JDev 10.1.2: Order by transient attribute

Hello
I'm using jdeveloper 10.1.2, with ADF Struts and jsp's.
I need to order the query of a view object by a transient attribute. Is this possible? How can I do it?
Thanks in advandce

The bean property will have an initial lowercase name, so try sessionScope.User.username ?
I believe since you used the jsp:useBean, that you can also just use User.username without the "sessionScope" in there, as well.

Similar Messages

Migration issue on default value for transient attribute in 11.1.2

Experts,
I migrated my JDev 11.1.1.5 project to JDev 11.1.2. After successful migration i began to run the project and it ran without issue. In the application however when i clicked on any link or button i get the following exception
oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.lang.NullPointerException, msg=Cannot get property 'saleType' on null object
Caused by: java.lang.NullPointerException: Cannot get property 'saleType' on null object
     at org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:56)
     at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:154)
     at org.codehaus.groovy.runtime.callsite.NullCallSite.getProperty(NullCallSite.java:29)
     at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:237)
     at bc4j_com_xxx_portal_model_uiView_SaleVO_SaleTypeTransient_null_gs.run(bc4j_com_xxx_portal_model_uiView_SaleVO_SaleTypeTransient_null_gs.groovy:1)
     at oracle.jbo.ExprEval.internalEvaluateGroovyScript(ExprEval.java:1200)
In my SaleVO i have a transient attribute whos value is set as
adf.userSession.userData.saleType == 'ORGANIZATION' ?
                           'LOV_PartyTypeOrg' : 'LOV_PartyType'When i print the value from user session i am getting a value there, so a bit confused about the NPE here.
Please advice
Jdev 11.1.2

Hi,
this is something you should report to customer support to have them looking at this and helping you out
Frank

Issue with value of transient attribute after filtering or sorting a table

Hi guys,
i'm using jdev 11.1.1.4.0 .
i've the use case :
 - a table with a column containing a checkbox to mark the selection of a row
<af:column align="center" sortProperty="TemIsChosen" filterable="true"
sortable="true" id="c6">
<af:selectBooleanCheckbox value="#{row.bindings.TemIsChosen.inputValue}" autoSubmit="true"
shortDesc="#{bindings.ServersIndicTempVVO.hints.TemIsChosen.tooltip}"
id="sbc1"
valueChangeListener="#{backing_initIndicatorsTemp.onSelectTemp}"/>
</af:column>
 - i select one or more rows with checkboxes
 - if i filter or sort the table, the selection of the checkboxes reset to not selected (value false by default).
 I understand that for the framework, it's a normal behavior because for filtering or sorting , it re-executes the query from database. And transient attribute is not persistent, so it goes back to the default initial value "false".
 What i would appreciate, it's that filtering or sorting has no effect on the value of the transient attribute, ie end user selection remains.
 I tried to modify query mode of the ViewObject to filter with in-memory data. It works fine but if you reset filter inputs you can't retrieve correct RowSet. Only new RowSet is stored, old is lost.
 So now it's the filtering feature that doesn't work as expected.
 How can i implement my use case withouth the troubles i've described.
Best regards,
David

Hi Frank,
 no it's a view object level attribute inside a read-only view object.
The view object doesn't use any entity.
Here is the definition of the attribute in the xml file of the VO, if can help you :
<ViewAttribute
 Name="TemIsChosen"
 IsSelected="false"
 IsPersistent="false"
 PrecisionRule="true"
 Type="java.lang.Boolean"
 ColumnType="BIT"
 AliasName="VIEW_ATTR"
 SQLType="BIT"
 Passivate="true">
 <Properties>
 <SchemaBasedProperties>
 <TOOLTIP
 ResId="ADD"/>
 <DISPLAYWIDTH
 Value="50"/>
 </SchemaBasedProperties>
 </Properties>
</ViewAttribute>
David

Can Shuttles be based non-base table ViewObjects with transient attributes

Hello,
Users have to select records from a data collection and a Shuttle looks most appropriate/nice for this purpose. We can introduce technical intersection tables in order to generate the Shuttles with JHeadstart 10g R3 if necessary, but there is no “functional” need to update any data in the database and therefore it would be practical if the ‘right’ side from a Shuttle can be based non-base table ViewObjects with transient attributes only. So, our interested is to know which records have been selected, i.e. moved to the right side from the Shuttle.
Hope that my question is clear enough.
Greetings,
Michael

