Use View Criteria Query Execution Mode for In-Memory filtering of rows

Hello All

Sometimes we need to filter uncommitted records and query based bind variable or setWhereClause method doesn't do the job in that case as it requeries viewObject and filters committed records only

So for this type of requirement we can use view criteria. View criteria works on basis of it's query execution mode

By default it is set to Database only and we can change it to Memory (In-Memory filtering only) and both (DB and In-Memory filtering)
Here In-Memory filtering means rows that are not commited yet also get filtered

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-

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

Sample ADF Application-Download
Cheers :) Happy Learning

Search on (Filtering) child nodes of af:treeTable using viewCriteria in Oracle ADF (11g,12c)

Hello all
this post is about filtering treeTable on basis of child nodes in Oracle ADF
in this tutorial i have used Departments and Employees table of HR schema to create treeTable
see how to create treeTable-
http://www.awasthiashish.com/2012/11/tree-table-component-in-oracle.html
http://www.awasthiashish.com/2013/08/tree-table-component-with-declarative.html

treeTable look like this-

now next is to search on Employee Names

• i have dropped a input text for search string and a button to search on page , here i am searching on first name of employees 





• now created a view Criteria in Employee viewObject to search on first name





• This viewCriteria doesn't work directly on Employee viewObject, to search in treeTable we have to override createViewLinkAccessorRS method in Departments (master vo) VOImpl class, and in this method we have to call Employees ViewCriteria explicitly , this will filter Employee Vo Rowset as per bind-variable value when a node is disclosed at runtime



    /**
     * @param associationDefImpl
     * @param viewObjectImpl
     * @param row
     * @param object
     * @return
     */
    protected ViewRowSetImpl createViewLinkAccessorRS(AssociationDefImpl associationDefImpl,
                                                      ViewObjectImpl viewObjectImpl, Row row, Object[] object) {


        ViewRowSetImpl viewRowSetImpl = super.createViewLinkAccessorRS(associationDefImpl, viewObjectImpl, row, object);

        String firstName = getFirstNm();
        ViewCriteriaManager vcm = viewObjectImpl.getViewCriteriaManager();
        ViewCriteria vc = vcm.getViewCriteria("EmployeesVOCriteria");
        VariableValueManager vvm = vc.ensureVariableManager();
        vvm.setVariableValue("BindFirstNm", firstName);
        viewObjectImpl.applyViewCriteria(vc);
        return viewRowSetImpl;


        // return super.createViewLinkAccessorRS(associationDefImpl, viewObjectImpl, row, object);
    }



• to pass bind-variable value i have created a variable and it's accessors in VoImpl and exposed set method to client that is further used by managed bean



    private String firstNm;
    public void setFirstNm(String firstNm) {
        this.firstNm = firstNm;
    }

    public String getFirstNm() {
        return firstNm;
    }



• now this setter method is called in managed bean search button action to set bind variable value



    /**Method to search in treeTable childs
     * @param actionEvent
     */
    public void searchAction(ActionEvent actionEvent) {
        if (firstNmBind.getValue() != null) {
            OperationBinding ob = executeOperation("setFirstNm");
            // firstNmBind is binding of inputText
            ob.getParamsMap().put("firstNm", firstNmBind.getValue().toString());
            ob.execute();
            /* Method Expand treeTable after Search see- 
             http://www.awasthiashish.com/2013/10/expand-and-collapse-aftreetable.html*/
            expandTreeTable();
            AdfFacesContext.getCurrentInstance().addPartialTarget(treeTabBind);

        }
    }



• Run your application and see-
  
  Cheers- Happy Learning
  Download Sample ADF Application

Hiding search icon of af:inputListOfValues using CSS & ADF Skin

Hello All,
Hope all are doing good, this post talks about skinning inputListOfValues to hide its search icon (magnifying glass)
we can use the auto-suggest feature in inputListOfValues so if we don't want to display that default search icon then what to do?

• inputListOfValues looks like this in ADF Faces

•  I have created a page and dropped 2 inputListOfValues on page

•  there is 2 types of requirement about hiding search icon
1. Hide icon of all inputListOfValues(LOVs) available on page or application
2. Hide icon of some selected fields
• to do this we have to create a CSS (skin) in application

• give relevant name of CSS file and set this file as default skin of application

• Now to hide icon of the selected inputListOfValues component in an application, go to the source of CSS file and just write this code
   



.TagSearchIconHidden af|inputListOfValues::search-icon-style
{
display: none;
} 



• Now go to the page and paste TagSearchIconHidden in StyleClass property of lov component to hide its icon, run your page and see, I have done this in my first LOV

•  Now to hide icons of all lov component just change CSS file with this script



af|inputListOfValues::search-icon-style
{
  background-image: none; 
}



• Now no need to set StyleClass, it is applicable to all lov components of the application

 Cheers :-)

Implementing custom search form in ADF programmatically (Without using af:query)

Sometimes we need to implement custom search instead of using adf query component.
To implement custom search form , i have used a quite beautiful way to handle search and reset functionality for a View Object.
In this post i am taking Employees Table (Default HR Schema) to search and reset af:table.

• First create a Fusion Web Application and create model (EO,VO and AM) using Employees table

• Now suppose we have to search on 4 fields (EmployeeId, FirstName, Email, Salary) , so for this i have created a new read only ViewObject from dual

•  This VO from dual is created to be used as Search form on page

•  Now to make search effective on Employees VO , i have created 4 bind variable for corresponding fields in Employees ViewObject

•  Now i have created a ViewCriteria using these 4 bind variables to re-query ViewObject  data

•  This ViewCriteria will be executed each time when value of bind variable is changed, now this is the time to set value of bind variables, so i have dragged dual vo as a form on page, and added 2 button for Search and Reset

•  To View Search Result , Employees Table is there on page

•  Now to get value from Form Field to bean , i have created binding for all 4 fields in bean

•  Now i have created ActionListener for Search button- in this code i have get value from page using component bindings and passed in Employees ViewObject's bind variable in order to execute viewCriteria.



    public void searchButton(ActionEvent actionEvent) {
        searchAMImpl am = (searchAMImpl)resolvElDC("searchAMDataControl");
        ViewObject empVo = am.getEmployees1();
        empVo.setNamedWhereClauseParam("EmpIdBind", empIdPgBind.getValue());
        empVo.setNamedWhereClauseParam("FirstNmBind", firstNmPgBind.getValue());
        empVo.setNamedWhereClauseParam("EmailBind", emailPgBind.getValue());
        empVo.setNamedWhereClauseParam("SalaryBind", salaryPgBind.getValue());
        empVo.executeQuery();
    }



• Once value is set in bind variable , view criteria is executed and Search result will be shown in resultant table- Run your application and see

• To reset values in table and search form, see the managed bean code of Reset button



    public void resetButton(ActionEvent actionEvent) {
        searchAMImpl am = (searchAMImpl)resolvElDC("searchAMDataControl");
        ViewObject empVo = am.getEmployees1();
        ViewObject attrVo=am.getattr1();
        empVo.setNamedWhereClauseParam("EmpIdBind", null);
        empVo.setNamedWhereClauseParam("FirstNmBind", null);
        empVo.setNamedWhereClauseParam("EmailBind", null);
        empVo.setNamedWhereClauseParam("SalaryBind", null);
        empVo.executeQuery();
        attrVo.executeQuery();
      
    }



• Click on reset button and page value are set to default

• This is how we can implement custom search using ADF components, you can apply validations, auto suggest feature etc while using this custom search

          Cheers :-)  Download Sample App