Jsf managed beans
I am new to jsf so i want to know difference between managed bean and Back end bean. and when jsf creates instance of these beans.
how JSF read faces- config.xml file
@cbonneau
First, I must admit I didn't fully understand you.
Now, as for your question, managed beans are used to execute some business logic, like methods that you want to run when a form is submitted, or to hold some data that your page needs to access etc.
Model beans represent a domain object from your domain model. If you make an application used by a car rental agency, you'd probably have a model bean that represents a car.
And controller beans... well... I have no idea what could you mean by that :)
As for the MVC pattern, JSF more-or-less forces you to comply with it, so not much for you to do there.
And if you want a sample application, google a bit, you'll find plenty.
Similar Messages
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Manipulate a payload inside a JSF Managed Bean
Hello guys,
Does someone know how can I consume programatically a human task payload inside a JSF Managed Bean?
Let we say that I need to extract some information from a payload to consume a service... After that, depending on the result, I update the payload with some data from the service to show to the user. Is that possible?
Any help would be greatly appreciated.
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@EJB annotation in JSF managed beans not working
Hi all,
I've been trying to get the @EJB annotation to work in a JSF manged bean without success.
The EJB interface is extremely simple:
package model;
import javax.ejb.Local;
@Local
public interface myEJBLocal {
String getHelloWorld();
void setHelloWorld(String helloWorld);
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package model;
import javax.ejb.Stateless;
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public class myEJBBean implements myEJBLocal {
public String helloWorld;
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When I try to use the above EJB in a managed bean, I only get a NullPointerException when oc4j tries to instantiate my managed bean. The managed bean looks like:
package view.backing;
import javax.ejb.EJB;
import model.myEJBLocal;
import model.myEJBBean;
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private static myEJBLocal myBean;
private String helloWorld;
private String helloWorldFromBean;
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helloWorld = "Hello from view.backing.Hello!";
helloWorldFromBean = myBean.getHelloWorld();
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return helloWorld;
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Am I missing something fundamentally here? Aren't you supposed to be able to use an EJB from a JSF managed bean?
Thanks,
ErikWell, the more I research this issue, the more confused I get. There have been a couple of threads discussing this already, and in this one Debu Panda states that:
"Support of injection in JSF managed bean is part of JSF 1.1 and OC4J 10.1.3.1 does not support JSF 1.1"
10.1.3.1 Looking up a session EJB with DI from the Web tier
But if you look in the release notes for Oracle Application Server 10g R3, it is explicitly stated that JSF 1.1. is supported. So I'm not sure what to believe.
I've also tried changing the version in web.xml as described here:
http://forums.java.net/jive/thread.jspa?threadID=2117
but that didn't help either.
I've filed a SR on Metalink for this, but haven't got any response yet.
Regards,
Erik -
JSF managed beans and xmlbeans
Hi,
I am having a jsf application,where I get data from a back end configuration service,which returns data in the form of xml,for which we already have compiled xmlbeans.At our side we recieve the response and parse it to get back the response.My question is- Is it advisable to use these xmlbeans within the jsf managed beans,or do we need to create pojos from the xmlbeans,before sending them to mbeans.Why I am asking such a question is-xmlbeans have a tight coupling with the backend
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1) You man not need everything from the XMLBean always. Most of the times, you may need very little from the XMLBean. You can transfer the required information to the POJO. This would also save you from network overhead in case the backend is running on a separate machine.
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JSF managed beans Vs Enterprise beans
Hi friends,
what are the advantages/disadvantages of using enterprise beans/ JSF managed beans over JSF managed beans/Enterprise beans
regards
sanThe primary difference between managed bean and enterprise bean is : enterprise bean will avail all the services provided by EJB container. where as managed bean cant avail all these.
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Problems integrating JSF managed bean with Session EJB with JDeveloper
HI All,
I am developeing a JSF-EJB application using Jdeveloper11g. On deploying the application I am getting the following errors on deployment.
<19/08/2010 2:53:49 PM EST> <Error> <Deployer> <BEA-149265> <Failure occurred in the execution of deployment request with ID '1282193629318' for task '17'. Error is: 'weblogic.application.ModuleException: Could not setup environment'
weblogic.application.ModuleException: Could not setup environment
at weblogic.servlet.internal.WebAppModule.activateContexts(WebAppModule.java:1499)
at weblogic.servlet.internal.WebAppModule.activate(WebAppModule.java:442)
at weblogic.application.internal.flow.ModuleStateDriver$2.next(ModuleStateDriver.java:375)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:41)
at weblogic.application.internal.flow.ModuleStateDriver.activate(ModuleStateDriver.java:95)
Truncated. see log file for complete stacktrace
Caused By: weblogic.deployment.EnvironmentException: [J2EE:160101]Error: The ejb-link 'MetaDataBean' declared in the ejb-ref or ejb-local-ref 'MetaData' in the application module 'ViewControllerWebApp.war' could not be resolved. The target EJB for the ejb-ref could not be found. Please ensure the link is correct.
