Implementing History types on query based view object attributes

Hi All,
I have to implement the history types
created on,
created by,
modified on,
modified by
in my application, but I have all the Query based view objects in my work space, but according to my research History types can only be implemented on the Entity Objects attributes. So how can I do this for my application ? Any Solution ? Any alternative please ?
(NOTE: I have all the entity objects available in my common Model work space ).

@TimoHahn, I have the following master view object query, which i can not generate by using the Entity objects, Basically I am transforming an oracle form base ERP into Oracle ADF application, so I have available all the quries , Please let me know if i can have any alternative solution ?
SELECT NVL(A.STYP,0) STYP,A.DAT,C.BATNO,C.ITST, B.DEMNO,B.ITEM,LTRIM(RTRIM(D.ITEMNAME))ITEM_NAME,0 TRINQ,D.UOM ABRV,P.DAT DDAT,
    A.CSNO,PARTY,NVL(CSRAT,0)+(NVL(CSRAT,0)*NVL(B.GST,0))/100 GSTCSRAT,CSRAT,
    A.PDAYS DAYS, DECODE(C.CSTERM,1,'CASH',2,'CREDIT',3,'DD',4,'PAY ORDER',5,'ADVANCE%',6,'CHEQUE') ,B.GST,E.MASTDS PNAME,NVL(SUM(B.RQTY),0)DRQTY,DEPT.SEC_NAME DEPTDS,SUM(STOK.QTY) BAL,P.TRNO,C.EBY, C.SYSIP, C.TDAT
              FROM ACCSTORE.STAC_CSM A, ACCSTORE.STAC_CSD B,ACCSTORE.ST_STAC_DEM_APRVD C,ACCSTORE.VITEMS D, ACC_MAST E,ACCSTORE.PRE_DEMANDM P,ACCSTORE.VSECTIONS DEPT,
              (SELECT STYP,ITEMID,SUM(BALANCE) QTY FROM ACCSTORE.VITEMSTOCK GROUP BY STYP,ITEMID) STOK
              WHERE A.CSNO=B.CSNO AND B.CSNO=C.CSNO AND B.DEMNO=C.DEMNO AND B.ITEM=C.ITEM AND B.STYP=C.STYP AND C.PDEMNO=P.TRNO(+) AND P.DEPT=DIVNO AND P.SEC_NO=DEPT.SECNO(+)
                          AND C.STYP=STOK.STYP AND C.ITEM=STOK.ITEMID
                AND C.STYP=D.STYP AND C.ITEM=D.ITEMID AND C.PARTY=E.MASTCD AND B.APP=1 AND NVL(C.PONO,0)=0
                AND C.ITST=DECODE(C.STYP,0,11,14)
                GROUP BY NVL(A.STYP,0),A.DAT,C.BATNO,C.ITST,B.DEMNO,B.ITEM,D.ITEMNAME,A.CSNO,PARTY,P.DAT,DEPT.SEC_NAME,P.TRNO,C.EBY, C.SYSIP, C.TDAT,
                CSRAT,A.PDAYS,C.CSTERM,B.GST,E.MASTDS,D.UOM ORDER BY A.CSNO,D.ITEMNAME
ORDER BY "DAT" DESC
which i can not generate by using the Entity objects, Basically I am transforming an oracle form base ERP into Oracle ADF application, so I have available all the quries , Please let me know if i can have any alternative solution ?