Michael,
This cannot be generated out-of-the-box.
It is easiest to add the shuttle post-generation to your page, and then create a custom template to generate your custom shuttle into the page. I suggest you take a look at an example of a generated shuttle in a page, and the JHeadstart IntersectionShuttleBean class. You will see that the value property of <af:selectManyShuttle> points to the selectedKeys method in the JHeadstart Shuttle bean. In your case, you can create your own managed bean and bind the value property to your own method which will provide you access to the selected rows. The value property of the selectItem within the af:selectManyShuttle determines the property that is used to identify the selected row (which is the row key in case of Jhs-generated shuttles).
Steven Davelaar,
JHeadstart Team.

What is the default value of boolean type transient attribute in VO?

Hi All,.
jdev version-11.1.2.1.0
i have created one vo based on eo where i add one boolean type transient attribute Marked(uihint checkbox).
now i have apply view criteria on this vo.
like---
     ViewObject vo=getView(iterator);
     vo.setQueryMode(ViewObject.QUERY_MODE_SCAN_VIEW_ROWS);
     ViewCriteria vc=vo.createViewCriteria();
     ViewCriteriaRow vcr=vc.createViewCriteriaRow();
     vcr.setAttribute("Marked", "true");//Setting attribute on view criteria.
       vcr.setConjunction(ViewCriteriaRow.VCROW_CONJ_AND);
       vc.setCriteriaMode(ViewCriteria.CRITERIA_MODE_CACHE);
     vo.applyViewCriteria(vc);//Apply view criteria on vo.
     vo.executeQuery();
     vc.add(vcr);
   vo.executeQuery();this code running fine and that is selected only those row which i have cheked.
but now i want to apply view criteria that select select those rows that are not checked.
like-
vcr.setAttribute("Marked", "false");but it is not return any row.
if select checked any row and then uncheked that row so marked attribute for this row set false. but rows that are unchecked by default not return.
so my question is that what is default value of Marked attribute when user not take any action i will try
vcr.setAttribute("Marked","null");
but not working.

i have tried this but this is not working.
follwing code working for Null case not for False
vcr.setAttribute("Marked","is null"); this code display all rows who has null but when i checked any row and then unchecked so that row get value "false" also not display.

Problem extending a VO with transient attributes

I am trying to extend a VO that is based on a query with a Binding Style of Oracle Positional.
The Attributes that are listed for the original VO are the attributes from the Query Statement plus some transient attributes.
I extended the VO by modifying the query. Added my two columns at the END of the Select statement.
Successfully substituted the VO but I am getting a runtime error when saving a record.
Reviewed the extended VO and noticed that the new columns are listed as attributes AFTER the transient attributes.
This could be the cause of the runtime error since one of the transient attributes listed after the query attributes is RowChanged.
How can I force my new attributes to be positioned BEFORE the transient attributes?
Is this the problem or is it something else?
Thanks for any suggestions.

Runtime error:
java.lang.NullPointerException
at oracle.apps.pos.supplier.server.ByrSuppAMImpl.validateDffVo(ByrSuppAMImpl.java:3575)
Yes, I have checked the attributes (Updateable Always, etc.) and the attribute mappings and they all seem fine.
My two new attributes are at the end of the original attributes. I think my new attributes should NOT be at the end of the original attributes because the original VO.xml has attributes from the query and then transient attributes that are not from the query. My extended VO now has the attributes from the original query, the transient attributes, and then my new attributes from the query.
The first two transient attributes are RowChanged and RenderFlex and it seems like OAF is confusing it with my new attributes because:
(1) the runtime error I get when saving (RowChanged attribute)
(2) the Flex field icon grays out after my VO extension was deployed (RenderFlex attribute)
To test out my theory, I would like to move my new attributes to be listed BEFORE the transient attributes.
I tried editing the VO.xml file by moving my new attributes (query-related) to the end of the other query-related attributes and before the transient attributes (that are not query-related). When I try to view my changes inside JDeveloper, the attributes are shown in the new order (on the left) but the query mappings are still listed in the old order.
Where can I re-order the query mappings? Tried using the up/down arrows on the right but it's grayed out.
If I re-order the attributes in the VO.xml file and save it, is that all the change I need to do?
Thanks.

