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Thursday 19 March 2015

ADF Basics: Disable user input in af:inputListOfValues

Sometimes we need to disable user input in input Lov as there is requirement of selecting value only from Lov popup

By default af:inputListOfValues provides feature to select value from popup or type a value as input


To disable user input there is a property -EditMode
From Oracle Docs-



editMode String Yes Valid Values: input, select

the mode that controls how the user specifies a value. This attribute is only applicable when the 'readOnly' attribute is set to false.
  • input: this mode allows the user to type in a value as well as browse and select from a list of available values.
  • select: this mode allows the user only to browse and select from a list of available values.


Set it's value to select
Happy Learning , Thanks :)

Tuesday 17 March 2015

Searching pivotTable using dvt:pivotFilterBar in Oracle ADF


dvt:pivotTable-

From Oracle docs- The Pivot Table supports the display of multiple nested attributes on a row and column header. In addition, the Pivot Table supports the ability to dynamically change the layout of the attributes displayed in the row or column headers via drag and drop pivoting.

Framework provides  <dvt:pivotFilterBar>component to perform search operation on pivotTable
The PivotFilterBar component is used to filter data based on the selected criterion belonging to the PivotableQueryDescriptor as specified by the value property



In this example i am using Departments and Employees table of HR Schema, Created a query based viewObject using this query (to show Departments and it's Employees)


SELECT A.DEPARTMENT_ID,  
B.EMPLOYEE_ID, 
A.DEPARTMENT_NAME , 
B.FIRST_NAME||' '||B.LAST_NAME AS NAME,  
B.EMAIL,  
B.PHONE_NUMBER, 
B.HIRE_DATE, 
B.JOB_ID, 
B.SALARY, 
B.COMMISSION_PCT 
FROM DEPARTMENTS A, EMPLOYEES B 
WHERE A.DEPARTMENT_ID=B.DEPARTMENT_ID

Add this viewObject to Application Module and drop on page as pivot table from Data Control
Configuration for pivotTable-

Pivot Table data set


Pivot Table Drilling

Finally it looks like this-

Now i have dropped <dvt:pivotTable> on page and it automatically sets it's properties that are required for filtering pivotTable


<dvt:pivotFilterBar id="pt1pivotFilterBar" value="#{bindings.DeptEmp1.pivotFilterBarModel}"
                                    modelName="pt1Model"/>

Once check that modelName property should be same for both pivotTable and filterbar
Now run this application and drop any column on filterbar that you want to search

Pivot Filter bar (Oracle ADF)
Sample ADF Application-Download
Cheers :) Happy Learning

Sunday 15 March 2015

Disable(Override) browser back button functionality in ADF Application using JavaScript

This is another JavaScript trick to disable browser back button functionality
In this example i am using two jspx pages - Page1 and Page2



Added two buttons in both pages to navigate between pages



Source of Page1-

<af:outputText value="Page 1" id="ot1" inlineStyle="font-size:medium;font-weight:bold;"/>
                <af:commandButton text="Go To Second Page" id="cb1" action="forward"/>


Source of Page2-


 <af:outputText value="Page 2" id="ot1" inlineStyle="font-size:medium;font-weight:bold;"/>
                <af:commandButton text="Go To First Page" id="cb1" action="backward"/>


Now see JavaScript function to disable back button functionality, In actual JavaScript doesn't disable back button but override it's default functionality
This function forces browser to navigate forward instead of going back so on click of back button first browser executes it's default back operation but due to this function again navigates to forward and show same page


function preventBackButton() {
                  window.history.forward();
              }

Add this javascript to Page 1 and invoke using af:clientListener tag on pageLoad


<af:clientListener method="preventBackButton" type="load"/>

Now run application and check
Go to second page and the press back button - it returns to page one for a fraction of second but again navigates to Page 2
It means it is working , Cheers :) Happy Learning