BindingContainer Reference in Backing bean

Hi,
When I use method call(method referred from backing bean) from task flow definition I get bindings null using below code
DCBindingContainer bindings = (DCBindingContainer) BindingContext.getCurrent().getCurrentBindingsEntry();
Any pointers?
Thanks
RB

Hi Frank,
Thanks. Are you saying even binding container reference we can pass using the task flow parameter?
Following is the use case I am trying to get the BindingContainer reference,
1. I wrote custom method in backing bean which is called from task flow definition using method call activity
2. To get the OperationBinding reference currently I am using the below code in backing bean
public void customMethodCall(){
DCBindingContainer bindings = (DCBindingContainer) BindingContext.getCurrent().getCurrentBindingsEntry();
oracle.adf.model.OperationBinding opBinding =
(oracle.adf.model.OperationBinding)bindings.getOperationBinding("CustomeMethod");
opBinding .execute();
3. In above code bindings returns always null if used/call it as method call in task flow definition
Am I missing something??
Regards
RB

Similar Messages

JSF EL: referencing programmatically generated backing beans

Hi all,
I create backing beans in Java code using the ValueBinding class:
for(Question q : questions){
ValueBinding vb = FacesUtilities.createValueBinding("#{requestScope.questionBean" + question.getId() + "}");
vb.setValue(FacesContext.getCurrentInstance(), new QuestionBean(question));
}No problem so far, but how can I reference these backing beans dynamically using the JSF EL?
<c:forEach var="question" items="#{questionListBean.questions}">
<h:outputText value="#{#{requestScope.questionBean}#{question.id}.type}"/>
<h:outputText value="#{requestScope.questionBean#{question.id}.type}"/>
</c:forEach>None of them seem to work because nesting expressions is not an option. Anybody got a clue?
Thanks in advance!
Kind regards,
Dirk

Make a List of QuestionBean objects and place that in the request scope instead.

Binding parameters in backing bean

hey,
i have a function func1(String str) with a parameter
in my bb i use code to invoke the function:
BindingContainer bindings = getBindings();
OperationBinding operationBinding = bindings.getOperationBinding("func1");
operationBinding.execute();
how can i bind parameter in backing bean?

hi user,
+ with,
here some
your bean
public class Login {
    private RichInputText it2;
    private RichInputText it1;
public void setIt2(RichInputText it2) {
        this.it2 = it2;
    public RichInputText getIt2() {
        return it2;
    public void setIt1(RichInputText it1) {
             this.it1 = it1;
    public RichInputText getIt1() {
               return it1;
BindingContainer bindings = getBindings();
        OperationBinding operationBinding = bindings.getOperationBinding("checkLoginCredentials1");
        operationBinding.getParamsMap().put("p_user", it2);    p_user - bind var
        operationBinding.getParamsMap().put("p_pwd", it1);    p_pwd - bind var
} your method in am:
    public String checkLoginCredentials1(String p_user, String p_pwd) {
        /*set the bind variable value*/
        vo.setNamedWhereClauseParam("p_user", p_user.toUpperCase());
        vo.setNamedWhereClauseParam("p_pwd", p_pwd.toUpperCase());
        return "Welcome" + " " + p_user.toUpperCase();
    }p_user - say this in vo also
p_pwd - say this in vo also
just an references.
Edited by: Erp on Nov 23, 2011 11:00 PM

What is difference between Managed Bean and Backing Bean?

What is difference between Managed Bean and Backing Bean? Please guide me how to create them and when to use them?
Please post sample for both beans.

Hi,
managed beans and backing beans are quite the same in that the Java object is managed by the JavaServer Faces framework. Manage in this respect means instantiation. The difference is that backing beans contain component "binding" references, which managed beans usually don't. Do backing beans are page specific versions of managed beans.
Managed beans are configured either in the faces-config.xml file, or using ADF Faces and ADFc, in the adfc-config.xml file
Frank
Edited by: Frank Nimphius on Jan 31, 2011 8:49 AM

How to call a query from the backing bean ?