Null Pointer Exception after adding Transient attribute in View Object

Hello Experts
I am using Jdev 11.1.2.3. I have added a transient attribute in view object and set default value to another view object attribute via view accessor of view link between view objects. the value of expression is ItemMasterRO.Description, where ItemMasterRO is the name of view accessor define in the view link and Description is the name of attribute which is in other view object.
Data is retrieving as per my requirements, but when i click on add record button in application module, it is throwing a null pointer exception. Here is stack trace
oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.lang.NullPointerException, msg=null
    at oracle.jbo.ExprEval.internalEvaluateGroovyScript(ExprEval.java:1218)
    at oracle.jbo.ExprEval.doEvaluate(ExprEval.java:1253)
    at oracle.jbo.ExprEval.evaluateForRow(ExprEval.java:1075)
    at oracle.jbo.server.AttributeDefImpl.evaluateTransientExpression(AttributeDefImpl.java:2132)
    at oracle.jbo.server.ViewRowStorage.getAttributeInternal(ViewRowStorage.java:1856)
    at oracle.jbo.server.ViewRowImpl.getAttributeValue(ViewRowImpl.java:1967)
    at oracle.jbo.server.ViewRowImpl.getAttributeInternal(ViewRowImpl.java:829)
    at oracle.jbo.server.ViewRowImpl.getAttrInvokeAccessor(ViewRowImpl.java:911)
    at oracle.jbo.server.ViewRowImpl.getAttribute(ViewRowImpl.java:859)
    at oracle.jbo.uicli.binding.JUCtrlValueBinding.internalGetAttributeValueFromRow(JUCtrlValueBinding.java:1213)
    at oracle.jbo.uicli.binding.JUCtrlValueBinding.getAttributeFromRow(JUCtrlValueBinding.java:764)
    at oracle.jbo.uicli.binding.JUCtrlValueBinding.getAttributeFromRow(JUCtrlValueBinding.java:792)
    at oracle.jbo.uicli.binding.JUCtrlAttrsBinding.updateValuesFromRow(JUCtrlAttrsBinding.java:145)
    at oracle.jbo.uicli.jui.JULabelBinding.updateValuesFromRow(JULabelBinding.java:114)
    at oracle.jbo.uicli.binding.JUIteratorBinding.updateValuesFromRows(JUIteratorBinding.java:349)
    at oracle.adf.model.binding.DCIteratorBinding.setupRSIstate(DCIteratorBinding.java:867)
    at oracle.adf.model.binding.DCIteratorBinding.refreshControlAndNotifyDCE(DCIteratorBinding.java:707)
    at oracle.adf.model.binding.DCIteratorBinding.refreshControl(DCIteratorBinding.java:676)
    at oracle.jbo.uicli.binding.JUIteratorBinding.refreshControl(JUIteratorBinding.java:485)
    at oracle.adf.model.binding.DCIteratorBinding.refresh(DCIteratorBinding.java:4555)
    at oracle.adf.model.binding.DCBindingContainer.refreshExecutables(DCBindingContainer.java:3542)
    at oracle.adf.model.binding.DCBindingContainer.internalRefreshControl(DCBindingContainer.java:3375)
    at oracle.adf.model.binding.DCBindingContainer.refreshControl(DCBindingContainer.java:2938)
    at oracle.jbo.jbotester.NavigationBar.doInsertAction(NavigationBar.java:143)
    at oracle.jbo.jbotester.NavigationBar.doAction(NavigationBar.java:110)
    at oracle.jbo.uicli.controls.JUNavigationBar$NavButton.actionPerformed(JUNavigationBar.java:118)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
    at java.awt.Component.processMouseEvent(Component.java:6289)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
    at java.awt.Component.processEvent(Component.java:6054)
    at java.awt.Container.processEvent(Container.java:2041)
    at java.awt.Component.dispatchEventImpl(Component.java:4652)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4482)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
    at java.awt.Container.dispatchEventImpl(Container.java:2085)
    at java.awt.Window.dispatchEventImpl(Window.java:2478)
    at java.awt.Component.dispatchEvent(Component.java:4482)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:644)
    at java.awt.EventQueue.access$000(EventQueue.java:85)
    at java.awt.EventQueue$1.run(EventQueue.java:603)
    at java.awt.EventQueue$1.run(EventQueue.java:601)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
    at java.awt.EventQueue$2.run(EventQueue.java:617)
    at java.awt.EventQueue$2.run(EventQueue.java:615)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:614)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.lang.NullPointerException
