Ajax Echo-Tutorial doesn't work!!!

[markus2000]

Hi,

i have testet the Ajax Echo-Tutorial from richfaces. It works but with the following simple enhancments it doesn't work:

<webuijsf:form binding="#{Page1.form1}" id="form1">
 <h:selectOneRadio id="fruit" value="#{fruitInfoBean.fruit}"
 valueChangeListener="#{fruitInfoBean.changeFruit}">
 <f:selectItems value="#{fruitInfoBean.fruits}"/>
 <a4j:support event="onchange" ignoreDupResponses="true" reRender="varietyInfo,variety"/>
 </h:selectOneRadio>
 <h:selectOneMenu id="variety" value="#{fruitInfoBean.variety}">
 <f:selectItems value="#{fruitInfoBean.varieties}"/>
 </h:selectOneMenu>
 <h:outputText id="varietyInfo" value="#{fruitInfoBean.varietyInfo}" />
 <br/>
 <rich:panel id="panel13" header="Simple Echo">
 <h:inputText id="input12" size="50" value="#{echoBean.text}" >
 <a4j:support event="onkeyup" reRender="rep"/>
 </h:inputText>
 <h:outputText value="#{echoBean.text}" id="rep"/>
 </rich:panel>
 </webuijsf:form>

EchoBean.java:

public class EchoBean
{
 private String text = null;

 public EchoBean() {}

 public String getText()
 {
 return text;
 }

 public void setText(String text)
 {
 this.text = text;
 }
}

FruitInfoBean.java:

public class FruitInfoBean
{
 private SelectItem[] fruits = { new SelectItem("Pear", "Pear"), new SelectItem("Apple", "Apple"),
 new SelectItem("Orange", "Orange"), new SelectItem("Peach", "Peach") };
 private SelectItem[] varietiesPear = { new SelectItem("Pear1", "Pear1") };
 private SelectItem[] varietiesApple = { new SelectItem("Apple1", "Apple1"), new SelectItem("Apple2", "Apple2") };
 private SelectItem[] varietiesOrange = { new SelectItem("Orange1", "Orange1"), new SelectItem("Orange2", "Orange2") };
 private SelectItem[] varietiesPeach = { new SelectItem("Peach1", "Peach1"), new SelectItem("Peach2", "Peach2"), new SelectItem("Peach3", "Peach3") };
 private SelectItem[] varieties = null;

 private String fruit = fruits[1].getLabel();
 private String variety = "no one";
 private String varietyInfo = "no one";

 public FruitInfoBean() {}

 public String getFruit()
 {
 return fruit;
 }

 public SelectItem[] getFruits()
 {
 return fruits;
 }

 public void changeFruit(ValueChangeEvent event)
 {
 String str = (String)event.getNewValue();
 variety = str;
 varietyInfo = str + " is now selected and active!!!";

 if (str.startsWith("Pear"))
 {
 varieties = varietiesPear;
 }
 else if (str.startsWith("Apple"))
 {
 varieties = varietiesApple;
 }
 else if (str.startsWith("Orange"))
 {
 varieties = varietiesOrange;
 }
 /*else
 {
 varieties = varietiesPeach;
 }*/
 }

 public String getVariety()
 {
 return variety;
 }

 public SelectItem[] getVarieties()
 {
 if (varieties == null)
 {
 varieties = new SelectItem[] { new SelectItem("Peach", "Peach") };
 return varieties;
 }

 return varieties;
 }

 public String getVarietyInfo()
 {
 return varietyInfo;
 }
}

What I have added is a radio-selection of fruits and a combobox of fruit types. If a fruit is selected (e.g. Orange) the combobox is updated with new values. The interesting effect now is:

If i type at the echo server and then select e.g. Orange the "changeFruit" event is called and after this i type again at the echo server no "setText" event occurs on the server. The echo-server doesn't work.

It looks like that the "state information" gets lost. Thanks in advance.

cu
Markus

[sergeysmirnov]

No, it is just a basic of JSF that need to be known to start working with JSF.

In general, your code snippet is a good example for topic, why JSF should works exactly like that.

For starter, what the version of JSF, RichFaces and what is the scope for #{fruitInfoBean}