Hi all,
Another question for you guys :
I made a jspx page with an input form and a submit button.
When I click the submit button, the action my_action in my backing bean is executed.
This is the code :
public BindingContainer getBindings() {
return BindingContext.getCurrent().getCurrentBindingsEntry();
public String my_action() {
BindingContainer bindings = getBindings();
OperationBinding operationBinding = bindings.getOperationBinding("EmployeesView");
Object result = operationBinding.execute();
if (!operationBinding.getErrors().isEmpty()) {
return null;
I hoped that the query 'EmployeesView' was executed in this way, but I get the following exception :
java.lang.ClassCastException: oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding cannot be cast to oracle.binding.OperationBinding
So how should I execute the query EmployeesView ?
Second part of the question : What if I typed the name an employee in my form, and I want to
execute a query that selects all the Employees with that name ?
How do I make a query with a variable as input in the WHERE clause ?
Thanks in advance.
Edited by: Facehugger on 7-apr-2010 11:15

I'm still trying all the stuff you guys says, but still no result.
This is my backing bean :
+// the button action+
+public String my_action() {+
+// get the selected rows from the multiselect table and store the objectid's in an String array+
RowKeySet rks = graph_table.getSelectedRowKeys();
Iterator itr = rks.iterator();
Object key;
int nbr_objects = 0 , i = 0;
if (rks.size()>0) nbr_objects = rks.size();
+String[] objectid = new String[nbr_objects];+
while(itr.hasNext())
+{+
key = itr.next();
graph_table.setRowKey(key);
Object o = graph_table.getRowData();
JUCtrlHierNodeBinding rowData = (JUCtrlHierNodeBinding) o;
Row row = rowData.getRow();
+objectid[i] = row.getAttribute("Objectid").toString();+
i+;+
+}+
+// now get all the x and y values for these objectid's from the database out of the table history.+
BindingContainer bc = BindingContext.getCurrent().getCurrentBindingsEntry();
for (int j=0 ; j<nbr_objects; j+){+
+// get X and Y values for object number j+
DataPoints history = new DataPoints();
OperationBinding operationBinding = bc.getOperationBinding("retrieveHistory"); ===> operationBinding stays NULL ???+
+operationBinding.getParamsMap().put("OBJECTID", objectid[j]);+
Object retVal = operationBinding.execute();
+// ==> retVal should contain a List of all X and Y values for the provided objectid.+
+// while (retVal has values)+
+// {+
+// List_of_x_values.add(retVal.valueX);+
+// List_of_y_values.add(retVal.valueY);+
+// }+
history.add(List_of_x_values);
history.add(List_of_y_values):
+// call the soap method to do some calculations+
methodname.forecast(history);
+}+
+}+
In my application module :
public void retrieveHistory(String objectid) {
getHistory().setWhereClause("OBJECTID = '" + objectid + "'");
System.out.println("current query : "+getHistory().getQuery());
getHistory().executeQuery();
public ViewObjectImpl getHistory() {+
return (ViewObjectImpl)findViewObject("History");+
The query for the VO History : SELECT * FROM HISTORY
Please anyone ?
Edited by: Facehugger on 9-apr-2010 14:19

