This non-working implementation tries to start a new ScheduledExecutorService to dynamically push new Items to the client and update the form:
index.xhtml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui" xmlns:ui="http://java.sun.com/jsf/facelets"
xml:lang="en" lang="en">
<h:head>
<title>GG Well Trade</title>
</h:head>
<h:body>
<h:form>
<p:socket channel="/notify" onMessage="#{bean.add()}"/>
<p:commandButton value="Start" action="#{bean.start()}"/>
<ui:repeat value="#{bean.items}" var="item" id="content">
<p:outputLabel for="foo" value="#{item.label}" />
<p:inputText id="foo" value="#{item.value}" />
<p:commandButton value="Remove" action="#{bean.remove(item)}" update="#form" />
<br/>
</ui:repeat>
<!--<p:commandButton value="Add" action="#{bean.add}" update="#form" />-->
</h:form>
</h:body>
</html>
Item.class
public class Item {
private String label;
private String value;
public String getLabel() {
return label;
}
public void setLabel(String label) {
this.label = label;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
Bean.class
#ManagedBean
#ViewScoped
#PushEndpoint("/notify")
public class Bean implements Serializable{
private List<Item> items;
#PostConstruct
public void init() {
items = new ArrayList<Item>();
}
public void start() {
ScheduledExecutorService timer = Executors.newSingleThreadScheduledExecutor();
timer.scheduleAtFixedRate(()->add(),0,3,TimeUnit.SECONDS);
}
public void add() {
Item item = new Item();
item.setLabel("label" + items.size());
items.add(item);
EventBus eventBus = EventBusFactory.getDefault().eventBus();
eventBus.publish("/notify", item);
}
#OnMessage(encoders = {JSONEncoder.class})
public Item onMessage(Item item){
return item;
}
public void remove(Item item) {
items.remove(item);
}
public List<Item> getItems() {
return items;
}
}
Pressing the Add button doesn't update the form, Start button instead does but only on clicks. Is there better ways to do this?
EDIT: exception raised:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException
javax.faces.webapp.FacesServlet.service(FacesServlet.java:671)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
java.lang.NullPointerException
Bean.add(Bean.java:43)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
javax.el.BeanELResolver.invoke(BeanELResolver.java:158)
javax.el.CompositeELResolver.invoke(CompositeELResolver.java:79)
org.apache.el.parser.AstValue.getValue(AstValue.java:159)
org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
org.primefaces.component.socket.Socket.getOnMessage(Socket.java:125)
org.primefaces.component.socket.SocketRenderer.encodeEnd(SocketRenderer.java:55)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:920)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
javax.faces.render.Renderer.encodeChildren(Renderer.java:176)
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:890)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:458)
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:134)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:659)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/8.5.8 logs.
Related
I am getting error while trying a simple application with JSF.
javax.el.MethodNotFoundException: Method not found: com.jsf.training.beans.TravelBean#4b6b8628.travelInfo()
at org.apache.el.util.ReflectionUtil.getMethod(ReflectionUtil.java:245)
at org.apache.el.parser.AstValue.invoke(AstValue.java:271)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:818)
at javax.faces.component.UICommand.broadcast(UICommand.java:300)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1044)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
My managed bean is :
#ManagedBean (name="travelBean")
#SessionScoped
public class TravelBean {
private int index = 0;
private String source;
private String destination;
private Date date;
java.sql.Date sqlDate;
private boolean visible = false;
public boolean isVisible() {
return visible;
}
public void setVisible(boolean visible) {
this.visible = visible;
}
public TravelBean() {
}
public String getSource() {
return source;
}
public void setSource(String source) {
this.source = source;
}
public String getDestination() {
return destination;
}
public void setDestination(String destination) {
this.destination = destination;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public void getDateInSql() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
sdf.format(date);
sqlDate = new java.sql.Date(date.getTime());
}
public void getTravelInfo() throws SQLException {
setVisible(true);
/*SearchServiceImpl search = new SearchServiceImpl();