    at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.acceptGetProperty(PogoGetPropertySite.java:32)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:237)
    at bc4j_com_syncreon_model_queries_SequenceItemContainerXrefVO_ItemDescription_null_gs.run(bc4j_com_syncreon_model_queries_SequenceItemContainerXrefVO_ItemDescription_null_gs.groovy:1)
    at oracle.jbo.ExprEval.internalEvaluateGroovyScript(ExprEval.java:1200)
    ... 62 more
## Detail 0 ##
java.lang.NullPointerException
    at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.acceptGetProperty(PogoGetPropertySite.java:32)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:237)
    at bc4j_com_syncreon_model_queries_SequenceItemContainerXrefVO_ItemDescription_null_gs.run(bc4j_com_syncreon_model_queries_SequenceItemContainerXrefVO_ItemDescription_null_gs.groovy:1)
    at oracle.jbo.ExprEval.internalEvaluateGroovyScript(ExprEval.java:1200)
    at oracle.jbo.ExprEval.doEvaluate(ExprEval.java:1253)
    at oracle.jbo.ExprEval.evaluateForRow(ExprEval.java:1075)
    at oracle.jbo.server.AttributeDefImpl.evaluateTransientExpression(AttributeDefImpl.java:2132)
    at oracle.jbo.server.ViewRowStorage.getAttributeInternal(ViewRowStorage.java:1856)
    at oracle.jbo.server.ViewRowImpl.getAttributeValue(ViewRowImpl.java:1967)
    at oracle.jbo.server.ViewRowImpl.getAttributeInternal(ViewRowImpl.java:829)
    at oracle.jbo.server.ViewRowImpl.getAttrInvokeAccessor(ViewRowImpl.java:911)
    at oracle.jbo.server.ViewRowImpl.getAttribute(ViewRowImpl.java:859)
    at oracle.jbo.uicli.binding.JUCtrlValueBinding.internalGetAttributeValueFromRow(JUCtrlValueBinding.java:1213)
    at oracle.jbo.uicli.binding.JUCtrlValueBinding.getAttributeFromRow(JUCtrlValueBinding.java:764)
    at oracle.jbo.uicli.binding.JUCtrlValueBinding.getAttributeFromRow(JUCtrlValueBinding.java:792)
    at oracle.jbo.uicli.binding.JUCtrlAttrsBinding.updateValuesFromRow(JUCtrlAttrsBinding.java:145)
    at oracle.jbo.uicli.jui.JULabelBinding.updateValuesFromRow(JULabelBinding.java:114)
    at oracle.jbo.uicli.binding.JUIteratorBinding.updateValuesFromRows(JUIteratorBinding.java:349)
    at oracle.adf.model.binding.DCIteratorBinding.setupRSIstate(DCIteratorBinding.java:867)
    at oracle.adf.model.binding.DCIteratorBinding.refreshControlAndNotifyDCE(DCIteratorBinding.java:707)
    at oracle.adf.model.binding.DCIteratorBinding.refreshControl(DCIteratorBinding.java:676)
    at oracle.jbo.uicli.binding.JUIteratorBinding.refreshControl(JUIteratorBinding.java:485)
    at oracle.adf.model.binding.DCIteratorBinding.refresh(DCIteratorBinding.java:4555)
    at oracle.adf.model.binding.DCBindingContainer.refreshExecutables(DCBindingContainer.java:3542)
    at oracle.adf.model.binding.DCBindingContainer.internalRefreshControl(DCBindingContainer.java:3375)
    at oracle.adf.model.binding.DCBindingContainer.refreshControl(DCBindingContainer.java:2938)
    at oracle.jbo.jbotester.NavigationBar.doInsertAction(NavigationBar.java:143)
    at oracle.jbo.jbotester.NavigationBar.doAction(NavigationBar.java:110)
    at oracle.jbo.uicli.controls.JUNavigationBar$NavButton.actionPerformed(JUNavigationBar.java:118)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
    at java.awt.Component.processMouseEvent(Component.java:6289)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
    at java.awt.Component.processEvent(Component.java:6054)
    at java.awt.Container.processEvent(Container.java:2041)
    at java.awt.Component.dispatchEventImpl(Component.java:4652)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4482)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
    at java.awt.Container.dispatchEventImpl(Container.java:2085)
    at java.awt.Window.dispatchEventImpl(Window.java:2478)
    at java.awt.Component.dispatchEvent(Component.java:4482)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:644)
    at java.awt.EventQueue.access$000(EventQueue.java:85)
    at java.awt.EventQueue$1.run(EventQueue.java:603)
    at java.awt.EventQueue$1.run(EventQueue.java:601)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
    at java.awt.EventQueue$2.run(EventQueue.java:617)
    at java.awt.EventQueue$2.run(EventQueue.java:615)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:614)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Please advice....
Thanks

