Puneet N Vyas

Thanks a lot for your time,i have resolved it using immediate attribute .

Hi,
use string builder and regex comparison method.

Hi,
you are doing String comparison with == ?

Hello JSF Experts ,

I have to make dependent drop down using <h:selectOneMenu> tag,i did this.
i want whenever user picks parent drop down(country in my case),the child drop down should change(States in my case).
).
this use case is working fine using jsf 1.1 api and valuechange listener for jsf components.in addition to that what i want
is whenever user changes parent drop down the first element of child drop down should come as output text.
i tried implementing this use case with the following code.how ever it is not working as per functionality.
Please any one from JSF experts group can give me some pointers,i will be really thankful to experts.

Java Classes RegisterForm (Purpose to get registration form data)
package com.csc.test; import java.util.ArrayList; import java.util.Collection; import java.util.List; import java.util.Locale; import javax.faces.component.html.HtmlInputText; import javax.faces.component.html.HtmlOutputText; import javax.faces.component.html.HtmlSelectOneMenu; import javax.faces.context.FacesContext; import javax.faces.event.ValueChangeEvent; import javax.faces.model.SelectItem; import com.csc.test.Country; public class RegisterForm { private String streetAddress; private String city; private String state; private String country; private String myCity; private HtmlOutputText text; private String selectedValue; //myCity public String getSelectedValue() { return selectedValue; } public void setSelectedValue(String selectedValue) { this.selectedValue = selectedValue; } public HtmlOutputText getText() { return text; } public void setText(HtmlOutputText text) { this.text = text; } public String getMyCity() { return myCity; } public void setMyCity(String myCity) { this.myCity = myCity; } private static ArrayList countryItems = null; private static ArrayList cityItems = null; public String getCityColumn() { return cityColumn; } public void setCityColumn(String cityColumn) { this.cityColumn = cityColumn; } public HtmlInputText cityText; public HtmlInputText getCityText() { return cityText; } public void setCityText(HtmlInputText cityText) { this.cityText = cityText; } public String cityColumn; // PROPERTY: countryNames public Collection getCountryNames() { if (countryItems == null) { countryItems = new ArrayList(); // List<SelectItem> CountryList = new ArrayList(); for (Country country : Country.values()) { countryItems.add(new SelectItem(country.getCountryName())); } } return countryItems; } // PROPERTY: cityNames // PROPERTY: countryNames public Collection getcityNames() { if (cityItems == null) { cityItems = new ArrayList(); cityItems.add(new SelectItem( "Selected Contry wise states will apear here")); System.out.println("in null check"); } return cityItems; } // PROPERTY: streetAddress public void setStreetAddress(String newValue) { streetAddress = newValue; } public String getStreetAddress() { return streetAddress; } // PROPERTY: city public void setCity(String newValue) { city = newValue; } public String getCity() { return city; } // PROPERTY: state public void setState(String newValue) { state = newValue; } public String getState() { return state; } // PROPERTY: country public void setCountry(String newValue) { country = newValue; } public String getCountry() { return country; } public void countryChanged(ValueChangeEvent event) { System.out.println("value changes"); FacesContext context = FacesContext.getCurrentInstance(); String valueSelected = (String) event.getNewValue(); HtmlSelectOneMenu com = (HtmlSelectOneMenu) event.getComponent(); System.out.println("value is" + valueSelected); if (valueSelected.equals("INDIA")) { this.cityItems.clear(); this.cityItems.add(new SelectItem("MP")); this.cityItems.add(new SelectItem("RJ")); } if (valueSelected.equals("AUSTRALIA")) { this.cityItems.clear(); this.cityItems.add(new SelectItem("Ashmore and Cartier Islands")); this.cityItems .add(new SelectItem("Australian Antarctic Territory")); } if (valueSelected.equals("PAKISTAN")) { this.cityItems.clear(); this.cityItems.add(new SelectItem("Bahawalpur")); this.cityItems.add(new SelectItem("Karachi")); } SelectItem i = (SelectItem) this.cityItems.get(0); System.out.println("select item value is from country changed"+i.getValue()); this.setSelectedValue((String)i.getValue()); System.out.println("cityChanged "+this.getSelectedValue()); } public void cityChanged(ValueChangeEvent event) { System.out.println("value changes in city is as per new html component" + event.getNewValue()); FacesContext context = FacesContext.getCurrentInstance(); System.out.println("OLD VAlue "+event.getOldValue()); this.setSelectedValue((String)event.getNewValue()); System.out.println("cityChanged "+this.getSelectedValue()); } }

Java enum Country(enum Country to represent country names )