Using a backing bean in JDeveloper to assign bean class variables

I am using JDeveloper 10 to make a jsp page that is a form full of inputs and buttons. JDeveloper then creates the setters and getters for you for the ids of the various inputs and buttons. I also have used JDeveloper to create a backing bean.
The idea of this is to have the backing bean read in parameter(s) from an http source/link(when the form is loaded or instantiated) and assign those parameter(s) to one of the bean class local variables.
The reason i want to do this is, is that when the form is loaded the first thing it will do is open up an available database(in the bean class constructor), then in the constructor call a function to do a database query that will return a result set that will then be used to fill up the form.
That variable that is assigned by the backing bean will be the value of a unique database identifier for doing the sql query so that is why it is important that i get this value as the form loads.
So simply i need to find out from someone how to do this. i am totally new to doing any jsp development or using managed beans and i have gotten far enough to launch the form, retrieve and write to the database using sql queries and all the rest.
I just dont know enough about managed beans to make a decision on things like making the bean have a session scope. do i need request scope? if i change to request scope how do i make sure the database isn't being called every time the page changes or is refreshed?(when i had it as request scope the constructor was being called every time the page was reloaded and that isnt effecient at all, especially with multiple users). can you define more than one managed bean in one faces config file? do i have to manually change something in the jsp file to make sure things run smoothly?
Just maybe things are easier than i see them to be and my only problem is that i just dont understand what i am doing. here is what my backing bean looks like now with just basic session scope.
An example of course would be something like: http://host:port/context-root/faces/register.jsp?12345 - where 12345 would be the value that i would like to assign to a local variable in my bean class that can then be used for filtering out information via a query then filling up the form, all this happening at instantiation.
<?xml version="1.0" encoding="windows-1252"?>
<!DOCTYPE faces-config PUBLIC
"-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN"
"http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config xmlns="http://java.sun.com/JSF/Configuration">
<managed-bean>
<managed-bean-name>beanpackage</managed-bean-name>
<managed-bean-class>beanpackage.beanclass</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>

</managed-bean>
</faces-config>
This is what i have now, i've tried tons of stuff on the web like assigned value parameters but just am stuck on exactly what to do as nothing has seemed to work. Any help would be appreciated. Thanks in advance!

Hi,
don't think you will get a readily programmed solution to this (though I wish you luck). Here's how I would approach the managed bean issue
- One managed bean that you configure from a java.util.HashMap. This bean should be in requestScope (should be okay here). Say the bean is called "formFields", then adding data to it can be done with the following EL #{formBean['attribute_name']}. You need to add this as the value Expression of the inputText field you create dynamically. The filed will then read and write to the HashMap
- Create a managed bean in session scope to handle the database interaction. Put this into session scope (e.g. "database")
- Create a managed bean that holds the action listener that handles the update, insert and delete actions (e.g. logic handler). This bean has a JSF reference to the root component in the page (or the form layout component to add the fields to)
The "database" bean is referenced from the logic handler managed bean using the #{database} expression, which you resolve using a ValueBinding (ExpressionBinding in JSF 1.2). Or, you configure the bean as a managed property.
The logic managed bean also needs to reference the formFields bean (similar to above) to access the contained filed names and attributes. If the filed attributes match column names in the database then you should be all set
Frank

How can i call a taskflow methode from backing bean ??

Build JDEVADF_11.1.1.3.PS2_GENERIC_100408.2356.5660
i like to call a Methode (taskflow) from backing bean!
my bean code :
    public void imageLinkActionListner(ActionEvent actionEvent) {
        String              id      = actionEvent.getComponent().getId();
        int                 linkID = Integer.parseInt(id.substring(4));
        DCBindingContainer bc      = (DCBindingContainer)ADFUtils.getBindingContainer();
        DCTaskFlowBinding   tf      = null;
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        switch (linkID) {
            case LINK_CALENDAR_REGION:
                tf = (DCTaskFlowBinding)bc.findExecutableBinding("calendartaskflowPage");
            break;
            case LINK_MAIL_REGION:
                tf = (DCTaskFlowBinding)bc.findExecutableBinding("mailtaskflowPage");
            break;
          case LINK_ADDRESS_REGION:
              tf = (DCTaskFlowBinding)bc.findExecutableBinding("addresstaskflowPage");
          break;
          case LINK_BLOGS_REGION:
              tf = (DCTaskFlowBinding)bc.findExecutableBinding("blogstaskflowPage");
          break;
          case LINK_MAPS_REGION:
              tf = (DCTaskFlowBinding)bc.findExecutableBinding("mapstaskflowPage");
          break;
        default:
            return;
        if (tf != null){
            uiMainRegion.setRegionModel(tf.getRegionModel());
            uiMainRegion.setValue(tf.getRegionModel());
            tf.getExecutableBindings();
            AdfFacesContext.getCurrentInstance().addPartialTarget(uiMainRegion);
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my taskflow source
<?xml version="1.0" encoding="windows-1252" ?>
<adfc-config xmlns="http://xmlns.oracle.com/adf/controller" version="1.2">
<task-flow-definition id="map-task-flow">
    <default-activity id="__1">map</default-activity>
    <view id="map">
      <page>/map/map.jsff</page>
    </view>
    <method-call id="initMap">
      <method>#{backingBeanScope.mapBean.initMap}</method>
      <outcome id="__7">
        <fixed-outcome>init</fixed-outcome>
      </outcome>
    </method-call>
    <control-flow-rule id="__2">
      <from-activity-id id="__3">initMap</from-activity-id>
      <control-flow-case id="__5">
        <from-outcome id="__6">init</from-outcome>
        <to-activity-id id="__4">map</to-activity-id>
      </control-flow-case>
    </control-flow-rule>
    <use-page-fragments/>
</task-flow-definition>
</adfc-config>