Hi,
Just the exception stack without any information like what JDev version, what expression you've used for the default value of the transient attribute etc., is not enough for us to help you.
-Arun

Creating Transient Attributes when query is in Expert Mode

I wanted to share a recent challenge I encountered. I had created a transient attribute in my View Object and placed it on my .jspx page. When I would navigate to the page I would receive an error telling me, "oracle.jbo.AttributeLoadException: JBO-27022: Failed to load value at index 42 with java object of type java.lang.String due to java.sql.SQLException.".
After switching my run configuration to include the java option -Djbo.debugoutput = console, I noticed my sql statement was getting modified. I inspected the view object sql and realized the calculation for my transient object was not present. After adding the calculation for the column in my sql, I was able to run the page with no errors.
My problem was that I had my query in expert mode so I could utilize an outer join. When I added the transient attribute after putting the query in expert mode, JDEV would not automatically make the changes to my SQL.
It would really help if JDEV threw an alert to the user letting them know that their query is in expert mode and changes cannot be made to the SQL or it would also help if I remembered what I read in the Dev Guide. Such as when a file is read only.
(JDEV 10.1.3.4)

When I added the transient attribute after putting the query in expert mode, JDEV would not automatically make the changes to my SQL.Really depends on what you meant by ' transient '.
Did you really want a 'calculated' attribute - i.e. one that is backed by a query clause - for this you needed to check the 'mapped to column or sql' in the attribute properties and also provide an SQL expression..
Otherwise, it's just a java 'transient' attribute and doesn't have to be part of the query...

Property not settable error - it is a bug for transient attributes

In WLI 8.1 I get the following error in Workshop on a Client Request method:
"Property <name of transient attribute> of type <Java object type> is not
settable and cannot be unmarshalled from XML."
In my opinion it is an error, because it tries to serialize and deserialize
a TRANSIENT attribute via XML, which should
NOT be serialized at all (that's why it is transient).
Regards,
Robert Varga

Roam,
Thanks again for your suggestion,
"Furthermore one should always Repair Permissions both before doing a Software Update and again afterwards."
I honestly dont know anything about this "Repair Permissions" from the name, i though it is a verification of authentication to repair OS or some kind of credential issue, and since i m admin user then there is no point to verify it, i should be allowed to do so. Again it is my first time to do this thing in 3 - 4 years of using panther, every time i update software i never ever do this! If this step is essential for every update and installation why dont apple put them as one of TODO step during the processes (as licensing agreement) instead of keep them as an option (just my thought) Anyway, I m glad u tell me about it, and i will give it a shot tonight.
"That may because you didn't have sufficient disk space. In fact running out of disk space can create all sorts of problems. Please tell me how disk space is available on your
start up drive."
That what I thought coz i have only 5.x GB left in 60 GB HD. Thats why I claimed as whining and have to scarify the lost of data by reinstall panther in order to get my mac back to work
"So are you saying it is a bug or it is a hacker, I don't believe it is either"
Please see second update info about password, and i m not impose anyone to believe, thats why the topic is a questioning sentence "Is this a bug.."
"This Discussion site is not Applecare. The people here give their time voluntarily to those who are receptive to help."
Thats why i ask for "mac expert" not "apple authority/technician" and always appreciate any suggestion.
Anyway, that great to hear from you and i have learned new thing from your suggestion. I will let u know when i have tried it.

