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Showing posts with label setWhereClause. Show all posts
Showing posts with label setWhereClause. Show all posts

Tuesday 19 April 2016

Define WHERE Clause on dynamic ViewObject created on the fly

Saturday 1 August 2015

ADF Baiscs: Define and remove named bind variable in viewObject at runtime programmatically

This post is about creating named bind variable in viewObject at run time and filter viewObject using this bind variable in WHERE Clause of ViewObject programmatically .

Defining WHERE Clause and Bind Variable name and default value -

        //Get ViewObject
        ViewObject vo = iter.getDepartments();

        //Apply desired WHERE Clause and declare bind variable name

        //Define this variable as ViewObject Bind Variable , You can also set default value for this
        vo.defineNamedWhereClauseParam("BindDepartmentName", "Purchase", null);

        // Execute ViewObject to finally apply where clause

Setting value of Bind Variable-

        //Setting Value of Bind Variable
        vo.setNamedWhereClauseParam("BindDepartmentName", "Finance");

Getting value of Bind Variable-

        //Get value of Bind Variable

Removing WHERE Clause and Bind Variable after use-

        //Remove where clause
        //Remove Bind Variable

Cheers :) Happy Learning

Sunday 22 March 2015

ADF Basics: Apply and Change WHERE Clause of ViewObject at runtime programmatically

This post is about applying or changing WHERE clause of ViewObject programmatically, it can be also used in case we need a specific data(row) from database, suppose you are using Department table of HR Schema and on a button click you need to show records of department id 5

It means you want to filter viewObject on that particular event, you can do this using setWhereClause mehtod of ViewObjectImpl class.
See the image below , all rows shown in this

Now when we click the button, it will filter (apply WHERE Clause in Departments ViewObject) rows and refresh ViewObject , returns desired rows.

For Department_Id 4-

For Department_Id 5-

To apply WHERE Clause , see this simple snippet of code

ViewObject v1 = am.getDepartment1();
v1.setWhereClause("DEPARTMENT_ID=4"); // Pass Where Clause String as Method Parameter

This code snippet fetch the Row with Deprartment_id=4 and returns back to page. setWhereClause sets the Query's (SQL) Where Clause and doesn't take effect until executeQuery method of ViewObjectImpl is called

To reset Where Clause we have to set null value in method used

ViewObject v1 = am.getDepartment1();
v1.setWhereClause(null); // To Remove Where Clause

Thanks , Happy Learning :)