Iterating through View Object RowIterator Bug.

I use this code to loop through the rows of a view object (As described in javadoc of RowIteratior).
public String checkIterations() {
String res = "Iterated through : ";
RowIterator view = this.getDepartmentsView1();
view.reset();
Row row;
while ((row = view.next()) != null) {
System.out.println("rownum: " + row.getAttribute("RowNum"));
res += row.getAttribute("RowNum") + " ";
return res;
Yet this code never goes through the first row if the executequery has been performed for view object.
details:
[http://adfbugs.blogspot.com/2009/07/iterating-through-view-object.html]
Is this a bug?
Edited by: mkonio on Jul 28, 2009 11:41 PM

Thanks Andrejus and Steve.
Its a development bug
problem and solution described in:
Fusion Developer's Guide for Oracle ADF
9.7.6 What You May Need to Know About Programmatic Row Set Iteration

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<metadata-namespaces>
<namespace metadata-store-usage="mdsRepos" path="/sessiondef/"/>
<namespace path="/model/" metadata-store-usage="mdsRepos"/>
</metadata-namespaces>
<metadata-store-usages>
<metadata-store-usage default-cust-store="true" deploy-target="true" id="mdsRepos">
<metadata-store class-name="oracle.mds.persistence.stores.file.FileMetadataStore">
<property name="metadata-path" value="/tmp"/>

</metadata-store>
</metadata-store-usage>
</metadata-store-usages>
</persistence-config>
</adf-config>
//////////////////////////////////////////////////////////////////////////////////////////////////////////

Hi Frank,
I m trying to save entity and view object xml by calling writeXMLContents() and saveXMLContents() so that these objects can be retrieved using the xmls later on.
These methods internally use MDS configuration in adf-config.xml, which is creating the issue.
Please share your thoughts on resolving this or if, there is any other way of creating dynamic entity/view objects for db tables created at runtime.
Nik

View Object in the link - CREATION

Below is the table schema. master1, slave2, cat3 are in the LINK.
Master1 -----> Slave2 ------> Cat3.
(id) (id, masterId) (id, slaveId)
We are having the UIX pages to traverse starting for Master1 and down to Cat3.
We need to have a url that takes us directly to the Cat3 UIX page.
ex : www.something.com/catsBrowse.do?catdId=xxx&slaveId=yyy&masterId=zzzz.
I am trying to initialize the view object. But on executeQuery(). It gives an exception.
How do I initialize it. Is there any samples available???
- Thanks.

Hi,
using ADF:
1. Create a page that shows data for cat3
2. Using the ADF binding (e.f. accessing it from a Struts Action) obtain teh iterator for master1 and set it to a specific row.
3. Do the same for Detail 2
4. Navigate to page cat3
Note that you don't need to access teh VO drectly but can handle this all through the binding framework
Frank

Af:iterator and view accessors with bind variables

I have a page with an af:iterator where I list up each row in a form layout. On each row there are 2 SelectOneChoice items where the current value is provided by the row. The 2 LOVs are Master-Detail-LOVs. The value of the first one restricts the values of the second one.
Each LOV is represented by a LOV view object in a shared application module. The view object for the second LOV contains a view criteria with a selection on the column where the value is provided by the first LOV. The value for the restriction is passed via Bind Variable.
<af:iterator id="i_images" value="#{bindings.Image.collectionModel}" var="row" rows="0" varStatus="vs">
<af:selectOneChoice value="#{row.bindings.Master.inputValue}" label="#{bindings.Master.label}" id="soc_master" autoSubmit="true">
<f:selectItems value="#{row.bindings.Master.items}"
id="si3"/>
</af:selectOneChoice>
<af:selectOneChoice value="#{row.bindings.Detail.inputValue}" label="#{bindings.Detail.label}" id="soc2" partialTriggers="soc_master">
<f:selectItems value="#{row.bindings.Detail.items}"
id="si2"/>
</af:selectOneChoice>
The view accessor for both LOVs have the settings:
Row Level Bind Values = true
SharedInstance = false
BTW: If I modify one the two view accessor the value for Row Level Bind Values disappear.
The value for the bind variable on the view accessor is "Master" like the name of the column.
On loading the page for the first time the LOVs and the values are properly resolved. The master LOV provides the list with all values and the Detail LOV is restricted corresponding the value of the Master LOV. Upon changing the value of the Master LOV the Detail LOV is reloaded, because of the partial trigger, but now the Detail LOV contains all the values as if now View Criteria has been provided.
We implemented this scenario in an af:query and it worked fine. Are there any restrictions for View Accessors when using an af:iterator??
Any help is appreciated.
Thanks,
Thomas
P.S.: We're using JDeveloper 11.1.1.4.0
Edited by: thomas.matzke on Apr 20, 2011 10:07 PM

Hi Thomas,
You may be hitting an error that is discussed in the following blog: http://andrejusb.blogspot.com/2011/03/adf-bc-dependent-lov-11g-ps2ps3-bug-and.html
Hope this helps!
Russell

Iterating through View Object RowIterator Bug.

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