Hi,
to call the bean, use the EL in Java and reference #{backingBeanScope.mapBean.initMap} as a method expression. If you try and access the bean directly then chances are that the instance is not available. Using EL from Java always guarantees this
Frank

How to call a method in backing bean on hitting 'Enter' key on a page.

Hi all,
I would be obliged if any one can provide me solution for the below given problem.
My requirement is to call a method in backing bean when i hit 'Enter' key on a JSP page.
I am trying this by using a script given below.
*function fnChangeFocus(){*
*if(window.event.keyCode==13){*
* document.getElementById("mainform:submitForm:commandbutton").focus();*
The JSP has the textbox as given below.
*<h:inputText id="inputtxtboxid" disabled="false" value="#{Bean.inputvalue}"*
onkeypress="fnChangeFocus()" size="24" />
Using this I could not acheive the required functionality. Please suggest some alternative.
Thanks,
Jagadeesh Pala

Only a form element supports the submit() function. Make sure that the getElementById returns the appropriate form. Or rather pass the element as the 'this' reference to the function and get the parent form from it.
After all this is just basic DHTML / Javascript+DOM knowledge and in fact this has nothing to do with JSF. For future basic DHTML / JS+DOM questions you may take a look at the appropriate forums, e.g. dhtmlcentral.com, dynamicdrive.com, etcetera.

How to set button disabled property based on backing bean method

JDeveloper 12c
I have a table and a button on the page. When user selects certain table row I want to enable/disable the button.
My backing bean (which has backing bean scope in the task flow where the page is) is
package view.backing;
public class Studybrowse {
    public Studybrowse() {
    public String b1_action() {
          //Do something here
        return null;
   public boolean b1_user_auth(){
       // Do something here to return true or false
        return true;
My button is something like this:
<af:button text="Do something" id="b4" action="#{backingBeanScope.Studybrowse.b1_action}"
               disabled="#{backingBeanScope.Studybrowse.b1_user_auth THIS DOES NOT WORK}"
               partialTriggers="t1"/>
The first problem is in design time, it says: "Reference backingBeanScope.Studybrowse.b1_user_auth not found"
and in runtime, desired behavior does not work.
Any help is appreciated