at weblogic.deployment.BaseEnvironmentBuilder.addEJBLinkRef(BaseEnvironmentBuilder.java:453)
at weblogic.deployment.EnvironmentBuilder.addEJBReferences(EnvironmentBuilder.java:485)
at weblogic.servlet.internal.CompEnv.activate(CompEnv.java:157)
at weblogic.servlet.internal.WebAppServletContext.activate(WebAppServletContext.java:3117)
at weblogic.servlet.internal.WebAppModule.activateContexts(WebAppModule.java:1497)
Truncated. see log file for complete stacktrace
>
<19/08/2010 2:53:49 PM EST> <Error> <Deployer> <BEA-149202> <Encountered an exception while attempting to commit the 1 task for the application 'data-catalog'.>
<19/08/2010 2:53:49 PM EST> <Warning> <Deployer> <BEA-149004> <Failures were detected while initiating deploy task for application 'data-catalog'.>
<19/08/2010 2:53:49 PM EST> <Warning> <Deployer> <BEA-149078> <Stack trace for message 149004
weblogic.application.ModuleException: Could not setup environment
at weblogic.servlet.internal.WebAppModule.activateContexts(WebAppModule.java:1499)
at weblogic.servlet.internal.WebAppModule.activate(WebAppModule.java:442)
at weblogic.application.internal.flow.ModuleStateDriver$2.next(ModuleStateDriver.java:375)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:41)
at weblogic.application.internal.flow.ModuleStateDriver.activate(ModuleStateDriver.java:95)
Truncated. see log file for complete stacktrace
Caused By: weblogic.deployment.EnvironmentException: [J2EE:160101]Error: The ejb-link 'MetaDataBean' declared in the ejb-ref or ejb-local-ref 'MetaData' in the application module 'ViewControllerWebApp.war' could not be resolved. The target EJB for the ejb-ref could not be found. Please ensure the link is correct.
at weblogic.deployment.BaseEnvironmentBuilder.addEJBLinkRef(BaseEnvironmentBuilder.java:453)
at weblogic.deployment.EnvironmentBuilder.addEJBReferences(EnvironmentBuilder.java:485)
at weblogic.servlet.internal.CompEnv.activate(CompEnv.java:157)
at weblogic.servlet.internal.WebAppServletContext.activate(WebAppServletContext.java:3117)
at weblogic.servlet.internal.WebAppModule.activateContexts(WebAppModule.java:1497)
Truncated. see log file for complete stacktrace
Thanks
Edited by: user5108636 on 18/08/2010 22:46Please find attached the source code of JSF managed bean, local business interface, session bean and web.xml
MANAGED BEAN_
package view.backing;
import java.util.List;
import javax.ejb.EJB;
import javax.faces.component.UISelectItems;
import javax.faces.component.html.HtmlSelectManyListbox;
import model.ejb.session.MetaDataBean;
public class SearchMetaDataBean {
@EJB MetaDataBean metaDataService;
private List<String> tables;
private List<String> columns;
private HtmlSelectManyListbox selectManyListbox1;
private UISelectItems selectItems1;
public void setTables(List<String> tables) {
this.tables = tables;
public List<String> getTables() {
return metaDataService.getTables();
public void setColumns(List<String> columns) {
this.columns = columns;
public List<String> getColumns() {
return columns;
public void setSelectManyListbox1(HtmlSelectManyListbox selectManyListbox1) {
this.selectManyListbox1 = selectManyListbox1;
public HtmlSelectManyListbox getSelectManyListbox1() {
return selectManyListbox1;
public void setSelectItems1(UISelectItems selectItems1) {
this.selectItems1 = selectItems1;
public UISelectItems getSelectItems1() {
return selectItems1;
LOCAL INTERFACE_
package model.ejb.session;
import java.util.List;
import javax.ejb.Local;
@Local
public interface MetaDataLocal {
public List<String> getTables();
public List<String> getColumns(String tableName);
SESSION BEAN_
package model.ejb.session;
import javax.ejb.Local;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.ejb.Stateless;
import javax.sql.DataSource;
@Stateless(name="MetaData")
@Local
public class MetaDataBean implements MetaDataLocal{
@Resource(name="jdbc/DWDS")
private DataSource dataSource;
private Connection connection;
private List<String> tables = new ArrayList<String>();
private List<String> columns = new ArrayList<String>();
private DatabaseMetaData dmd;
@PostConstruct
public void initialize(){
try{
connection = dataSource.getConnection();
DatabaseMetaData dmd;
dmd = connection.getMetaData();
}catch(SQLException sqle){
sqle.printStackTrace();
public MetaDataBean() {
public List<String> getTables(){
try{
if (dmd ==null){
//System.out.println("Database meta data not available");
tables.add("None");
}else{
ResultSet rs = dmd.getSchemas();
ResultSet rs1 = null;
while(rs.next()) {
if (rs.getString(1).equalsIgnoreCase("AV_DATA")){
rs1 = dmd.getTables(null,rs.getString(1),"%",null);
while(rs1.next()) {
tables.add(rs1.getString(3));
}catch (SQLException sqle){
sqle.printStackTrace();
return tables;
public List<String> getColumns(String tableName){
try{
ResultSet rsColumns = dmd.getColumns("", "AV_DATA", tableName, null);
while(rsColumns.next()){
columns.add(rsColumns.getString(4));
}catch (SQLException sqle){
sqle.printStackTrace();
return columns;
WEB.XML_
<?xml version = '1.0' encoding = 'windows-1252'?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5" xmlns="http://java.sun.com/xml/ns/javaee">
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<ejb-local-ref>
<ejb-ref-name>MetaData</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local>model.ejb.session.MetaDataLocal</local>
<ejb-link>MetaDataBean</ejb-link>
</ejb-local-ref>
</web-app>
Edited by: user5108636 on 18/08/2010 22:45
Edited by: user5108636 on 18/08/2010 22:46 -
Invoking Web Service from JSF Managed Bean
Hi all,
I am trying to invoke a webservice from Managed Bean and getting an exception.
