Web Dynpro Java Retrieving values from model and pushing data into model object

[Former Member]

Hi Team,

I had worked in SAP Web Dynpro Java Coding and was good at that time. I have doubts as I left it for long.

Pushing data in RFC:

Zrfc_Input rfcInput = new Zrfc_Input();

wdContext.nodeZrfc_Input().bind(rfcInput);

// Create the instance of the structure which needs to be sent to RFC

for(int i = 0; i < <valuenodesize>; i++)

{

//create an instance of the model node structure

<structurename> structname = new <structurename>();

structname.set<attribute>(<vakuenodeelement>At(i).get<attribute>);

<structireme>.add(structname);

}.

wdContext.currentZrfc_InputElement().set<structurename>(<structireme>);

wdContext.currentZrfc_InputElement().modelObject().execute();

wdContext.nodeOutput().invalidate();

-----------------------------------------------------------------------------------------------------------------------

For Inserting data from Model Node to Value Node

int nDetailsTableSize = wdContext.node<Model Node>().size();

IPrivateSampleView.I<Value Node>Element ele<Value Node>;

wdContext.node<Model Node>().moveFirst();

for(int i = 0; i < nDetailsTableSize; i++)

{

ele<Value Node>= wdContext.node<Value Node>().create<Value Node>Element();

wdContext.node<Value Node>().addElement(ele<Value Node>);

ele<Value Node>.set<Value Attribute>(wdContext.node<Model Node>().current<Model Node>Element().get<Model Attribute>());

ele<Value Node>.set<Value Attribute>(wdContext.node<Model Node>().current<Model Node>Element().get<Model Attribute>());

wdContext.node<Model Node>().moveNext();

}

For Inserting data from Value Node to Model Node

// Create the structured input parameters required for this RFC

Z<RFC_Structure_Name> obj<RFC_Structure_Name> eleT_Save = new Z<RFC_Structure_Name>();

IPrivateSampleView.I<Model_Structure_Name>Element ele<Model_Structure_Name> = wdContext.node<Model_Structure_Name>().create<Model_Structure_Name>Element(obj<RFC_Structure_Name>);

wdContext.nodeT_Save().addElement(eleT_Save);

wdContext.node<Table_Value_Node>().moveFirst();

for(int i = 0; i < wdContext.node<Table_Value_Node>().Size(); i++)

{

ele<Model_Structure_Name>.setPernr(wdContext.currentContextElement().getEmpID().replaceFirst("M", "0"));

wdContext.node<Table_Value_Node>().moveNext();

}

wdContext.currentZ<RFC_Model_Name>_InputElement().modelObject().addT_Save(objZ<RFC_Structure_Name>);

/**************************************************************************/

//Execute RFC

wdThis.wdGetSampleCustController().executeZvisa_Save_Input();

/**************************************************************************/

wdComponentAPI.getMessageManager().reportSuccess("Your Details has been saved successfully");

wdContext.currentZ<RFC_Model_Name>_InputElement().modelObject().removeT_Save(obj<RFC_Structure_Name>);

Are the above code snippets correct? Instead of populating the Value Node in a WDJ View; same can be achieved in WDJ Component Controller; so, it would IPublic instead of IPrivateSampleView. Also,

ele<Model_Structure_Name>.setPernr(wdContext.currentContextElement().getEmpID().replaceFirst("M", "0"));

wdContext.node<Table_Value_Node>().moveNext();

can be replaced by the below code:

ele<Model_Structure_Name>.setPernr(wdContext.getElementAt(I).getEmplID().replaceFirst("M","0"));

Let me know if my approach is correct. Also, after creating the model in WDJ DC, Adding the model as a usage in dc reference. Model binding and context mapping with Component Controller Value Node. Value Node must be created before context mapping. Parent Model Object should be created as a reference and passed in the child dcs as objects. Could let me if my approach is correct in adaptive RFC Model.

Best Regards

sap portal learner