Timo:
I changed my backing bean method like this:
    public Boolean isUserAuthorized(){
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and the button disabled property like this:
           <af:button text="Go to Reports!" id="b5" action="#{backingBeanScope.Studybrowse.b1_action}"
                       disabled="#{backingBeanScope.Studybrowse.isUserAuthorized}"
                       partialTriggers="t1"/>
Still same problem in design time there is a warning and 500 error in runtime.
<Jan 22, 2014 11:36:15 AM CST> <Warning> <oracle.adf.view.rich.component.fragment.UIXRegion> <ADF_FACES-00009> <Error processing viewId: /studyBrowse URI: /studyBrowse.jsf actual-URI: null.
javax.el.PropertyNotFoundException: //C:/Documents and Settings/rade/Application Data/JDeveloper/system12.1.2.0.40.66.68/o.j2ee/drs/ADFOracleReports/ViewControllerWebApp.war/studyBrowse.jsff @41,46 disabled="#{backingBeanScope.Studybrowse.isUserAuthorized}": The class 'view.backing.Studybrowse' does not have the property 'isUserAuthorized'.
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:111)
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at oracle.adfinternal.view.faces.renderkit.rich.ButtonRenderer.encodeAll(ButtonRenderer.java:270)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1578)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1085)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)
at oracle.adfinternal.view.faces.renderkit.rich.PanelGroupLayoutRenderer._encodeChild(PanelGroupLayoutRenderer.java:455)
at oracle.adfinternal.view.faces.renderkit.rich.PanelGroupLayoutRenderer.access$1600(PanelGroupLayoutRenderer.java:30)
at oracle.adfinternal.view.faces.renderkit.rich.PanelGroupLayoutRenderer$EncoderCallback.processComponent(PanelGroupLayoutRenderer.java:761)
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at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1085)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:641)
at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3195)
at oracle.adfinternal.view.faces.renderkit.rich.RegionRenderer._encodeChildren(RegionRenderer.java:417)
at oracle.adfinternal.view.faces.renderkit.rich.RegionRenderer.encodeAll(RegionRenderer.java:228)
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at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
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at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:641)
at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3195)
at oracle.adfinternal.view.faces.renderkit.rich.FormRenderer.encodeAll(FormRenderer.java:275)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1578)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1085)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:641)
at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3195)
at oracle.adfinternal.view.faces.renderkit.rich.DocumentRenderer.encodeAll(DocumentRenderer.java:1473)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1578)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1085)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
at oracle.adfinternal.view.faces.component.AdfViewRoot.encodeAll(AdfViewRoot.java:102)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402)
at org.apache.myfaces.trinidad.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:101)
at org.apache.myfaces.trinidad.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:101)
at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:338)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:125)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:170)
at oracle.adfinternal.view.faces.lifecycle.ResponseRenderManager.runRenderView(ResponseRenderManager.java:52)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:1104)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:389)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:255)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:341)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:192)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:478)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:478)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:303)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:208)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:225)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3367)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3333)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2220)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2146)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2124)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1564)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:254)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:295)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:254)
>
<Jan 22, 2014 11:36:15 AM CST> <Error> <javax.enterprise.resource.webcontainer.jsf.application> <BEA-000000> <Error Rendering View[/studyBrowse]
javax.el.PropertyNotFoundException: //C:/Documents and Settings/rade/Application Data/JDeveloper/system12.1.2.0.40.66.68/o.j2ee/drs/ADFOracleReports/ViewControllerWebApp.war/studyBrowse.jsff @41,46 disabled="#{backingBeanScope.Studybrowse.isUserAuthorized}": The class 'view.backing.Studybrowse' does not have the property 'isUserAuthorized'.
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:111)
at org.apache.myfaces.trinidad.bean.FacesBeanImpl.getProperty(FacesBeanImpl.java:73)
at oracle.adfinternal.view.faces.renderkit.rich.ButtonRenderer.getDisabled(ButtonRenderer.java:436)
at oracle.adfinternal.view.faces.renderkit.rich.ButtonRenderer.encodeAll(ButtonRenderer.java:270)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1578)
Truncated. see log file for complete stacktrace
>