Server : WAS 6.1.0.2
Version :JSF 1.2
Type of WS Invocation : JAX-WS web services
IDE : RAD 7.0.0
I have set up the class path correctly and added relevant WS Client in EAR ....
Following is the exception am receiving :
[8/31/11 7:59:25:335 EDT] 0000002d WebApp E [Servlet Error]-[Faces Servlet]: javax.faces.el.EvaluationException: java.lang.NoClassDefFoundError: org.example.www.Sample_PortType
at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:170)
at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:123)
at javax.faces.component.UIOutput.getValue(UIOutput.java:147)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:84)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:204)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:171)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:754)
at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:627)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:550)
at com.sun.faces.taglib.html_basic.InputTextareaTag.doEndTag(InputTextareaTag.java:651)
at com.ibm._jsp._sample._jspx_meth_h_inputTextarea_0(_sample.java:107)
at com.ibm._jsp._sample._jspx_meth_h_form_0(_sample.java:149)
at com.ibm._jsp._sample._jspx_meth_f_view_0(_sample.java:180)
at com.ibm._jsp._sample._jspService(_sample.java:77)
at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:85)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:972)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463)
at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:115)
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:168)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:308)
at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:325)
at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:249)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:239)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:972)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3129)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:238)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:93)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:394)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:274)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:152)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:213)
at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.java:195)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510)
Caused by: java.lang.NoClassDefFoundError: org.example.www.Sample_PortType
at java.lang.J9VMInternals.verifyImpl(Native Method)
at java.lang.J9VMInternals.verify(J9VMInternals.java:59)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:120)
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1263)
at java.beans.Beans.instantiate(Beans.java:219)
at java.beans.Beans.instantiate(Beans.java:63)
at com.sun.faces.config.ManagedBeanFactory.newInstance(ManagedBeanFactory.java:226)
at com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:291)
at com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:81)
at com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:125)
at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:146)
at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:249)
at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:140)
Thanks in advance ..
Steve BobNo you haven't, because
Caused by: java.lang.NoClassDefFoundError: org.example.www.Sample_PortType a relevant class can still not be found and Java really is not going to lie to you; this class is not on your application's classpath so it is either missing or put in the wrong place. Note that missing classes can be caused by you forgetting to properly redeploying your application - its usually something silly like that. Figure out what you did wrong and correct your mistake.
The fact that you have to mention that you "setup the classpath" is questionable; in web applications you don't touch the classpath at all. So what exactly did you do? -
Share stateful session bean in JSF managed beans with different scope
Hi,
I have a JSF application and I want to try to use of stateful session beans.
So I created a new stateful session bean and its local interface.
@Stateful
public class StatefulSessionBean implements StatefulSessionBeanLocalInterface{
private String name;
@Local
public interface StatefulSessionBeanLocalInterface {
...In my JSF application I have a mananed bean with session context which registers the new interface by
this annotation
@EJB(name="sessionbeanref", beanInterface=StatefulSessionBeanLocalInterface.class) and set the name to something.
Now I want to fetch this name in another managed bean with request scope. So I looked up the bean and tried to get the name.
StatefulSessionBeanLocalInterface = (StatefulSessionBeanLocalInterface) new InitialContext().lookup("java:comp/env/sessionbeanref");
System.out.println(currentmailingbean.getName());but the name is null.
Why?The xsd was created via the netbeans J2EE enterprise application dialog and I think its the most recent.
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">All other annotations seem to work.
Wouldnt the lookup completely fail if the deployment process thought that it is version 1.4 ? -
How can i get the realpath of my web application in jsf manage bean
in jsp, i can use application.getRealPath("/")
but in jsf how can i get the realpath in manage bean and initializean variable.
thanksFacesContext aFacesContext = FacesContext.getCurrentInstance();
ServletContext context = (ServletContext)aFacesContext.getExternalContext().getContext();
String rootpath = context.getRealPath("/");
i use the code like that ,it can work , but when i click a button in my web page and call a function of java bean to read a file in "rootpath" , only odd number click it do well , even number click it do nothing and navigate to a blank page.
how can i do that ,.
my english is too pool ,sorry. -
JSF - Managed Beans instantiate Beans?