ViewObject Transient Attribute Refresh...

Hi All,
I and using JDeveloper 11.1.1.6.0
I have a transient attribute that gives me the total cost of orders whose boolean attribute is true.
The transient attribute works fine, but at runtime when the boolean is changed to false the attribute does not refresh. I've tried setting partial refresh and that still does not work. the updated value of the total cost is only displayed when a new session is created.
How do I get this transient attribute to update as im changing the boolean checkbox value e.g true to false and the other way around.?
Thanks.

What is a "new session"?
I think there is no enough information to help you.
Where are you doing the calculations? On the transient attribute settings or in a Managed Bean?
If you have calculations on the trasient attr then "Always" the calculations will be done after you filled the fields values and your boolean attr will be ignored.
Jhon

Sort view object rows with transient attributes

Hi ,
Is it possible to sort the results of a view object based on the populated transient attributes ?
Best regards
K

K,
Have you had a look at section 27.5 of the ADF Developer's Guide for Forms/4GL Developers ("Performing In-Memory Sorting and Filtering of Row Sets") - I've not tried it with transient attributes, but it does describe how to do in-memory sorting, as opposed to the normal way of sorting which is to send an ORDER BY to the database.
Hope this helps,
John

Passivate Transient Attributes

I have a transient attribute in a View Object that reflects the results of a costly calculation. Passivate to PS_TXN seems to me the best way to keep the result from one request to another.
1. Has the calculated value to be cached by setAttributeInternal in the view row internal buffer, or has it to be cached as a member of the view row impl ?
Passivation calls the getter, so it makes no difference. But how are members of view row objects cleared in the case they are "recycled" ?
2. It seems to me that activating a transient attribute is somewhat buggy: the getter is always called before the restored value appears in the mInner-mCalcs member of a view row, which calculates the value unnecessarily. If the value was not cached with setAttributeInternal, it never appears in mCals.

If your transient attributes are updateable, but you use them only within the scope of a single request (e.g. you set the value within a particular request and use it only until the end of this request but not later), then you do not have to passivate them. However, if they are updateable and you need their values to survive across multiple requests, then you must ensure that these attributes are passivated. In order to configure them to passivate you should do the following:
1. Check the checkbox "Passivate State (e.g. Current Row, Bind Variables, etc.)" in the section "General/Tunning" in VO's definition dialog box;
2. Either check the checkbox "Including All Transient Values" in the same section or leave it unchecked but check the checkbox "Passivate" in the definition of the corresponding VO attributes.
N.B. The setting "Include All Transient Values" affects not only the transient VO attributes but the SQL-derived VO attributes (that are not entity-based) too.
The configuration parameter "jbo.txn.disconnect_level" has nothing to do with passivation/activation. The correct way to test if your VOs behave correctly under passivation/activation is to disable AM pooling (e.g. to uncheck the checkbox "Enable Application Module Pooling" in the corresponding AM Configuration dialog box). When AM Pooling is disabled ADF passivates the corresponding AM state at the end of each HTTP request and activates it at the beginning of next request and so on. In this way you can check if your VOs are passivation/activation-safe.
Please, have a look at the article [url http://docs.oracle.com/cd/E23943_01/web.1111/b31974/bcstatemgmt.htm#sm0318]Application State Management in the documentation for more information and detailed explanation.
Dimitar

Binding transient attributes

I have a transient attribute in my EntityObject and a corresponding attribute in my ViewObject. It seems that the JUTextFieldBinding created by:
setDocument(JUTextFieldBinding.createAttributeBinding(panelBinding, jTextArea, "ViewName", null, "ViewIter", "AttributeName")));
doesn't call setAttribute() when the JTextArea's text is changed bu the user.
I can listen for focusLost myself and set the attribute and all is fine.
Everything is also fine for persistent attributes.
I'm not sure if I'm creating a transient or Entity-derived ViewObject attribute here. The documentation describes both but fails to say how to create them. Is it dependent on the ViewObject attribute name matching an EntityObject attribute name?
Tony.