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com.ContractualSalaryByYearlyView xml
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*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
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*     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)*
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*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)*
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*     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)*
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*     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)*
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*     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)*
*     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)*
*     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)*
*     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)*
*     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)*
*     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)*
*     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)*
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*     at com.sun.el.ValueExpressionImpl.isReadOnly(Unknown Source)*
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*     at oracle.adfinternal.view.faces.renderkit.rich.EditableValueRenderer.cacheReadOnly(EditableValueRenderer.java:406)*
*     at oracle.adfinternal.view.faces.renderkit.rich.LabeledInputRenderer.beforeEncode(LabeledInputRenderer.java:128)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:510)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChildInContext(RichRenderer.java:3118)*
*     at oracle.adfinternal.view.faces.renderkit.rich.table.BaseColumnRenderer.renderDataCell(BaseColumnRenderer.java:1468)*
*     at oracle.adfinternal.view.faces.renderkit.rich.table.BaseColumnRenderer.encodeAll(BaseColumnRenderer.java:166)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.renderDataBlockRows(TableRenderer.java:2803)*
*     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.encodeAll(TableRenderer.java:685)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at org.apache.myfaces.trinidad.component.UIXCollection.encodeEnd(UIXCollection.java:617)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:641)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3062)*
*     at oracle.adfinternal.view.faces.renderkit.rich.FormRenderer.encodeAll(FormRenderer.java:274)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:641)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3062)*
*     at oracle.adfinternal.view.faces.renderkit.rich.DocumentRenderer.encodeAll(DocumentRenderer.java:1275)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)*
*     at oracle.adfinternal.view.faces.component.AdfViewRoot.encodeAll(AdfViewRoot.java:91)*
*     at com.sun.faces.application.view.JspViewHandlingStrategy.doRenderView(JspViewHandlingStrategy.java:431)*
*     at com.sun.faces.application.view.JspViewHandlingStrategy.renderView(JspViewHandlingStrategy.java:233)*
*     at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:350)*
*     at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)*
*     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)*
*     at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:165)*
*     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:1032)*
*     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:339)*
*     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:237)*
*     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:509)*
*     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)*
*     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)*
*     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)*
*     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:125)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)*
*     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)*
*     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)*
*     at java.security.AccessController.doPrivileged(Native Method)*
*     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)*
*     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)*
*     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)*
*     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)*
*     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)*
*     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)*
*     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)*
*     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)*
*     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)*
*     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)*
*     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)*
*     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)*
*     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)*
*<2012-10-24 10:16:59 CEST> <Error> <HTTP> <BEA-101020> <[ServletContext@16325184[app:test66 module:test66-ViewController-context-root path:/test66-ViewController-context-root spec-version:2.5]] Servlet failed with Exception*
javax.el.PropertyNotFoundException: Target Unreachable, 'bindings' returned null
*     at com.sun.el.parser.AstValue.getTarget(Unknown Source)*
*     at com.sun.el.parser.AstValue.isReadOnly(Unknown Source)*
*     at com.sun.el.ValueExpressionImpl.isReadOnly(Unknown Source)*
*     at oracle.adfinternal.view.faces.renderkit.rich.EditableValueRenderer._getUncachedReadOnly(EditableValueRenderer.java:476)*
*     at oracle.adfinternal.view.faces.renderkit.rich.EditableValueRenderer.cacheReadOnly(EditableValueRenderer.java:406)*
*     Truncated. see log file for complete stacktrace*
*>*
*<2012-10-24 10:16:59 CEST> <Notice> <Diagnostics> <BEA-320068> <Watch 'UncheckedException' with severity 'Notice' on server 'DefaultServer' has triggered at 2012-10-24 10:16:59 CEST. Notification details:*
WatchRuleType: Log
WatchRule: (SEVERITY = 'Error') AND ((MSGID = 'WL-101020') OR (MSGID = 'WL-101017') OR (MSGID = 'WL-000802') OR (MSGID = 'BEA-101020') OR (MSGID = 'BEA-101017') OR (MSGID = 'BEA-000802'))
*WatchData: DATE = 2012-10-24 10:16:59 CEST SERVER = DefaultServer MESSAGE = [ServletContext@16325184[app:test66 module:test66-ViewController-context-root path:/test66-ViewController-context-root spec-version:2.5]] Servlet failed with Exception*
javax.el.PropertyNotFoundException: Target Unreachable, 'bindings' returned null
*     at com.sun.el.parser.AstValue.getTarget(Unknown Source)*
*     at com.sun.el.parser.AstValue.isReadOnly(Unknown Source)*
*     at com.sun.el.ValueExpressionImpl.isReadOnly(Unknown Source)*
*     at oracle.adfinternal.view.faces.renderkit.rich.EditableValueRenderer._getUncachedReadOnly(EditableValueRenderer.java:476)*
*     at oracle.adfinternal.view.faces.renderkit.rich.EditableValueRenderer.cacheReadOnly(EditableValueRenderer.java:406)*
*     at oracle.adfinternal.view.faces.renderkit.rich.LabeledInputRenderer.beforeEncode(LabeledInputRenderer.java:128)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:510)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChildInContext(RichRenderer.java:3118)*
*     at oracle.adfinternal.view.faces.renderkit.rich.table.BaseColumnRenderer.renderDataCell(BaseColumnRenderer.java:1468)*
*     at oracle.adfinternal.view.faces.renderkit.rich.table.BaseColumnRenderer.encodeAll(BaseColumnRenderer.java:166)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.renderDataBlockRows(TableRenderer.java:2803)*
*     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.encodeAll(TableRenderer.java:685)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at org.apache.myfaces.trinidad.component.UIXCollection.encodeEnd(UIXCollection.java:617)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:641)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3062)*
*     at oracle.adfinternal.view.faces.renderkit.rich.FormRenderer.encodeAll(FormRenderer.java:274)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:641)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3062)*
*     at oracle.adfinternal.view.faces.renderkit.rich.DocumentRenderer.encodeAll(DocumentRenderer.java:1275)*
*     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)*
*     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1681)*
*     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1677)*
*     at oracle.adfinternal.view.faces.component.AdfViewRoot.encodeAll(AdfViewRoot.java:91)*
*     at com.sun.faces.application.view.JspViewHandlingStrategy.doRenderView(JspViewHandlingStrategy.java:431)*
*     at com.sun.faces.application.view.JspViewHandlingStrategy.renderView(JspViewHandlingStrategy.java:233)*
*     at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:350)*
*     at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)*
*     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)*
*     at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:165)*
*     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:1032)*
*     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:339)*
*     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:237)*
*     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:509)*
*     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)*
*     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)*
*     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)*
*     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:125)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)*
*     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)*
*     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)*
*     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)*
*     at java.security.AccessController.doPrivileged(Native Method)*
*     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)*
*     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)*
*     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)*
*     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)*
*     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)*
*     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)*
*     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)*
*     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)*
*     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)*
*     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)*
*     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)*
*     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)*
*     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)*
*     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)*
*     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)*
*SUBSYSTEM = HTTP USERID = <WLS Kernel> SEVERITY = Error THREAD = [ACTIVE] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)' MSGID = BEA-101020 MACHINE = JR TXID = CONTEXTID = 1a4c398e070e58ea:-4d4bf6f8:13a91b10737:-8000-000000000000021e TIMESTAMP = 1351066619887*
WatchAlarmType: AutomaticReset
WatchAlarmResetPeriod: 30000
and my function which creates view object is:
ViewObject vo = this.findViewObject("v1");
vo.remove();
vo = this.createViewObjectFromQueryStmt("v1", st);
vo.executeQuery();
Edited by: 965647 on 2012-10-24 01:18
Edited by: 965647 on 2012-10-24 03:02