Hi, I�m new in JSF. I�d like to know if there is any way to configure in faces-config.xml a way to make a bean to be instantiate within do it explicity in the managed bean class.
Let me explain better, I have a form with two fields, login and password. I have a Bean called "User", with this two attributes and others. When I click on the commandButton, a method in the managed ben is called. What a wanna know is: do I have to declare the same bean�s attributes in the managed bean, generating gets and setters methods or there is a way to do this in the faces-config.xml?
Thanks.I guess what you want to do is something like as follows:
(jsp file)<h:inputText value="#{managedBean.user.login}"/>(faces-config.xml) <managed-bean>
<managed-bean-name>managedBean</managed-bean-name>
<managed-bean-class>ManagedBean</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
<managed-property>
<property-name>user</property-name>
<value>#{userBean}</value>
</managed-property>
</managed-bean>
<managed-bean>
<managed-bean-name>userBean</managed-bean-name>
<managed-bean-class>User</managed-bean-class>
<managed-bean-scope>none</managed-bean-scope>
</managed-bean> -
Hello,
Number of beans in my project are growing like anything, and i need some way to manage them.
Can anybody please suggest, is there any way i can divide the file into multiple logical files??
I mean, write my beans in multiple files, rather than putting all of them in a single file.
Thanks,
Bhanwar GuptaIn the web.xml, use the javax.faces.CONFIG_FILES initialization parameter to specify a comma separated list of JSF configuration files.
-
Action / actionListener in h:commandButton with managed beans
I have a problem with a backing bean whose method is not invoked when i click it. I've seen some posts on here about this yet, I still don't understand what I am doing wrong, if anything.
Some context...I've modeled my application after 'jcatalog' from this article:
http://www.javaworld.com/javaworld/jw-07-2004/jw-0719-jsf.html . It's simpler than the article -- I'm not using Spring/Hibernate and the persistence is the file system. For each business object (Resource), there's a backing bean (ResourceBean).
In short, I can't get the backing bean to respond to the button event for 'Add' bound to addAction. This is just like the jcatalog 'createProduct' impl -- which doesn't use the (FacesEvent fe ) approach.
Anyway, I would appreciate anyone's help to get past this.
-Lorinda
(Below are the codes...)
Here's my beans-config.xml:
<!-- view -->
<managed-bean>
<description>
Managed bean that is used as an application scope cache
</description>
<managed-bean-name>applicationBean</managed-bean-name>
<managed-bean-class>
com.intalio.qa.tcm.view.beans.ApplicationBean
</managed-bean-class>
<managed-bean-scope>application</managed-bean-scope>
<managed-property>
<property-name>viewServicesManager</property-name>
<value>#{viewServicesManagerBean}</value>
</managed-property>
</managed-bean>
<managed-bean>
<description>
View service manager impl for business services
</description>
<managed-bean-name>viewServicesManagerBean</managed-bean-name>
<managed-bean-class>
com.intalio.qa.tcm.view.beans.ViewServicesManagerBean
</managed-bean-class>
<managed-bean-scope>application</managed-bean-scope>
</managed-bean>
<managed-bean>
<description>
Backing bean that contains product information.
</description>
<managed-bean-name>resourceBean</managed-bean-name>
<managed-bean-class>
com.intalio.qa.tcm.view.beans.ResourceBean
</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
(Note, the applicationBean uses view services manager. The manager is used by the ResourceBean. (It's initialized by the h:output dummy variable reference at the top of my .jsp page)). I can see the initialization in the debug trace.
Here's the resource bean:
import java.util.ArrayList;
import java.util.List;
import javax.faces.FacesException;
import javax.faces.model.SelectItem;
import com.intalio.qa.exceptions.DuplicateIdException;
import com.intalio.qa.exceptions.TCMException;
import com.intalio.qa.tcm.model.Resource;
import com.intalio.qa.tcm.view.builders.ResourceBuilder;
import com.intalio.qa.tcm.view.util.FacesUtils;
* Resource backing bean.
public class ResourceBean extends RootBean {
* The Resource id
private String id;
* The Resource name
private String name;
* Description
private String description;
* the resource type id associated with the Resource
private String resourceTypeId;
// the resource type id associated with the Resource
private List resourceTypeIds;
* @return Returns the resourceTypeIds.
public List getResourceTypeIds() {
return resourceTypeIds;
* @param resourceTypeIds The resourceTypeIds to set.
public void setResourceTypeIds(List resourceTypeIds) {
this.resourceTypeIds = resourceTypeIds;
* Default constructor.
public ResourceBean() {
super();
init();
* Initializes ResourceBean.
* @see RootBean#init()
protected void init() {
try {
LOG.info("ResourceBean init()");
if (id != null) {
Resource resource = viewServicesManager.getResourceService().getResourceById(id);
ResourceBuilder.populateResourceBean(this, resource);
} catch (TCMException ce) {
String msg = "Could not retrieve Resource with id of " + id;
LOG.info(msg, ce);
throw new FacesException(msg, ce);
* Backing bean action to update Resource.