search.searchTrainsService(travelBean);*/
System.out.println("********** in travel Bean :" +source +destination +date);
TrainBean tb = new TrainBean();
tb.getTrainsList(source,destination,sqlDate);
}
and my xhtml :
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head>
<script name="jquery/jquery.js" library="primefaces"></script>
<h:outputStylesheet library="css" name="resources/css/table-style.css" />
</h:head>
<h:body>
<h:form>
<p:growl id="message"></p:growl>
<p:tabView activeIndex="#{travelBean.index}" dynamic="true" effect="fade" effectDuration="fast">
<p:tab title="Trains">
<h:form>
<h:outputText value="Source"/>:<h:inputText id="source" value="#{travelBean.source}"></h:inputText>
<h:outputText value="Destination"/>:<h:inputText id="destination" value="#{travelBean.destination}"></h:inputText>
<h:outputText value="Date"/>:<p:calendar id="date" value="#{travelBean.date}"></p:calendar>
<h:commandButton value="Search Trains" update="table-wrapper" action="#{travelBean.travelInfo}" actionListener="#{travelBean.travelInfo}" >
<!-- <f:ajax execute="#this source destination date" render="output" /> -->
<f:attribute name="source" value="#{travelBean.source}"/>
<f:attribute name="destination" value="#{travelBean.destination}"/>
<f:attribute name="date" value="#{travelBean.date}"/>
</h:commandButton>
<h2><h:outputText id="output" value="#{travelBean.source} #{travelBean.destination} #{travelBean.date}"/></h2>
</h:form>
</p:tab>
<p:tab title="Flights">
<h1>Search flights by routes</h1>
<h:form>
<h:outputText value="Source"/>:<h:inputText id="source" value="#{travelBean.source}"></h:inputText>
<h:outputText value="Destination"/>:<h:inputText id="destination" value="#{travelBean.destination}"></h:inputText>
<h:outputText value="Date"/>:<h:inputText id="date" value="#{travelBean.date}"></h:inputText>
<h:commandButton value="Search Flights" >
<f:ajax execute="#form" render="output" />
</h:commandButton>
<h2><h:outputText id="output" value="#{travelBean.source}"/> </h2>
</h:form>
</p:tab>
</p:tabView>
</h:form>
</h:body>
</html>
I have looked at the other questions, and tried the answer but nothing worked.
Any help is highly appreciated. Thanks in advance!
Just in case the same kind of problem might happen if you are not importing the right library. Sometimes your IDE can autoimport: "import java.awt.event.ActionEvent;" instead of "import javax.faces.event.ActionEvent;" and thus causing the "same" issue. It will not be able to find the method.
action="#{travelBean.travelInfo}" is an action method. Only value methods converts travelInfo from EL expression to getTravelInfo() when searching for appropriate method. In action method exactly travelInfo() method is expected to be present in your managed bean, but it isn't.
This question already has answers here:
Creating master-detail pages for entities, how to link them and which bean scope to choose
(2 answers)
Closed 6 years ago.
I've got a datatable with values in which I get from my DB.
In my class myBean, I've got an Variable of type User to store the selected row. It just can be selected one row. Now I want to call this Variable from an other bean which is called printUser to get the selected User.
But it always prints null.
View
<p:dataTable id="userDT" var="user" value="#{myBean.getUserList()}" selection="#{myBean.selectedUser}"
rowKey="#{user.id}" >
<p:column selectionMode="single" style="width:16px;text-align:center"/>
<p:column width="200" headerText="ID">
<h:outputText value="#{user.id}" />
</p:column>
<p:column width="200" headerText="Firstname">
<h:outputText value="#{user.firstname}" />
</p:column>
<p:column width="250" headerText="Lastname">
<h:outputText value="#{user.lastname}" />
</p:column>
</p:dataTable>
myBean
#Named(value = "myBean")
#ManagedBean
#SessionScoped
public class myBean implements Serializable {
private static final long serialVersionUID = 1L;
private User selectedUser = new User();
public myBean() {
}
public List<User> getUserList() {
...
}
public Patient getSelectedUser() {
return selectedUser;
}
public void setSelectedUser(User selectedUser) {
this.selectedUser= selectedUser;
}
}
User.java
public class User {
private Integer id;
private String firstname;
private String lastname;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
}
printUser
#Named(value = "printUser")
#ManagedBean
#RequestScoped
public class printUser {
public printUser() {
}
public void getSelectedUserData(){
myBean bean = new myBean();
User user = new User();
user = bean.getSelectedUser();
System.err.println("UserID: " + user.getID());
}
}
Hope you undertand my Problem.