Tony,
Transient attributes are not treated differently at the JClient level. I tried (using JDev 9.0.3.1) your scenario and was able to update a TextArea mapped to a entity-derived (transient at entity-level) View Attribute with a name different from the Entity-Attribute name and was able to update it's value, move to another row, come back and the value was there.

Sorting transient attributes

Does anyone know how to take advantage of adf/uix built in sorting for view objects that contain only transient fields? For example, when I build a view object that references an entity object, sorting (via a uix table tag) works great. However, when using a view object with only transient attributes, sorting does not work through a uix table. Any ideas would really be appreciated...

FYI,
I've figured this out for anyone that sees this post in the future. Here's how to do it.
1 Open the transient view object in the view object editor (by double-clicking on the view object).
2 Select Java.
3 Press the Class extends button.
4 For Object, browse to the following class: SortableTransientViewObject (see below for implementation)
5 Press OK.
6 Select Attributes.
7 For each attributes:
1. Select the "Selected in Query" property.
2. Copy the exact name of the attribute to the query column alias field.
8 Press OK.
SortableTransientViewObject implementation:
=============================================================
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import oracle.jbo.Row;
import oracle.jbo.RowSetIterator;
import oracle.jbo.server.ViewObjectImpl;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import oracle.jbo.NoDefException;
public class SortableTransientViewObject extends ViewObjectImpl
//flag for determining an invalid column index
public static final int INVALID_COLUMN_INDEX_FLAG = -1;
//default sort to INVALID_COLUMN_INDEX_FLAG
private int sortColumnIndex = INVALID_COLUMN_INDEX_FLAG;
private boolean sortAscending = true;
* Sole constructor. Do not remove.
public SortableTransientViewObject()
* Sets the default sort order. If the order has not been pre-defined, then the
* sort will not be executed when the view object is first created.
* @param sortField the sort field index. Each view object row implementation
* defines these attributes indices as constants. Those values are the values
* that should be used for this method.
* @param sortAscending sort ascending if true; descending otherwise.
public void setDefaultSortOrder( int sortField, boolean sortAscending )
this.setSortColumnIndex( sortField );
this.setSortAscending( sortAscending );
* ADF Framework extension.
* 
* This method is called by ADF when a view object is to be refreshed. In
* the case of sorting, this signals that the view object should be sorted.
* The ADF framework will have already called the setOrderByClause() method
* which tells this view object what to sort by.
public void executeQuery()
sort( getSortColumnIndex(), isSortAscending() );
* Over-riding to implement sort for transient view object.
* 
* This method will be called by the adf framework whenever a request
* is made to sort the view object through a ui component; most
* likely a table. The orderByClause parameter will always contain
* the sort column and will optionally contain the sort direction.
* 
* This method parses the orderByClass parameter and sets the
* corresponding sort index and direction. This method does not perform
* the actual sort; the sort will not take place until the executeQuery()
* method has been invoked.
* @param orderByClause a string representing the sort column and sort
* direction.
public void setOrderByClause( String orderByClause )
if( isNullOrEmpty( orderByClause ) ||
isNullOrEmpty( orderByClause.trim() ))
this.setSortColumnIndex( INVALID_COLUMN_INDEX_FLAG );
this.setSortAscending( true );
return;
else
orderByClause = orderByClause.trim();
boolean sortAscending = true;
String sortColumn = null;
int spaceCharacterIndex = orderByClause.indexOf( ' ' );
if( spaceCharacterIndex == -1 )
sortColumn = orderByClause;
sortAscending = true;
else
sortColumn = orderByClause.substring( 0, spaceCharacterIndex );
String sortDirectionStringValue = orderByClause.substring( spaceCharacterIndex, orderByClause.length() );
if( isNullOrEmpty( sortDirectionStringValue ) ||
isNullOrEmpty( sortDirectionStringValue.trim() ) )
sortAscending = true;
else
sortDirectionStringValue = sortDirectionStringValue.trim();
if( "desc".equals( sortDirectionStringValue.toLowerCase() ) )
sortAscending = false;
try
this.setSortColumnIndex( this.getAttributeIndexOf( sortColumn ) );
catch( NoDefException e )
this.setSortColumnIndex( INVALID_COLUMN_INDEX_FLAG );
this.setSortAscending( sortAscending );
* Sort helper method.
* 
* Sorts the view object. Because adf's built in sorting only works for
* non-transient attributes (ie attributes from an entity object), this
* method was created as a framework extension to support sorting.
* 
* This method accomplishes sorting by using Java's built in api for
* sorting: the Collections framework. First, all view object rows are
* copied into List object. Second, the list is sorted using Java's built
* in Collections.sort method. Third, all rows are removed from the view
* object and lastly, the view object is re-populated by iterating through
* the list.
* @param sortField the field to sort by.
* @param sortAscending sort ascending if true; descending otherwise.
private void sort( int sortFieldParameter, boolean sortAscendingParameter )
//don't sort if the column index is invalid
if( sortFieldParameter < 0 || sortFieldParameter >= this.getAttributeCount() )
return;
//step 1 - copy all rows to a List object and remove all rows from view object
List list = new LinkedList();
RowSetIterator rowIterator = this.getRowSet().createRowSetIterator( null );
while( rowIterator.hasNext() )
Row rowToAdd = (Row) rowIterator.next();
list.add( rowToAdd );
rowIterator.closeRowSetIterator();
//step 2 - sort the List object.
Collections.sort( list, new ViewObjectRowComparator( sortFieldParameter, sortAscendingParameter ) );
//step 3 - remove all rows from view object
rowIterator = this.getRowSet().createRowSetIterator( null );
while( rowIterator.hasNext() )
rowIterator.next();
rowIterator.removeCurrentRowAndRetain();
rowIterator.closeRowSetIterator();
//step 4 - re-populate the view object with the sorted list.
Iterator sortedValuesIterator = list.iterator();
while( sortedValuesIterator.hasNext() )
Row row = (Row) sortedValuesIterator.next();
this.insertRow( row );
public boolean isSortAscending()
return sortAscending;
private void setSortAscending(boolean sortAscending)
this.sortAscending = sortAscending;
public int getSortColumnIndex()
return sortColumnIndex;
private void setSortColumnIndex(int sortColumnIndex)
this.sortColumnIndex = sortColumnIndex;
=============================================================

