test Application</description>

    <!-- Listener, that does all the startup work (configuration,
init). -->
    <listener>

<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</=

listener-class>

    </listener>

    <!-- filtersettings for MyFacesExtentions -->
    <filter>
        <filter-name>MyFacesExtensionsFilter</filter-name>

<filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter</filter-c=

lass>

        <!--
        <init-param>
            <param-name>uploadMaxFileSize</param-name>
            <param-value>5m</param-value>
            <description>Set the size limit for uploaded files.
                Format: 10 - 10 bytes
                10k - 10 KB
                10m - 10 MB
                1g - 1 GB</description>
        </init-param>
        <init-param>
            <param-name>uploadThresholdSize</param-name>
            <param-value>100k</param-value>
            <description>Set the threshold size - files
                below this limit are stored in memory, files above
                this limit are stored on disk.

                Format: 10 - 10 bytes
                10k - 10 KB
                10m - 10 MB
                1g - 1 GB
            </description>
        </init-param>
        -->
        <init-param>
            <description>
                Defines the size until the selected File is keeped in
memory. Files bigger than the specified
                value are hold in a temporary File on Disk.
            </description>
            <param-name>uploadThresholdSize</param-name>
            <param-value>100k</param-value>
        </init-param>
    </filter>

    <!-- extension mapping for adding <script/>, <link/>, and other
resource tags to JSF-pages -->
    <filter-mapping>
        <filter-name>MyFacesExtensionsFilter</filter-name>
        <servlet-name>facesservlet</servlet-name>
    </filter-mapping>

    <filter-mapping>
        <filter-name>MyFacesExtensionsFilter</filter-name>
        <url-pattern>/my-webapp/*</url-pattern>
    </filter-mapping>

    <!-- servlets and their mappings -->
    <servlet>
        <servlet-name>facesservlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>facesservlet</servlet-name>
        <url-pattern>*.jsf</url-pattern>
    </servlet-mapping>

    <!-- welcome file to enter the application -->
    <welcome-file-list>
        <welcome-file> index.jsp </welcome-file>
    </welcome-file-list>
</web-app>

FACES-CONFIG.xml
================

<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD
JavaServer Faces Config 1.1//EN"
"http://java.sun.com/dtd/web-facesconfig_1_1.dtd">

<!--
    Document : faces-config.xml
    Created on : 6. November 2006, 09:33
    Author : marsud
    Description:
        Purpose of the document follows.
-->

<faces-config>

    <managed-bean id="actionTestControl">
        <description>Control for testing Actions</description>
        <managed-bean-name>actionTest</managed-bean-name>

<managed-bean-class>net.sudau.test.ActionTest</managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
    </managed-bean>

    <navigation-rule id="actiontest">
        <description>Test Actions and ActionListener</description>
        <from-view-id>test.jsp</from-view-id>
        <navigation-case>
            <from-action>add</from-action>
            <to-view-id>test.jsf</to-view-id>
        </navigation-case>
        <navigation-case>
            <from-outcome>delete</from-outcome>
            <to-view-id>test.jsf</to-view-id>
        </navigation-case>
    </navigation-rule>
</faces-config>

INDEX.jsp
=========
<jsp:forward page="test.jsf" />

TEST.jsp
========
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://myfaces.apache.org/tomahawk" prefix="t" %>

<html>
    <head>
        <title>Actiontests</title>
    </head>

    <body>
        <h1>Action Tests</h1>
        <f:view>

            <h:form id="addValue">
                <h:inputText value="#{actionTest.input}" title="enter
value to add." />
                <h:commandButton action="#{actionTest.add}" />

                <ul>
                    <t:dataList var="value"
value="#{actionTest.values}">
                        <f:verbatim><li></f:verbatim>
                        <h:commandLink
actionListener="#{actionTest.delete}">
                            <h:outputText value="#{value}" />
                        </h:commandLink>
                        <f:verbatim></li></f:verbatim>
                    </t:dataList>
                </ul>
            </h:form>
        </f:view>
    </body>
</html>

ActionTest.java
===============
package net.sudau.test;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.faces.event.ActionEvent;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
 * <code>ActionTest</code>
 * @author marsud
 * @since 6. November 2006
 */
public class ActionTest {

    /** Logger for all instances of this class */
    private static final Log LOG = LogFactory.getLog
(ActionTest.class);

    private List values;
    private String input;

    /** Creates a new instance of ActionTest */
    public ActionTest () {
        LOG.debug ("Create new instance of " + getClass ().getName ());
        values = new ArrayList ();
        values.add ("Hello");
        values.add ("World");
        values.add ("1");
        values.add ("nothing");

        input = "";
    }

    public void add () {
        LOG.debug ("adding value to List. <value= " + input + ">");
        values.add (input);
        input = "";
    }

    public void delete (ActionEvent actionEvent) {
        LOG.debug ("delete value from List. <value= " +
actionEvent.getSource () + ">");
        values.remove (actionEvent.getSource ());
    }

    public String getInput () {
        LOG.debug ("actual input value is: " + input);
        return input;
    }

    public void setInput ( String newValue) {
        LOG.debug ("New Value to add is: " + input);
        input = newValue;
    }

    public List getValues () {
        Collections.sort (values);
        return values;
    }

} // end of class ActionTest

Gru=DF
Mark

1. Value of action attribute, a method binding, should point a method
of no-arg and returning a String.
2. Your <navigation-case> entries are weird and wrong. See standard
documentations, or good books, on JSF app development/deployment.

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