problem with setting the value of a model attribute

[Former Member]

Hello,

In the controller's context I have some model

nodes and attributes (this structure is mapped

into another structure in the data layer).

I want to set the values of these model attributes

from Java code. I am seting the value the

following way:

int docId = 5;

wdThis.wdGetDocumentController().wdGetContext().nodeRequest_DocumentsSoap_updateDoc1().nodeChanges().nodeUpdateDoc1Dinfo().currentUpdateDoc1DinfoElement().setDocId(docId);

This compiles and runs without any errors, but

when I check if the value has been set, it appears

that it is null. I am checking the current value

of the model attribute this way:

wdThis.wdGetDocumentController().wdGetContext().nodeRequest_DocumentsSoap_updateDoc1().nodeChanges().nodeUpdateDoc1Dinfo().currentUpdateDoc1DinfoElement().getDocId();

So it seems that even though the model nodes/attributes

appear in the mapping editor, at runtime they do not

exist. Why?

Thanks a lot in advance for any help.

Greetings,

Tomek.

[Former Member]

hi

please check if you have any wdcontxt.node<nodename>.invalidate() before you check the content of the attribute you have set.

[Former Member]

Hi Raul,

I have added the invalidate() calls, but the results

are exactly the same.

The values in the controler's context are mapped into

web service's model. Calling a web service fails

because the required values are not set.

Greetings,

Tomek.

[Former Member]

Sometimes (in earlier versions of WD) after re-generation of model mapping between model attributes / context attributes becomes inconsistent.

Check <b>referencedProperty</b> for corresponding attribute in context node -- it should populated, otherwise edit model binding of context.

VS

[Former Member]

Hi Valery,

I have checked that for all model attributes

the "referencedProperty" is set correctly. So

this is not the case.

Greetings,

Tomek.

[Former Member]

Well,

Then 2 things make me wonder:

1. In your original question you say that you are assigning <b>int <i>5</i></b>, but get <b>null <i>reference</i></b>??? Do your model class attribute getter and setter compatible to each other???

2. What type of model are you using? Once I had used JavaBean model and make silly error: I simply forgot to save value passed in setter in instance field. Probably you have same kind of error in your model class?

VS

[Former Member]

Hi Valery,

the model I use is a web service's data model

(created with "Create Model" >> "Import Web

Sevices Model").

The reason I wrote I am getting a null reference

is that when I run the application, and come to

a point when the web service is called, I get

the following error:

"Service call exception; nested exception is: com.sap.engine.services.webservices.jaxrpc.exceptions.XmlMarshalException: XML Serialization Error. Property [Dinfo] of class [pl.prokom.infos.document.metrykaplustresc.proxies.types.Doc] must exist and can not be null. This is required by schema description."

I set the value in the context this way:

wdThis.wdGetDocumentController().wdGetContext().nodeRequest_DocumentsSoap_updateDoc1().nodeChanges().nodeUpdateDoc1Dinfo().currentUpdateDoc1DinfoElement().setDocId(docId);

(where docId is of type int), and read the value (to see

if it has been actually set) this way:

displayMessage(">> docId is " + wdThis.wdGetDocumentController().wdGetContext().nodeRequest_DocumentsSoap_updateDoc1().nodeChanges().nodeUpdateDoc1Dinfo().currentUpdateDoc1DinfoElement().getDocId());

When I display the above message, the docId value reported

is 0, but then there is that error message which

indicates it is null.

Greetings,

Tomek.

[Former Member]

Hello,

I have noticed one more thing... The structure in the

controller's context I have to fill in is quite complex.

The root model node contains both other model nodes

as well as model attributes. The problem I described

in my previous posts regards only those model attri-

butes which are nested deeply in the hierarchy (i.e.

that are not direct children of the root model node).

For example, if the context structure is:

Context

ModelNode1

ModelNode11

modelAttribute111

modelAttribute112

modelAttributeA

modelAttributeB

I can set the values of modelAttributeA and

modelAttributeB (direct children of the

ModelNode1 root node). But if I try to set

the value of modelAttribute111, it doesn't

get set.

Thanks for any help.

Greetings,

Tomek.

[Former Member]

Hello,

I have noticed one more thing... The structure in the

controller's context I have to fill in is quite complex.

The root model node contains both other model nodes

as well as model attributes. The problem I described

in my previous posts regards only those model attri-

butes which are nested deeply in the hierarchy (i.e.

that are not direct children of the root model node).

For example, if the context structure is:

->Context

-->>ModelNode1

-

---

>>ModelNode11

-

---

>>modelAttribute111

-

---

>>modelAttribute112

-

---

>>modelAttributeA

-

---

>>modelAttributeB

I can set the values of modelAttributeA and

modelAttributeB (direct children of the

ModelNode1 root node). But if I try to set

the value of modelAttribute111, it doesn't

get set.

Thanks for any help.

Greetings,

Tomek.

[Former Member]

I am not sure but this might help you I did it this way (I got the idea from one of the tutorials)

My context structure is

ValueNode - ValueNode - ValueAttributes

eg

StockOverview

PlantStorageLocationDetails <-- These are nodes

StorageName <-- These are attributes

StorageAddress

In my code I have the following

IPublicCntlr_StockOverview.IStockOverviewElement soElement = wdContext.createStockOverviewElement();

//The creation of a new inner node element instance requires

// the existance of a parent node element already bound to the

// parent node. So call method addElement() before.

wdContext.nodeStockOverview().addElement(soElement);

Collection col = storageOverview.values();

for(Iterator soValues = col.iterator(); soValues != null && soValues.hasNext();){

StockOverviewBO soBOF = (StockOverviewBO)soValues.next();

IPublicCntlr_StockOverview.IPlantStorageLocationDetailsElement pslElement = wdContext.createPlantStorageLocationDetailsElement();

pslElement.setStorageName(soBOF.getStorageName());

pslElement.setStorageAddress(soBOF.getStorageAddress());

wdContext.nodePlantStorageLocationDetails().addElement(pslElement);

}

Hope this helps

[Former Member]

Hello Devlin,

I have tried to create the node "manually"

as you suggested, but it did not help.

I think the problem is elsewhere...

The attributes in the context I have problem

with are mapped into web service's model.

In the same project I also call other web

services, and with them this problem does

not appear.

Greetings,

Tomek.