* @return the navigation result
public String updateAction() {
LOG.info("updateAction is invoked");
try {
// Resource Resource = ResourceBuilder.createResource(this);
// LOG.info("ResourceId = " + Resource.getId());
// viewServicesManager.getResourceService().updateResource(Resource);
//remove the ResourceList inside the cache
//FacesUtils.resetManagedBean(BeanNames.RESOURCE_LIST_BEAN);
} catch (Exception e) {
String msg = "Could not update Resource";
LOG.error(msg, e);
FacesUtils.addErrorMessage(msg + ": Internal Error.");
return NavigationResults.FAILURE;
LOG.info("Resource with id of " + id + " was updated successfully.");
return NavigationResults.SUCCESS;
* Backing bean action to create a new Resource.
* @return the navigation result
public String addAction() {
LOG.info("addAction is invoked");
try {
Resource resource = ResourceBuilder.createResource(this);
LOG.info("between");
viewServicesManager.getResourceService().saveResource(resource);
} catch (DuplicateIdException de) {
String msg = "This id already exists";
LOG.info(msg);
FacesUtils.addErrorMessage(msg);
return NavigationResults.RETRY;
} catch (Exception e) {
String msg = "Could not save Resource";
LOG.error(msg, e);
FacesUtils.addErrorMessage(msg + ": Internal Error");
return NavigationResults.FAILURE;
String msg = "Resource with id of " + id + " was created successfully.";
LOG.info(msg);
return NavigationResults.SUCCESS;
* Backing bean action to delete Resource.
* @return the navigation result
public String deleteAction() {
LOG.info("deleteAction is invoked");
try {
// Resource Resource = ResourceBuilder.createResource(this);
// viewServicesManager.getResourceService().deleteResource(Resource);
//remove the ResourceList inside the cache
// FacesUtils.resetManagedBean(BeanNames.RESOURCE_LIST_BEAN);
} catch (Exception e) {
String msg = "Could not delete Resource. ";
LOG.error(msg, e);
FacesUtils.addErrorMessage(null, msg + "Internal Error.");
return NavigationResults.FAILURE;
String msg = "Resource with id of " + id + " was deleted successfully.";
LOG.info(msg);
FacesUtils.addInfoMessage(msg);
return NavigationResults.SUCCESS;
public String getId() {
return id;
* Invoked by the JSF managed bean facility.
* <p>
* The id is from the request parameter.
* If the id is not null, by using the id as the key,
* the Resource bean is initialized.
* @param newQueryId the query id from request parameter
public void setId(String newId) {
id = newId;
public String getName() {
return name;
public void setName(String newName) {
name = newName;
public String getDescription() {
return description;
public void setDescription(String newDescription) {
description = newDescription;
public String getResourceTypeId() {
return resourceTypeId;
public void setResourceTypeId(String newResourceTypeId) {
resourceTypeId = newResourceTypeId;
public String toString() {
return "id=" + id + " name=" + name;
Here's the jsp:
<f:subview id="resourcesCombinedView_subview">
<h:form id="createResourceForm" target="dataFrame">
<h:outputText value="#{applicationBean.dummyVariable}" rendered="true" />
<div align="center">
<head>
<link href="../../css/stylesheet.css" rel="stylesheet" type="text/css">
<FONT color="#191970" size="4" face="Arial">Resources View</FONT>
</head>
<table style="margin-top: 2%" width="35%" cellpadding="10">
<div align="left">
<FONT color="#191970" size="3" face="Arial">Update Resources </FONT>
</div>
<tr>
<td align="center" valign="top" align="center" style="" bgcolor="white" />
<table>
<tbody>
<tr>
<td align="left" styleClass="header" width="100" />
<td align="left" width="450"/>
</tr>
<tr>
<td align="right" width="100"><h:outputText value="Id" /></td>
<td align="left" width="450"><h:inputText
value="#{resourceBean.id}" id="id" required="true" /> <h:message
for="id" styleClass="errorMessage" /></td>
</tr>
<tr>
<td align="right" width="100"><h:outputText value="Name" /></td>
<td align="left" width="450"><h:inputText
value="#{resourceBean.name}" id="name" required="true" /> <h:message
for="name" styleClass="errorMessage" /></td>
</tr>
<tr>
<td align="right" width="100" valign="bottom"><h:outputText
value="Type" /></td>
<td align="left" width="550">
<h:selectOneMenu
value="#{resourceBean.resourceTypeId}" id="resourceTypeId">
<f:selectItem itemValue="" itemLabel="Select Resource Type" />
<f:selectItem itemValue="database" itemLabel="Database" />
<f:selectItem itemValue="external application"
itemLabel="External Application" />
<f:selectItem itemValue="internal"
itemLabel="Intalio|n3 Products" />
<f:selectItem itemValue="os" itemLabel="Operating System" />
</h:selectOneMenu> <h:outputText