Thanks alot
Excuse my English
This is an example to use the entity of the selected row in the same page and in another page. The example use Lombok Getter,Setter and Data annotations for shortness:
The entity for the DataTable:
#Entity
#Data
#TableGenerator( name = "GEN_TestEntity1", table = "ID_Generator", pkColumnName = "GEN_KEY", pkColumnValue = "GEN_TestEntity1", valueColumnName = "GEN_VALUE" )
#NamedQuery( name = TestEntity1.QUERY_ALL_TESTENTITY1, query = "SELECT te1 FROM TestEntity1 te1" )
public class TestEntity1 implements Serializable
{
public static final String QUERY_ALL_TESTENTITY1 = "query_All_TestEntity1";
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue( strategy = GenerationType.TABLE, generator = "GEN_TestEntity1" )
private int id;
#Column
private String name;
}
The ManagedBean as a controller:
#ManagedBean
#SessionScoped
public class EntityBean
{
#EJB
private EntitySER entitySER;
#Getter
#Setter
private TestEntity1 selectedEntity;
public List<TestEntity1> getAllTestEntity1()
{
return entitySER.getAllTestEntity1();
}
public void onRowSelect( SelectEvent event_ )
{
}
}
Another ManagedBean which uses the first one (if you really want it):
#ManagedBean
#RequestScoped
public class AnotherBean
{
#ManagedProperty( value="#{entityBean}" )
private EntityBean entityBean;
...
}
The stateless session bean:
#Stateless
#LocalBean
public class EntitySER
{
#PersistenceContext
private EntityManager em;
public List<TestEntity1> getAllTestEntity1()
{
Query q = em.createNamedQuery( TestEntity1.QUERY_ALL_TESTENTITY1 );
return q.getResultList();
}
}
The index page (index.xhtml):
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<h:head>
<title>Page 1</title>
</h:head>
<h:body>
<h:form id="form">
<p:dataTable id="table_TestEntity1" value="#{entityBean.allTestEntity1}" var="entity" selection="#{entityBean.selectedEntity}"
rowKey="#{entity.id}" selectionMode="single">
<p:ajax event="rowSelect" listener="#{entityBean.onRowSelect}" update=":form:entID :form:entName"/>
<p:column>
#{entity.id}
</p:column>
<p:column>
#{entity.name}
</p:column>
</p:dataTable>
<p>
<h:outputLabel id="entID" value="#{entityBean.selectedEntity.id}"/>:
<h:outputLabel id="entName" value="#{entityBean.selectedEntity.name}"/>
</p>
<p>
<h:commandButton value="Page 2" action="/faces/another.xhtml"/>
</p>
</h:form>
</h:body>
</html>
The another Page (another.xhtml):
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html">
<h:head>
<title>Another Page</title>
</h:head>
<h:body>
<p>
The selected entity: #{entityBean.selectedEntity.id}:#{entityBean.selectedEntity.name}
</p>
<h:form>
<h:commandButton value="Back" action="/faces/index.xhtml"/>
</h:form>
</h:body>
</html>
Mojara 2.1.21
I'm using primefaces editor component p:editor. The value attribute in editor is a complex EL-Statement.
<h:form>
<p:datatable value="#{bean.getItems}" var="item">
<p:column>
<p:editor value="bean.A(item).value" />
</p:column>
</p:datatable>
</h:form>
class Bean {
public Entity A (Item i) { return ...}
}
class Entity {
public String getValue();
public void setValue(String);
}
The getter Entity.getValue() is called, but the setter Entity.serValue(String) is not called, if form is submitted.
I suppose it has nothing to do with editor but a common feature of EL. How can I instruct the editor to call a setter if some changes will be made in editor by a user ?
UPDATE
The variant <p:editor value="#{multiEditorBacking.eval(editor).text}" id="textArea" /> has trouble if setter will be called. But <p:editor value="#{editor.text}" id="textArea" /> is ok. The following examples can be used for testing.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:p="http://primefaces.org/ui"
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:o="http://omnifaces.org/ui" xmlns:pe="http://primefaces.org/ui/extensions">
<ui:composition>
<h:head></h:head>
<h:body>
<h:form id="formId">
<p:dataTable value="#{multiEditorBacking.editors}" var="editor" rowIndexVar="index" >
<p:column>
<p:commandButton value="Refresh" actionListener="#{multiEditorBacking.onRefresh(index)}" update="textArea"
process="#this" />
<p:editor value="#{multiEditorBacking.eval(editor).text}" id="textArea" />
<!-- <p:editor value="#{editor.text}" id="textArea" /> -->
</p:column>
</p:dataTable>
<p:commandButton value="Save" />
</h:form>
</h:body>
</ui:composition>
</html>
MultiEditorBean.java
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.enterprise.context.SessionScoped;
import javax.inject.Named;
#SessionScoped
#Named
public class MultiEditorBacking implements Serializable{
private List<MultiPojo> editors;
private HashMap <Integer, MultiPojo> hash = new HashMap<Integer, MultiPojo>();
#PostConstruct
public void init(){
editors = new ArrayList<MultiPojo>();
MultiPojo m = new MultiPojo();
m.setText("hey1");
editors.add(m);
hash.put(1, m);
m=new MultiPojo();
m.setText("adf2");
editors.add(m);
hash.put(2, m);
m=new MultiPojo();
m.setText("cjd3");
editors.add(m);
hash.put(3, m);
}
public MultiPojo eval (MultiPojo m){
return m;
}
public void onRefresh (int index){
}
public List<MultiPojo> getEditors() {
return editors;
}
public void setEditors(List<MultiPojo> editors) {
this.editors = editors;
}
public HashMap <Integer, MultiPojo> getHash() {
return hash;
}
public void setHash(HashMap <Integer, MultiPojo> hash) {
this.hash = hash;
}
}
MultiPojo.java
public class MultiPojo {
private String text;
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
}
This works for me, in Mojarra 2.2.5, using EL 2.2. Are you sure you've got that EL version enabled which allows method parameter passing? You need a Servlet 3.x container available (such as Tomcat 7) or you'll need to add the library yourself. However, it seems you've got it as #{multiEditorBacking.eval(editor).text} value for your editors is being properly evaluated.