Entity Based View Object ROWID

Hi,
This might be a little hard to explain, but I have an entity object, and a view object that is based off of that EO. The EO is using a ROWID for its primary key. Now, the view object I have is querying a view in the database, but when I do not include the ROWID attribute in my view object, the LOV using the view object works.
However sometimes I get this error:
"oracle.jbo.PersistenceException, msg=JBO-26028: View object SponsorVwView does not include a primary key attribute RowId of entity base SponsorVw."
And in the view object I get:
"The attributes that represent the primary key of SponsorVw are missing from your query"
So when I add the ROWID which is the primary key the LOV does not work.
Does anyone have any ideas?

Tullio:
Sorry but I don't understand the workaround : if I
insert my row in both VO I'll find it 2 times when I
commit.You won't. The view row from the second VO will point to the same entity row as the row from the first VO. When you commit, we will only insert one database row.
Thanks.
Sung

Querying a View Object after a Row has been inserted

Hi All,
I have a query as to whether something can be done or if I should be approaching my problem in a slightly different way.
First an explanation of what I am trying to achieve:
I have a header record that deals with a new user request. From one of the pages within the train one or more of several different ‘applications’ can be selected. When an ‘application’ is selected I am navigating to a new page, it queries the linesVO to see if any lines exist for that ‘application’, where they don’t it adds lines to the VO each representing ‘questions’ specific to that ‘application’. This works fine, however if I then come out of that page back into the train and then back into the same page specific for the same ‘application’ the initQuery is run and the lines I have just created are not found, it then tries to reinsert the question lines but will error as primary key validation fails. I do not want to commit after coming back from the lines page as the user has not specified a save, adding a save to the lines page would also cause the header to commit.
Now the Question:
Is there a way of ensuring that I can run my created method ‘initQuery’ which sets a where clause and calls ‘executeQuery’ will bring back lines that I have created in the VO and are held in cache? They must be held in cache else I would not be getting the error ‘Too many objects match the primary key’
Any guidance on this matter would be most appreciated,
Thanks
Mike