value="#{resourceBean.resourceTypeId}" /> <h:message
for="resourceTypeId" styleClass="errorMessage" /></td>
</tr>
<tr>
<td align="right" width="100" valign="bottom"><h:outputText
value="Description" /></td>
<td align="left" width="450"><h:inputText
value="#{resourceBean.description}" id="description" size="96" />
<h:message for="description" styleClass="errorMessage" /></td>
</tr>
</tbody>
</table>
</h:form></td>
<!-- END DATA FORM -->
<!-- BEGIN COMMANDS -->
<td width="30%" align="left" valign="top"><h:form
id="buttonCommandsForm">
<h:panelGroup id="buttons">
<h:panelGrid columns="1" cellspacing="1" cellpadding="2"
border="0" bgcolor="white">
<h:commandButton value="Add"
style="height:21px; width:51px;font-size:8pt; font-color: black;"
actionListener="#{resourceBean.addAction}">
</h:commandButton>
<h:commandButton id="deleteCB" value="Delete"
style="height:21px; width:51px;font-size:8pt"
action="#{resourceBean.deleteAction}">
</h:commandButton>
<h:commandButton id="spaceFillerButton" tabindex="-1"
style="height:21px; width:51px;font-size:8pt;background-color: #ffffff;color: #ffffff;border: 0px;">
</h:commandButton>
<h:commandButton id="saveCB" value="Save"
style="height:21px; width:51px;font-size:8pt"
actionListener="#{resourceBean.saveAction}">
</h:commandButton>
<h:commandButton id="updateCB" value="Update"
style="height:21px; width:51px;font-size:8pt"
actionListener="#{resourceBean.updateAction}">
</h:commandButton>
</h:panelGrid>
</h:panelGroup>
</h:form> <!-- end buttons --></td>
</tr>
</table>
<HR align="center" size="2" width="60%" />
<!-- data table --></div>
</f:subview>Hey, anyway, have you note your jsp reference to the backing bean begins with a lowercase letter, and your backing bean class name begins with an uppercase letter?? I think that's it... I think, cause I'm too unexperienced in JSF.... Bye!!
-
Urgent - can't set managed bean value using a form, getting null
I have a form with a bean -- unbelievably, I can't get the values entered into the form by the user to get stored into the bean. Everything is null... I've looked at a zillion examples, posts and compared etc...yet still can't see what is missing.
Here's part of a trace :
[cc]Dec-31 01:25:02 ApplicationImpl - Created bean resourceBean successfully
[cc]Dec-31 01:25:02 ApplicationImpl - Storing resourceBean in scope request
[cc]Dec-31 01:25:02 VariableResolverImpl - resolveVariable: Resolved variable:id=null name=null
[cc]Dec-31 01:25:02 ValueBindingImpl - getValue Result:id=null name=null
[cc]Dec-31 01:25:02 ValueBindingImpl - -->Returning id=null name=null
If you have any ideas, please let me know--it seems just as I solve one JSF issue, I run into another on unexpectedly simple things.
Here's the ResourceBean.java, the bean-config.xml and my jsp.
package com.intalio.qa.tcm.view.beans;
import java.util.Map;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import org.apache.log4j.Logger;
import com.intalio.qa.exceptions.DuplicateIdException;
import com.intalio.qa.tcm.model.Resource;
import com.intalio.qa.tcm.view.builders.ResourceBuilder;
import com.intalio.qa.tcm.view.util.FacesUtils;
* Resource backing bean.
public class ResourceBean extends RootBean {
* Class logger
public static final Logger LOG =
Logger.getLogger(ResourceBean.class);
* The Resource id
private String id = null;
* The Resource name
private String name = null;
* Description
private String description= null;
* the resource type id associated with the Resource
private String resourceTypeId= null;
private static SelectItem[] resourceTypeIds = new SelectItem[] {
new SelectItem("External Software"),
new SelectItem("Hardware"),
new SelectItem("Intalio Product Software"),
new SelectItem("Machine - Dual CPU"),
new SelectItem("Machine - CPU Single"),
new SelectItem("Memory - UNIX"),
new SelectItem("Memory - Windows") };
* @return Returns the resourceTypeIds.
public SelectItem[] getResourceTypeIds() {
return resourceTypeIds;
* @param resourceTypeIds The resourceTypeIds to set.
public void setResourceTypeIds(SelectItem[] typeIds) {
resourceTypeIds = typeIds;
* Default constructor.
public ResourceBean() {
super();
init();
* Initializes ResourceBean.
* @see RootBean#init()
protected void init() {
/*True, but I'd strongly recommend instead using:
FacesContext fContext = FacesContext.getCurrentInstance();
Map requestParams = fContext.getExternalContext().getRequestParameterMap();
String companyId = (String) requestParams.get("companyID");
The getRequest(), getSession(), and getContext() methods of ExternalContext should only be used as a last resort.*/
* Backing bean action to update Resource.