By the way, your <ui:composition> surrounding <h:head /> and <h:body /> is unecessary. Another thing I don't like from your code is the use of #SessionScoped for pure view matters. Go with #ViewScoped unless you're explicitly dealing with session related stuff.
#SessionScoped
#Named
public class MultiEditorBacking implements Serializable {
private List<MultiPojo> editors;
private HashMap<Integer, MultiPojo> hash = new HashMap<Integer, MultiPojo>();
public MultiEditorBacking() {
editors = new ArrayList<MultiPojo>();
MultiPojo m = new MultiPojo();
m.setText("hey1");
editors.add(m);
hash.put(1, m);
m = new MultiPojo();
m.setText("adf2");
editors.add(m);
hash.put(2, m);
m = new MultiPojo();
m.setText("cjd3");
editors.add(m);
hash.put(3, m);
}
public MultiPojo eval(MultiPojo m) {
return m;
}
public void onRefresh(int index) {
System.out.println("Editor " + index + " refreshed");
}
public List<MultiPojo> getEditors() {
return editors;
}
public void setEditors(List<MultiPojo> editors) {
this.editors = editors;
}
public HashMap<Integer, MultiPojo> getHash() {
return hash;
}
public void save() {
System.out.println("Editors: " + editors);
}
public void setHash(HashMap<Integer, MultiPojo> hash) {
this.hash = hash;
}
public class MultiPojo {
private String text;
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
#Override
public String toString() {
return "MultiPojo [text=" + text + "]";
}
}
}
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:head />
<h:body>
<h:form id="formId">
<p:dataTable value="#{multiEditorBacking.editors}" var="editor"
rowIndexVar="index">
<p:column>
<p:commandButton value="Refresh"
actionListener="#{multiEditorBacking.onRefresh(index)}"
update="textArea" process="#this" />
<p:editor value="#{multiEditorBacking.eval(editor).text}"
id="textArea" />
</p:column>
</p:dataTable>
<p:commandButton value="Save" action="#{multiEditorBacking.save}" />
</h:form>
</h:body>
</html>
See also:
Using EL 2.2 with Tomcat 6.0.24
The solution was to use brackets in EL to get setter called.
<p:editor value="#{(multiEditorBacking.eval(editor)).text}"
id="textArea" />
I am getting error while running this snippet as /facelet/crew/objectMapGossip.xhtml #14,94 value="#{objcetMapBean.searchCrewParam.staffNum}": Property 'staffNum' not readable on type java.lang.String
please help me out from this small error .. I am new to jsf so stucking at things basic ...
Thanks in advance :-)
This is my backing bean...