Problem in obtaining collection of parameters onto my backing bean

Hi All,
I am working on a page 'browse.jsp' inside Alfresco CMS to implement a customization of mine wherin in the "details" view, inclusion of checkboxes besides the document names and their checking and submission will result in thier display in a subsequent JSP.
Here is my code snippet from line no 411 of 'browse.jsp'
BeanForSendMultiple.java is my backing bean.
<%-- Primary column for details view mode --%>
<a:column id="col10" primary="true" style="padding:2px;text-align:left" rendered="#{BrowseBean.browseViewMode == 'details'}">
<f:facet name="header">
<a:sortLink id="col10-sort" label="#{msg.name}" value="name" mode="case-insensitive" styleClass="header"/>
</f:facet>
<h:dataTable binding="#{BeanForSendMultiple.dataTable}"
                             value="#{BeanForSendMultiple.nameDetails}" var="loc">
                    <h:column>
                        <h:selectBooleanCheckbox value="#{loc.selected}"/>
                        <h:outputText value="#{loc.docContentName}"/>
                    </h:column>
                </h:dataTable>
<a:actionLink id="col10-act2" value="#{r.name}" href="#{r.url}" target="new" >
<f:param name="documentDetails" value="#{r.name}" />
</a:actionLink>
<r:lockIcon id="col10-lock" value="#{r.nodeRef}" align="absmiddle" />
<h:outputLabel id="col10-lang" value="#{r.lang}" styleClass="langCode" rendered="#{r.lang != null}" />
<r:nodeInfo id="col10-info" value="#{r.id}">
<h:graphicImage id="col10-img" url="/images/icons/popup.gif" styleClass="popupImage" width="16" height="16" />
</r:nodeInfo>
</a:column>Here is my backing bean BeanForSendMultiple
public class BeanForSendMultiple {
    private List<NamesDetails> nameDetails;
    private String []documentDetails;
    private HtmlDataTable dataTable;
    private NamesDetails nameFurtherDetails = new NamesDetails();
    public BeanForSendMultiple(){
        nameDetails = new ArrayList<NamesDetails>();
           NamesDetails nameFurtherDetails1 = new NamesDetails();
           for(int k=0;k<=documentDetails.length;k++){
               nameFurtherDetails1.setDocContentName(documentDetails[k]);
           nameDetails.add(nameFurtherDetails1);
    public HtmlDataTable getDataTable() {
        return dataTable;
    public void setDataTable(HtmlDataTable dataTable) {
        this.dataTable = dataTable;
     public List<NamesDetails> getNameDetails() {
        return nameDetails;
       public void setNameDetails(List<NamesDetails> nameDetails) {
        this.nameDetails = nameDetails;
       public String submit(){
        Iterator iterator = nameDetails.iterator();
        while (iterator.hasNext())
            nameFurtherDetails = (NamesDetails)iterator.next();
            System.out.print(nameFurtherDetails.isSelected());
            System.out.print(nameFurtherDetails.getDocContentName());
        return "dataTableCheckBox";
     public String[] getDocumentDetails() {
       return documentDetails;
       public void setDocumentDetails(String documentDetails[]) {
        this.documentDetails = documentDetails;
}and here are the getters and setters for the document
public class NamesDetails implements Serializable
    private static final long serialVersionUID = 7526471155622776147L;
    private boolean selected;
    private String docContentName;
    public boolean isSelected() {
        return selected;
     public void setSelected(boolean selected) {
        this.selected = selected;
     public String getDocContentName() {
       return docContentName;
       public void setDocContentName(String docContentName) {
        this.docContentName = docContentName;
}But on running the application i am getting the following stack trace: The issue being a NullPointer exception in obtaining documentDetails.length from the BeanForSendMultiple
javax.faces.FacesException: An exception occurred processing JSP page /jsp/browse/browse.jsp at line 430
427: <a:sortLink id="col10-sort" label="#{msg.name}" value="name" mode="case-insensitive" styleClass="header"/>
428: </f:facet>
429:
430: <h:dataTable binding="#{BeanForSendMultiple.dataTable}"
431: value="#{BeanForSendMultiple.nameDetails}" var="loc">
432: <h:column>
433: <h:selectBooleanCheckbox value="#{loc.selected}"/>
Stacktrace:
caused by:
org.apache.jasper.JasperException: An exception occurred processing JSP page /jsp/browse/browse.jsp at line 430
427: <a:sortLink id="col10-sort" label="#{msg.name}" value="name" mode="case-insensitive" styleClass="header"/>
428: </f:facet>
429:
430: <h:dataTable binding="#{BeanForSendMultiple.dataTable}"
431: value="#{BeanForSendMultiple.nameDetails}" var="loc">
432: <h:column>
433: <h:selectBooleanCheckbox value="#{loc.selected}"/>
Stacktrace:
caused by:
javax.faces.el.EvaluationException: Cannot get value for expression '#{BeanForSendMultiple.dataTable}'
caused by:
java.lang.NullPointerException
Hide Details
javax.faces.FacesException: An exception occurred processing JSP page /jsp/browse/browse.jsp at line 430
427: <a:sortLink id="col10-sort" label="#{msg.name}" value="name" mode="case-insensitive" styleClass="header"/>
428: </f:facet>
429:
430: <h:dataTable binding="#{BeanForSendMultiple.dataTable}"
431: value="#{BeanForSendMultiple.nameDetails}" var="loc">
432: <h:column>
433: <h:selectBooleanCheckbox value="#{loc.selected}"/>
Caused by: java.lang.NullPointerException
at org.alfresco.web.bean.BeanForSendMultiple.<init>(BeanForSendMultiple.java:108)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
.....Could any one please guide me on my approach where i am missing out.
Thank You