* @return the navigation result
public String updateAction() {
LOG.info("updateAction is invoked");
try {
Resource Resource = ResourceBuilder.createResource(this);
LOG.info("ResourceId = " + Resource.getId());
// viewServicesManager.getResourceService().updateResource(Resource);
} catch (Exception e) {
String msg = "Could not update Resource";
LOG.error(msg, e);
FacesUtils.addErrorMessage(msg + ": Internal Error.");
return ActionResult.FAILURE;
LOG.info("Resource with id of " + id + " was updated successfully.");
return ActionResult.SUCCESS;
* Backing bean action to create a new Resource.
* @return the navigation result
public String addAction() {
try {
Resource resource = ResourceBuilder.createResource(this);
LOG.info("resource created: " + resource.getName() + " with typeId = " + resource.getResourceTypeId());
viewServicesManager.getResourceService().saveResource(resource);
} catch (DuplicateIdException de) {
String msg = "This id already exists";
LOG.info(msg);
FacesUtils.addErrorMessage(msg);
return ActionResult.RETRY;
} catch (Exception e) {
String msg = "Could not save Resource";
LOG.error(msg, e);
FacesUtils.addErrorMessage(msg + ": Internal Error");
return ActionResult.FAILURE;
String msg = "Resource with id of " + id + " was created successfully.";
LOG.info(msg);
return ActionResult.SUCCESS;
* Backing bean action to delete Resource.
* @return the navigation result
public String deleteAction() {
LOG.info("deleteAction is invoked");
try {
// Resource Resource = ResourceBuilder.createResource(this);
// viewServicesManager.getResourceService().deleteResource(Resource);
//remove the ResourceList inside the cache
// FacesUtils.resetManagedBean(BeanNames.RESOURCE_LIST_BEAN);
} catch (Exception e) {
String msg = "Could not delete Resource. ";
LOG.error(msg, e);
FacesUtils.addErrorMessage(null, msg + "Internal Error.");
return ActionResult.FAILURE;
String msg = "Resource with id of " + id + " was deleted successfully.";
LOG.info(msg);
FacesUtils.addInfoMessage(msg);
return ActionResult.SUCCESS;
public String getId() {
return id;
* Invoked by the JSF managed bean facility.
* <p>
* The id is from the request parameter.
* If the id is not null, by using the id as the key,
* the Resource bean is initialized.
* @param newQueryId the query id from request parameter
public void setId(String newId) {
LOG.info("setId " + newId);
id = newId;
public String getName() {
return name;
public void setName(String newName) {
name = newName;
public String getDescription() {
return description;
public void setDescription(String newDescription) {
description = newDescription;
public String getResourceTypeId() {
return resourceTypeId;
public void setResourceTypeId(String newResourceTypeId) {
resourceTypeId = newResourceTypeId;
public String toString() {
return "id=" + id + " name=" + name;
<!-- view -->
<managed-bean>
<description>
Managed bean
</description>
<managed-bean-name>applicationBean</managed-bean-name>
<managed-bean-class>
com.intalio.qa.tcm.view.beans.ApplicationBean
</managed-bean-class>
<managed-bean-scope>application</managed-bean-scope>
<managed-property>
<property-name>viewServicesManager</property-name>
<value>#{viewServicesManagerBean}</value>
</managed-property>
</managed-bean>
<managed-bean>
<description>
View service manager impl for business services
</description>
<managed-bean-name>viewServicesManagerBean</managed-bean-name>
<managed-bean-class>
com.intalio.qa.tcm.view.beans.ViewServicesManagerBean</managed-bean-class>
<managed-bean-scope>application</managed-bean-scope>
</managed-bean>
<managed-bean>
<description>
Backing bean that contains product information.
</description>
<managed-bean-name>resourceBean</managed-bean-name>
<managed-bean-class>
com.intalio.qa.tcm.view.beans.ResourceBean
</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
<managed-property>
<property-name>viewServicesManager</property-name>
<value>#{viewServicesManagerBean}</value>
</managed-property>
</managed-bean>
</faces-config>
<f:view>
<h:form id="createResourceForm" target="dataFrame">
<h:outputText value="#{applicationBean.dummyVariable}" rendered="true" />
<div align="center">
<head>
<link href="../../css/stylesheet.css" rel="stylesheet" type="text/css">
<FONT color="#191970" size="4" face="Arial">Resources View</FONT>
</head>
<table style="margin-top: 2%" width="35%" cellpadding="10">
<div align="left">
<FONT color="#191970" size="3" face="Arial">Update Resources </FONT>
</div>
<tr>
<td align="center" valign="top" align="center" style="" bgcolor="white" />
<table>
<tbody>
<tr>
<td align="left" styleClass="header" width="100" />
<td align="left" width="450" />
</tr>
<tr>
<td align="right" width="100"><h:outputText value="Id" /></td>
<td align="left" width="450"><h:inputText value="#{resourceBean.id}" id="id"/> <h:message for="id" styleClass="errorMessage" /></td>
</tr>
<tr>
<td align="right" width="100"><h:outputText value="Name" /></td>
<td align="left" width="450"><h:inputText value="#{resourceBean.name}" id="name" /> <h:message for="name" styleClass="errorMessage" /></td>
</tr>
<tr>
<!--td align="right" width="100" valign="bottom"><h:outputText value="Type" /></td>
<td align="left" width="550"><h:selectOneMenu>
<f:selectItems value="#{resourceBean.resourceTypeIds}" />