import javax.faces.bean.ManagedBean;
#ManagedBean(name = "objcetMapBean")
public class ObjectMapGossip {
private SearchCrew1 searchCrewParam = new SearchCrew1("212","kart","asd");
public SearchCrew1 getSearchCrewParam() {
return searchCrewParam;
}
public void setSearchCrewParam(SearchCrew1 searchCrewParam) {
this.searchCrewParam = searchCrewParam;
}
public String search() {
return "success";
}
}
class SearchCrew1 {
public SearchCrew1() {
super();
}
/**
* #param staffNum
* #param surName
* #param rank
*/
public SearchCrew1(String staffNum, String surName, String rank) {
super();
this.staffNum = staffNum;
this.surName = surName;
this.rank = rank;
}
private String staffNum;
private String surName;
private String rank;
public String getStaffNum() {
return staffNum;
}
public void setStaffNum(String staffNum) {
this.staffNum = staffNum;
}
public String getSurName() {
return surName;
}
public void setSurName(String surName) {
this.surName = surName;
}
public String getRank() {
return rank;
}
public void setRank(String rank) {
this.rank = rank;
}
}
This is my jsf page
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:body>
<ui:composition template="/facelet/layout/mainlayout.xhtml">
<ui:define name="content">
<h:form>
<div align="left">
<h:outputText value="Staff Number: " />
<h:inputText id="staffnum" size="6" value="# {objcetMapBean.searchCrewParam.staffNum}" />
<h:outputText value="Surname: " />
<h:inputText id="surname" size="10" maxlength="25" value="# {objcetMapBean.searchCrewParam.surName}" />
<h:outputText value="Rank: " />
<h:inputText id="rank" size="3" value="#{objcetMapBean.searchCrewParam.rank}" />
<h:commandButton value="Search" action="#{objcetMapBean.search}" />
</div>
</h:form>
</ui:define>
</ui:composition>
</h:body>
</html>
We can use h:dataTable from jsf tag and map easily.
http://www.mkyong.com/jsf2/jsf-2-datatable-example/
This is my xhtml code :
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Custom Radio Test</title>
</h:head>
<h:body>
<h:form id="mF" >
<p:selectOneRadio id="ITRadioGrp" value="#{testBean.radioSelectedValue}" layout="custom">
<f:selectItems value="#{testBean.selectItems}" />
</p:selectOneRadio>
<h:panelGrid columns="1">
<ui:repeat id="vBGOF" value="#{testBean.groupOfFlights}" var="aFlight" varStatus="gofIndex">
<p:radioButton for="ITRadioGrp" itemIndex="#{gofIndex.index}"/> #{aFlight}
</ui:repeat>
</h:panelGrid>
</h:form>
</h:body>
</html>
and this is the managed bean :
package com.modern;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.model.SelectItem;
import java.util.*;
#ManagedBean
#RequestScoped
public class TestBean {
private String radioSelectedValue;
private String[] groupOfFlights;
private List selectItems;
public TestBean() {
groupOfFlights = new String[]{"FlightOne", "FlightTwo", "FlightThree"};
}
public String[] getGroupOfFlights() {
return groupOfFlights;
}
public void setGroupOfFlights(String[] groupOfFlights) {
this.groupOfFlights = groupOfFlights;
}
public String getRadioSelectedValue() {
return radioSelectedValue;
}
public void setRadioSelectedValue(String radioSelectedValue) {
this.radioSelectedValue = radioSelectedValue;
}
// modified
public List getSelectItems() {
try {
if (selectItems == null || selectItems.isEmpty()) {
selectItems = new ArrayList();
for (int g = 0; g < 3; g++) {
SelectItem option = new SelectItem(g, "flight" + (g + 1)); // value, label
selectItems.add(option);
}
}
} catch (Exception e) {
System.out.println(this.getClass().getName() + "] EXCEPTION " + e.toString());
}
return selectItems;
}
public void setSelectItems(List selectItems) {
this.selectItems = selectItems;
}
}
I always get the same error :
Cannot find component 'mF:ITRadioGrp' in view.
javax.faces.FacesException: Cannot find component 'mF:ITRadioGrp' in view.
at org.primefaces.component.radiobutton.RadioButtonRenderer.findSelectOneRadio(RadioButtonRenderer.java:144)
at org.primefaces.component.radiobutton.RadioButtonRenderer.encodeEnd(RadioButtonRenderer.java:35)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1763)
at com.sun.faces.facelets.component.RepeatRenderer.encodeChildren(RepeatRenderer.java:104)
at com.sun.faces.facelets.component.UIRepeat.process(UIRepeat.java:513)
at com.sun.faces.facelets.component.UIRepeat.encodeChildren(UIRepeat.java:974)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:304)
at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1756)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1756)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:401)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
I've tried to change the "for" attribute in
<p:radioButton for="mF:ITRadioGrp" itemIndex="#{gofIndex.index}"/> #{aFlight}
to (i checked the HTML source deleting the layout=custom" in p:selectOneRadio) :
mF:ITRadioGrp
ITRadioGrp
mF:ITRadioGrp:0
mF:ITRadioGrp:1 ...
but always same error!!
where i'm wrong???
Thanks!
Use a colon as prefix in order to address the p:selectOneRadio beginning from the view root:
<p:radioButton for=":mF:ITRadioGrp" itemIndex="#{gofIndex.index}"/>
If this does not work, look into the html source of your page in browser and find the correct client id for the p:selectOneRadio. Use this id in your for attribute.