How to DBTransaction - AppModule versus Backing Bean?

Hallo,
is there a way to work with getDBTransaction in a backing bean or is the right place for this in the AppModule?
Any help is appreciated.

I belive ApplicationModule is the correct place to write this code.
--Neelmani jaiswal

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I cant be the only one who has had to do this.
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Hi,
I have an application under jdev 11.1.1.1.0
I am using the explorer template.
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Hi,
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ADF BC how to access session backing bean value in servlet

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I'm not sure how I can incorporate this example into my situation. Let me explain more detail about my problem.
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Message was edited by:
bsmt

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Hello,
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Hi all,
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<h:outputText value="#{requestScope.questionBean#{question.id}.type}"/>
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Thanks in advance!
Kind regards,
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Make a List of QuestionBean objects and place that in the request scope instead.

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Hello
I'm quite new to JSF, Would like to know how we can trigger a bcaking bean action method using java script as part of form submit.
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Jobinesh

thanks a lot for the replies. I'll try it out.
But one question, just because of curiosity
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Error when I call a method of AppModule from a backing bean.

I use Jdeveloper 10.1.3.0.3 EA.
In my application I have created ApplModule and UsrView(for my table USR).
I have a login page (login.jsp and the backing login.java) with 2 fields userName and password and an ADF Faces Core command button (cmdCheckPass) and the method cmdCheckPass _action() for the click event .
The problem is that I cant call method testPassword(userName, password) which is written in AppModule. (I get error:
javax.faces.FacesException: #{backing_login.cmdCheckPass_action}: javax.faces.el.EvaluationException: java.lang.NullPointerException) from line:
answer = app.testPass(st1,st2);
The code is as follows:
public String cmdCheckPass_action() {
String answer="";
String mes = "";
String st1=this.getInputText1().getValue().toString();
String st2=this.getInputText2().getValue().toString();
AppModuleImpl app = new AppModuleImpl();
answer = app.testPass(st1,st2);
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mes="Invalid username, password !!!";
FacesContext.getCurrentInstance().addMessage(null,new FacesMessage(mes));
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I dont know if theoretically is right to call, from a backing bean, a custom method of AppModule.
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Some quick ideas:
Is the clip the same NTSC/PAL standard as the project you are importing it to?
Have you tried to rename the offending clip (do NOT rename any clips inside the iMovie /Media folder!!).
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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 ?
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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

How to DBTransaction - AppModule versus Backing Bean?

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