</h:selectOneMenu> <h:outputText value="#{resourceBean.resourceTypeId}" id="dresourceTypeId" /> <h:message for="resourceTypeId" styleClass="errorMessage" />
</td>
</tr>
<tr>
<td align="right" width="100" valign="bottom"><h:outputText value="Description" /></td>
<td align="left" width="450"><h:inputText value="#{resourceBean.description}" id="description" size="96" /> <h:message for="description" styleClass="errorMessage" /></td>
</tr>
</tbody>
</table>
</h:form>
</td>
<!-- END DATA FORM -->
<!-- BEGIN COMMANDS -->
<td width="30%" align="left" valign="top"><h:form id="buttonCommandsForm">
<h:panelGroup id="buttons">
<h:panelGrid columns="1" cellspacing="1" cellpadding="2" border="0" bgcolor="white">
<h:commandButton value="Add" style="height:21px; width:51px;font-size:8pt; font-color: black;" action="#{resourceBean.addAction}">
</h:commandButton>
<h:commandButton id="deleteCB" value="Delete" style="height:21px; width:51px;font-size:8pt" action="#{resourceBean.deleteAction}">
</h:commandButton>
<h:commandButton id="spaceFillerButton" style="height:21px; width:51px;font-size:8pt;background-color: #ffffff;color: #ffffff;border: 0px;">
</h:commandButton>
<h:commandButton id="saveCB" value="Save" style="height:21px; width:51px;font-size:8pt" action="#{resourceBean.saveAction}">
</h:commandButton>
<h:commandButton id="updateCB" value="Update" style="height:21px; width:51px;font-size:8pt" action="#{resourceBean.updateAction}">
</h:commandButton>
</h:panelGrid>
</h:panelGroup>
</h:form> <!-- end buttons --></td>
</tr>
</table>
<HR align="center" size="2" width="60%" />
<!-- data table -->
</div>
</f:view>
THANKS.
-LI solved this.
Since I was testing the action code only, I didn't define a navigation entry corresponding to the action string returned for this button:
<h:commandButton value="Add" style="height:21px; width:51px;font-size:8pt; font-color: black;" action="#{resourceBean.addAction}">
</h:commandButton>After I added a nav definition, it worked. I don't know why at this point. I suspect a key step in the lifecycle was pre-empted...someone else can probably explain why. If I get a chance to research it after I'm done with my project, I'll update this post.
Thanks.
-L -
Customize faces managed bean loading in ADF ( in JDev 11.1.2.1)
Hi there,
I am trying to use Spring with ADF. The intention is to use Spring context managed beans to use as backing beans in ADF.
I created a simple bean class. Created Data control based on it and tried to look at factoryClass, which is responsible for instantiating the bean class, oracle.adf.model.adapter.DataControlFactoryImpl.
Where in ADF it creates the instances of backing beans? What is the best approach to solve this puzzle?
With regards,
- Manoj
----------Manoj
I don't think your version of Jdeveloper supports CDI beans. It is my understanding that CDI beans will be supported next year in Jdeveloper.
So for now, if you are using Jdeveloper, you are stuck with only JSF managed beans that need to go in the faces-config.xml files or managed beans annotations .....
Yesh -
Bean datacontrols and managed beans
Hi,
When I use bean data controls, my bean from which the datacontrol is created is in session scope. In this case, should I be using another managed bean for the UI purpose or shall I use the "data control bean" ?
For eg:
I have a an EmployeeManager which returns a list of employees. Now I created a data control from my EmployeeManager. And I create a table of employees on my jspx. Suppose I want to keep the last selected employee record for some back end processing ( maybe a web service call to get the Employee Salary details) , shall I keep the selected Employee in my EmployeeManager or should I have a managed bean?
If I keep this in managed bean, again I need it in my EmployeeManager for back end call. Please guide me.
Thanks,
ManojModel layer binds presentation layer to business logic and data services and vise versa. In ADF applications the model layer is implemented as ADF DataControls + ADF Bindings. The presentation layer is implemented usually as UI. The business logic and data services may be implemented in various ways (ADF BC, EJB, POJO, Java Beans, Web Services, etc.). See this ADF architecture diagram.
You should separate these layers from each other. In this way you will be able to replace the implementation of some layer without re-engineering the other ones (for example, to replace the bean-based data services with ADF based ones without re-engineering the user interface).
Keeping track of the current records is responsibility of the model layer and the business/data services. The JSF managed beans are not a proper place to do it because they are part of the presentation layer. (In theory if you have good application architecture and you replace the implementation of the data service, then you should not be forced to modify the presentation layer too).
ADF iterator bindings (defined in PageDefs) have a built-in funtionality for keeping track of current rows. In my opinion, they have this functionality regardless of the kind of the data services they are based on, so if you use ADF bindings you should have this functionality out-of-the-box even in case of a bean-based DataControl.
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