Oracle ADF ::如何通过requestScope将参数传递给命名查询到另一个视图对象

Question

Question:: How can i pass the value to parameter named “userParameter” in a query. using requestScope
Kindly help out with the steps to make a request scope work on the same page.

For now I know the following.

1. I have a page named UserRoomReservation

2. I have a data control (UserView) Drag the first data control as a table. convert the first column to a link add actionlistener to that link from: #{row.userId} to: #{requestScope.userParameter}

3. I created another view object via sql query I put a named parameter ":userParameter" the sql query is as written below:::

    SELECT DISTINCT Fullreservation.USERID, Meetingrooms."roomName", Meetingrooms."roomId" , COUNT (Fullreservation.roomid) AS countRoomUsage FROM FULLRESERVATION Fullreservation, "meetingRooms" Meetingrooms WHERE fullreservation.roomid = Meetingrooms."roomId" AND Fullreservation.USERID = :userParameter GROUP BY Meetingrooms."roomName", Meetingrooms."roomId", Fullreservation.USERID 

4. I dragged it to the same page as a graph. but it doesn't work because the value hasn't been passed to the

Answer 1

You can get value from requestScope

ADFContext.getCurrent().getRequestScope().get(obj);

and then set this value in bind variable using NamedWhereClauseParam method

ViewObjectInstance.setNamedWhereClauseParam("BindVariabbleName",value);
ViewObjectInstance.executeQuery();