You can use:
public Object resolveExpression(String expression)
    FacesContext ctx = getFacesContext();
    Application app = ctx.getApplication();
    ValueBinding bind = app.createValueBinding(expression);
    return bind.getValue(ctx);
}and
BindingContainer bc = (BindingContainer) resolveExpression("#{bindings}");John

Use an SQL Query in a backing bean

hi,
I like to know how to run an SQL query in a backing bean method, this being the code I tried , his goal is to fill the field "cin" with data coming from my database, here is the Code:
public String cb2_action() {
BindingContainer bindings = getBindings();
OperationBinding operationBinding = bindings.getOperationBinding("CreateInsert");
Object result = operationBinding.execute();
if (!operationBinding.getErrors().isEmpty()) {
return null;
DCIteratorBinding dciter =(DCIteratorBinding) bindings.get("PersonneView1Iterator");
Row row=dciter.getCurrentRow();
Statement stmt = this.getDBTransaction().createStatement(1);
try {
ResultSet rs = stmt.executeQuery("select max(cin) from personne");
while( rs.next() ){
row.setAttribute("cin", rs.getInt(1)+1);
} catch (SQLException ex) {
ex.printStackTrace();
return "go";
at run time it give an error at this line : Statement stmt = this.getDBTransaction().createStatement(1);
please check and correct me
thanks in advance

Hi,
Initially I would like to say that this should not be used if you are trying to get a PrimaryKey as it would cause serious concurrency issues.
For example lets say that you want whenever you create a new Employee to set his DepartmentId equal to the max department.
We could create a readOnly VO (lets name it MaxDepartmentId) with a query that returns the max departmentId:
select max(Department_Id) as maxDep from DepartmentsAfter that we need to add the MaxDepartmentId VO as a ViewAccessor in our Employees Vo,
override the create() method in the EmployeesRowImpl and add some code like this:
public class EmployeesRowImpl extends ViewRowImpl {
    @Override
    protected void create(AttributeList attributeList) {
        Row r=getMaxDepartmentId().first();
        if(r!=null){
             Number max=(Number)r.getAttribute("Maxdep");
             attributeList.setAttribute("DepartmentId", max);
        super.create(attributeList);
}That's all.
If you run this you will see that when you create a new employee it has a default value.
Gabriel.

ADF Faces: How to get the ADF BindingContainer in a managed bean?

Hi,
I not sure how to get the BindingContainer instance from inside of a managed bean method. I have tried the following config, but it does not work in all situations.
<managed-bean>
    <managed-bean-name>backing_showBooks</managed-bean-name>
    <managed-bean-class>view.backing.ShowBooks</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
    <managed-property>
      <property-name>bindingContainer</property-name>
      <property-class>oracle.adf.model.binding.DCBindingContainer</property-class>
      <value>#{bindings}</value>
    </managed-property>
    
</managed-bean>When an ActionListener- method of my ShowBooks bean is called the property bindingContainer is NULL!!
Is there a save way to get the BindingContainer in my bean??
Any hints are welcome.
Thanks,
Markus