Unfortunately I do need to query the view again, each time the user clicks on a different ‘application’ in the train it will need to show only the lines in the view relating to that application. It is a bit like a master-detail except I want to show the detail lines on a separate page.
I could have made each page separately but I am trying to make it dynamic so if a new application is added in the future I only have to add the details to the database tables.
Thanks, Mike

How to get the Actual Query of View Object

Hi all,
I have a standard. I need to modify the query of the VO attached to a picklist based on responsibility. I am able to achieve my requirement but it is getting reflected for all the responsibilities even though i extended the controller for a particular responsibility. I used setQuery() to change the query of my VO. When checking "About this page". The code i added also shown in the page. Now i want to get the actual query to the VO before the controller is extended so that i can set the modified query or actual query based on my responsibility. Kindly share your knowledge.
Regards,
Pradeep

Hi,
I guess following query will not work ,Why use 2 where clauses.
SELECT * FROM (select NVL(VENUE_NAME,' ') "Venue",
NVL(VENUE_CITY,' ') "City",
NVL(COUNTRY_DESC,' ') "Country",
EVENT_NUMBER
From NS_EVENT_VENUE_DETAILS,NS_COUNTRY_MASTER WHERE COUNTRY_CODE = VENUE_COUNTRY) QRSLT WHERE (QRSLT.EVENT_NUMBER = 1539
you can as following using bind variable.
http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/bcquerying.htm#CEGDGIJH

Use of Bind Variable in the Query of view object giving null pointer excep

I am using this code in the backing bean of my page to set the value of the bind variable 'cmdID' in the view object.
String AM = "model.UnixCommandsAppMod";
String CF = "UnixCommandsAppModLocal";
ApplicationModule am = Configuration.createRootApplicationModule(AM, CF);
ViewObject vo = am.findViewObject("Command_options_view");
vo.setNamedWhereClauseParam("cmdID", 1);
vo.executeQuery();
On the fifth line it is giving NullPointer exception.
I am not being able to figure out the reason.

User,
a). Don't keep posting new questions in the same thread. It really does decrease the usability of the forum. Now, if someone searches for "INFO: ADF Faces is running with time-stamp checking enabled," they will find a post about null pointer exception in a bind variable and think, "oh, that doesn't apply to me." If your question is answered, mark the answer as correct. New questions go into a new thread. Kind of funny that the thread I pointed you to with the answer to your question also has this same admonishment.. ;)
b). I'll relent and answer your new question. Ignore that INFO message. It is not an error. It will ALWAYS ALWAYS appear when you run your application in the embedded OC4J with JDeveloper. Had you searched the forum for "INFO: ADF Faces is running with time-stamp checking enabled" you would find that the first hit (among some others) has this same answer
John

Changing the Updatable property of a View Object Attribute through code

Hi,
Is there a way to set the "Updatable" property of an attribute in a view object through code ?
I checked the API docs for the AttributeDef class but there is no method to set this. there is a constant (UPDATEABLE_WHILE_NEW) which gives the current value.
My requirements in short - I have a ADF editable Table. Based on a flag whether it is SET or NOT, i need to make a particular column such that the inputTextBox on this column must appear for only the new rows inserted into the table. For all the existing rows users should not be allowed to edit values on this column.
I know this can be controlled with the UPDATABLE property on the attribute in the view object by setting the value as "WHILE NEW".
Now i need to control this through code at runtime.
Please let me know on ow to do this.
JDev version: 11.1.2.3
Thanks.

the method you are looking for is available in the AttributeDefImpl class which you can get from the EntityImpl like
this.mDefinitionObject.getAttributeDefImpl("YOUR_ATTRIBUTE_NAME").setUpdateableFlag(AttributeDef.UPDATEABLE_WHILE_NEW);
Timo

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