/** * */ package com.csc.test; /** * @author pvyas * */ public enum Country { India ("INDIA"), Australia("AUSTRALIA"), Pakistan("PAKISTAN"); private String countryName; /** * @return the countryName */ Country(String countryName){ this.countryName = countryName; } public String getCountryName() { return countryName; } }

Resource Bundle messages_en_US.properties
windowTitle=Using Value Change Events pageTitle=Please fill in your address streetAddressPrompt=Address cityPrompt=City statePrompt=State countryPrompt=Country submit=Submit address

and finally UI code(index.jsp) which is having simple form elements

<html> <%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %> <%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %> <f:view> <head> <link href="styles.css" rel="stylesheet" type="text/css"/> <f:loadBundle basename="messages_en_US" var="msgs"/> <title> <h:outputText value="#{msgs.windowTitle}"/> </title> </head> <body> <h:outputText value="#{msgs.pageTitle}" styleClass="emphasis"/> <p/> <h:form> <h:panelGrid columns="2"> <h:outputText value="#{msgs.streetAddressPrompt}"/> <h:inputText id="streetAddress" value="#{form.streetAddress}"/> <h:outputText id="cityPromptI" value="#{msgs.cityPrompt}" /> <h:outputText id="mytext" value="#{form.selectedValue}"/> <h:outputText id="statePrompt" value="#{msgs.statePrompt}"/> <h:inputText value="#{form.state}"/> <h:outputText value="#{msgs.countryPrompt}"/> <h:selectOneMenu id= "Asia" value="#{form.country}" onchange="submit()" valueChangeListener="#{form.countryChanged}"> <f:selectItems value="#{form.countryNames}"/> </h:selectOneMenu> <br></br> <h:outputText value="#{msgs.cityPrompt}"/> <h:selectOneMenu id="CityList" value="#{form.city}" valueChangeListener="#{form.cityChanged}"> <f:selectItems value="#{form.cityNames}"/> </h:selectOneMenu> </h:panelGrid> <p/> <h:commandButton value="#{msgs.submit}" action="result" /> </h:form> </body> </f:view> </html>

Any Pointers from Experts are welcome.

Thanks,
Puneet Vyas

@

can you send me link to jdk download for fedora 7,i am unable to find on sun's website

i will be thankful to you


regards
puneet

hi,
can any one tell me link to JDK for linux platform

could anyone describe the difference between these two operations,wht's the fundamental difference between these two!


regards
puneet vyas

hi,
having set text area rows ,now my output uses more then the number of rows then i have specified,i am displaying that output via scroll bar,but how can get dynamic count of the rows that text area has been using to display the output via scroll bar.

@
go to deployment descriptor, and click the Advicebean icon and click sun specification under that add your jndi names

@

have you set for AdviceBean the jndi name in the deployment tool you are using

this is the running version but it din't lookup into jndi

import javax.naming.*;import java.util.*; import java.rmi.*; import javax.rmi.*; import headfirst.*; import javax.ejb.*; // not all of these imports are used in this code... // but in a *real* client you'd probably need at least // java.rmi.RemoteException and javax.ejb.CreateException public class AdviceClient { public static void main(String[] args) { new AdviceClient().go(); } public void go() { try { Properties env = new Properties(); env.put("java.naming.factory.initial","com.sun.jndi.cosnaming.CNCtxFactory"); env.put("java.naming.provider.url","iiop://localhost:4848"); System.out.println("testing before context"); // nothing works afterwrds from here Context ic = new InitialContext(env); System.out.println("testing after context");//this line won't execute //System.out.println("my message"); Object o = ic.lookup("Advisor"); //for my Advice bean JNDI name is Advisor // replace with YOUR JNDI name for the bean AdviceHome home = (AdviceHome) PortableRemoteObject.narrow(o, AdviceHome.class); Advice advisor = home.create(); System.out.println(advisor.getMessage()); } catch (Exception ex) { ex.printStackTrace(); } } }

@
import java.util.*;

add proper jndi name for your bean component,i am going through same problem,i didn't find how and where to enter jndi name in either deployment tool or in
application server

i am working with j2ee 1.4 application server,i am following the steps of head first book,i have made ejb 1 jar containing the bean,now i didn't find how to run the deployment verifier in the deployment tool provided in the application server and unable to proceed!

when we compile this it gives possible loss of precision which is obvious,but why this same code runs in other language c/c++,i run it on linux based gcc compiler,can any one tell why this happens

public class test1 { public static void main(String args[]) { char c = 'c'; int i = 10; double d = 10; long l = 1; String s = "Hello"; s=s+i; c=(c+i); System.out.println(c); } }

can any one tell me difference between these three relationships between usecases,also can any one tell me when to use uses relationship between to usecases