Maybe I just need another pair of eyes but when I set this up as explained and watch it in the debugger my method public void setBindingContainer(DCBindingContainer bc) gets called but bc is null. Can anyone help?
Thanks
Backing Bean-
private DCBindingContainer bindingContainer;
public void setBindingContainer(DCBindingContainer bc) {
this.bindingContainer = bc;
public DCBindingContainer getBindings() {
return bindingContainer;
//I just threw this method on there in case I was missing something & I also
//tried using a getBindingContainer method above but that didn;t work.
public void setBindings(DCBindingContainer bindings) {
this.bindingContainer = bindings;
adf-faces.conf entry
<managed-bean>
<managed-bean-name>backing_VunerabilityDetail</managed-bean-name>
<managed-bean-class>viewcontroller.backing.VunerabilityDetail</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
<managed-property>
<property-name>bindingContainer</property-name>
<property-class>oracle.adf.model.binding.DCBindingContainer</property-class>
<value>#{bindings}</value>
</managed-property>

</managed-bean>

Command Link : Backing bean setters/getters always invoked

I am trying to understand how to the setters and getters of a request scope managed backing bean are invoked through the navigation flow when using a command link.
It seems that no matter where the navigation rules redirects the page as a result of the action, both the setters and getters of any field bound in the originating page are called.
For example if the originating page has a field name referred by "#{UserBean.name}" to input a username. setName() and getName() are always called as a result of a click on a command link
This behavior is easily seen in a simple JSF example such as http://www.netbeans.org/kb/articles/jAstrologer-intro.html.
If the jsp pointed by "to-view-id" is changed to have no reference to the backing bean or is changed to a jsp with just text, both setters and getters are still invoked.
I could understand why the setters would be invoked (doesn't know ahead of time if the bean will be used?) but at least why the getters?
Last, how to prevent this behavior? The problem is that the backing bean might have complex logic where it will fetch data if a getter is called.
Thanks.

I guess this article might be interesting to get some insights http://balusc.xs4all.nl/srv/dev-jep-djl.html
The setters are invoked to set values and the getters are invoked to get the eventually presetted default values or the previously submitted values.

How to get value in backing bean from application module

Hi all.. I'm new in jdeveloper and adf..
I need to use value from backing bean and use that value in application module.
But I don't know how to get it.
Do you a have any solution?

suppose you have myMethod(String argumentName1,String argumentName2) in your Application Module
then to access a method binding from a managed bean, use the following code,
BindingContext bctx = BindingContext.getCurrent();
BindingContainer bindings = bctx.getCurrentBindingsEntry();
OperationBinding operationBinding =
       bindings.getOperationBinding("name_of_method_binding");
//Here you can pass the parameters value to the AM method
operationBinding.getParamsMap().put("argumentName1",value1);
operationBinding.getParamsMap().put("argumentName2",value2);
//invoke method
operationBinding.execute();
if (!operationBinding.getErrors().isEmpty()) {
     //check errors
     List errors = operationBinding.getErrors();
//optional
Object methodReturnValue = operationBinding.getResult();

Push messages from business logic into backing bean

In my simple web application a table with the contents of a database table is shown to the client. Now I want this table in the browser to be updated each time the db table is updated. In my business logic a jms message is fired to a specified topic each time the db table is updated. The reverse ajax stuff needed for the client update is provided by the Icefaces jsf implementation. There is a backing bean for each session which is responsible for the server side rerendering of the client. Now my question is: How do I connect the bussiness logic firing a jms message if the db table is updated, with the backing bean?
My thoughts:
1. Create a message listener for the topic. Each time the message listener receives a message it notifies the backing beans of each session to rerender the client. But how does the message listener know about the backing beans?
2. The backing bean responsible for rerendering the client adds itself as a listener. But where? As I understand it cannot be a backing bean and a jms MessageListener at the same time.
Has anyone an idea/pattern for this problem?

You could keep a list of beans that need to be notified in the application scope. (You should probably use weak references so that they may be garbage collected.) Then you JMS listener could get access to them.
Somebody posted a thread recently where they were doing something very similar, you might want to try to find it.

BindingContainer Reference in Backing bean

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