Refreshing transient attributes when dependencies change

Hi Team.
I am using JDev 11.1.2.4.
I would like to know if there is an easy way to have a transient value refreshed when data in an association changes. For example, if we have a departments EO and we have an attribute DEPARTMENT_BUDGET which is a transient attribute which has an expression Employees.sum(SAL). How can we trigger refreshing of this attribute when a new employee is added or a salary for an employee changes?
I know we can always force a refresh of the EO, but this seems like a lot of overkill. Is there a simpler way of forcing a refresh when a child table dependency changes? I know you can do this if a different attribute in the same table changes, but I was wondering about the actual child table via an association.
Any suggestions would be great.
BradW

Hi Team.
I am using JDev 11.1.2.4.
I would like to know if there is an easy way to have a transient value refreshed when data in an association changes. For example, if we have a departments EO and we have an attribute DEPARTMENT_BUDGET which is a transient attribute which has an expression Employees.sum(SAL). How can we trigger refreshing of this attribute when a new employee is added or a salary for an employee changes?
I know we can always force a refresh of the EO, but this seems like a lot of overkill. Is there a simpler way of forcing a refresh when a child table dependency changes? I know you can do this if a different attribute in the same table changes, but I was wondering about the actual child table via an association.
Any suggestions would be great.
BradW

JDev 10.1.2: Order by transient attribute

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