Change an attribute value in the last level of a tree

Question

Hi,
I'm using jdev 11.1.1.0.1
I have a tree composed of 5 VO. Each VO represent a level of the tree. I made an "executeWithParam" in my VO level 1 to pass some parameters.
I would like to make a "setAttribute" on my VO level 5. I'm working with a tree, so i can't do : "getMyVo.getCurrentRow.setAttribute..."
How can i do?
ideas :
- Today, i use bind variable to pass parameters from first level VO to last level VO : can i put the bind variable value in an attribute value?
- Is there a method to override in the viewRowImpl.java to catch the "setAttributeInternal" made by ADF? so i could change the value of this attribute
- Is there a method to override in the viewImpl.java which can help me?
I try a lot of think without success... hope someone can help me
Thanks in advance
Clément

Answer 1

Hi Frank,
Thanks for your help.
My need is to initialize all the rows of my VO level 5. Not only the selected ones. But i keep your solution for later :)
Today, that is what i'm doing :
- First, i use "executeWithParam" to complete a bind parameter of the first VO.
    public void executeWithParamTreeNiv1() {
        VoLvl1ViewImpl view =
            (VoLvl1ViewImpl) getLvl1View ();
        VoSourceId rowSrc =
            (VoSourceIdRowImpl) getVoSourceIdView().getCurrentRow();
        if (rowSrc != null) {
            saisPrevTreeView.setFkId(rowSrc.getId());
    }- Then, i use the method "createViewLinkAccessorRS" of the viewImpl, to pass bindParmeters between VOs.
        protected ViewRowSetImpl createViewLinkAccessorRS(AssociationDefImpl assocDef, ViewObjectImpl accessorVO,
                                                      Row masterRow, Object[] values) {
        ViewRowSetImpl v = super.createViewLinkAccessorRS(assocDef, accessorVO, masterRow, values);
        Number fkId = (Number)((ViewRowImpl)masterRow).getViewObject().getNamedWhereClauseParam("FkId");
        accessorVO.setNamedWhereClauseParam("FkId", fkId );
        v.setNamedWhereClauseParam("FkId", fkId );- Finally, i use the method "isAttributeUpdateable" of my VO level 5, to get the bind parameter and make a setAttribute.
    @Override
    public boolean isAttributeUpdateable(int i) {
        Number fkId= (Number)this.getViewObject().getNamedWhereClauseParam("FkId");
        if (fkId!= null) {
            this.setFkId(fkId);
    }What do you think about this method?
Thanks
Clément