Changing SQL Query in View Object during runtime

Hello everyone,
I've got some problems with view objects which I dropped on my JSP page.
1.)
What I want to do is changing SQL query during running my application. I have view object based on select query: "SELECT * FROM DEPARTMENTS". And after clicking button (or something else) I want to change the query: "SELECT * FROM EMPLOYEES" and I want to see this changes in my JSP page. Setting the query and executing it doesn't work. How can i do it?
2.)
I want to create view object programmatically, but I don't know exactly how many columns / attributes it will have. If I know the names of the attributes it's ok, but i don't know it... So I've got function, its body is:
Row rowForInsert = this.createRow();
this.addDynamicAttribute("ParamName");
rowForInsert.setAttribute("ParamName", "asda");
this.insertRow(rowForInsert);
but this code doesn't work (I can't see any changes on my JSP Page).

Thank's a lot!
But there's another thing to do which I can't deal with.
I want to create view object in one jspx page, a I don't want to move to another.
And this method doesn't work.
What can I do?
I've got following error (I'm using dynamic table, when I create view object first time it's ok, but when i want to create another, there's execption):
java.util.NoSuchElementException
*     at java.util.ArrayDeque.removeFirst(ArrayDeque.java:251)*
*     at java.util.ArrayDeque.pop(ArrayDeque.java:480)*
*     at oracle.adfinternal.view.faces.renderkit.rich.EditableValueRenderer.removeCachedReadOnly(EditableValueRenderer.java:414)*
*     at oracle.adfinternal.view.faces.renderkit.rich.LabeledInputRenderer.afterEncode(LabeledInputRenderer.java:139)*
*     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:526)*
*     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)*
*<LifecycleImpl> <_handleException> ADF_FACES-60098:Faces - cykl życia otrzymuje nieobsługiwane wyjątki w fazie RENDER_RESPONSE 6*
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)*
*<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

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How to build sql query for view object at run time

Hi,
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As I understand you want to change the query at run time.
If this is what you want, you can use setQuery Method then use executeQuery.
http://download.oracle.com/docs/cd/B14099_19/web.1012/b14022/oracle/jbo/server/ViewObjectImpl.html#setQuery_java_lang_String_

Expert mode query in View objects and appended where clause

My company is Oracle Member Partner and we are developing enterprise web applications using Oracle database and BC4J.
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I tried creating an expert mode SQL query:
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Is it possible the query in view object is dynamic?

Is it possible the query in view object is dynamic?
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Hi Shay,
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How do I create multiple objects during runtime?

I don't know how to create multiple objects during runtime, here's my problem:
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public Hashtable ht = new Hashtable();
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I think i can see the problem that you are having. You have, in effect, duplicate keys in your hashtable - ie, two strings used as keys with the same name.
The way that a hashtable works is as follows...
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Greg:
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Implementing History types on query based view object attributes

Hi All,
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Change values in File physical schema during runtime?

Is there any way to change the Directory in physical schema
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Hi,
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Creating View Objects at Runtime for Validation

In Oracle® Application Development Framework
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Is there any sample code available for this topic?
Please help
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I have created a helper method . The code is given below
protected ViewObject getValidationVO(String viewObjectDefName) {
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// Validation_bc4j_project of type ApplicationModule not found
and created a validation method.
The code inside validation method is given below.
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I have checked several times but can't find the fault in the code.
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How to access query based view object in backing bean

Hi
I am using JDev11.1.2.1.0
I want to use the query result of query based view object in backing bean.
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Please Solve this
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Hi,
Assuming ADF is in the picture
1. Create a PageDef file for the page (right mouse click "Go to Page Definition")
2. In the Executable section, create an iterator for the View Object
3. In the managed bean:
BindingContext bctx = BindingContext.getCurrent();
BindingContainer bindings = bctx.getCurrentBindingsEntry();
DCIteratorBinding iter = (DCIteratorBinding ) bindings.get("name of Iterator");
iter.execute();
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Change JDBC select SQL query's where clause at runtime

Hi,
I have one JDBC sender channel with Select SQL Query which helps in fetching data from JDE table. We have defined where clause to fetch some particular records i.e. if ABC = NULL then fetch the record.. and then update query is used to turn that flag to "Y" i.e. ABC ="Y" so that next time the channel don't pick the same records again.
Now the problem is that if we want to fetch some records again whose flag has been set to "Y" we cannot change the select query again and again in the production environment.
Is there any way to change the select query of the JDBC channel at runtime e.g. Picking up some flat file where the conditions for the particular records to be picked are defined (ID=123) and changing the WHERE clause of select query in the JDBC channel for those records to be picked without using BPM.
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Hi Simran,
Yes, it is possible with the help of store procedure. In SQL Server there is a IF-Else Conditional block, which you can use inside store procedure. Create a SP with 2 additional parameter something like FlagReadAgain and KeyField. Pass the flag always as True or False. For the Key field pass the record key which you want to read again if you are passing the Flag as True else pass it as 0 or whatever.
In the procedure check if the value of flag is True -> If yes, Read the entry with key name specified in where part.
In the else part put the query which you are using for the normal flow.
IF (FlagReadAgain) = TRUE
BEGIN
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END
ELSE
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You may also use the approach which Srini mentioned. Create an application to restore any value to intial stage so that it can be picked up by XI when it poll again.
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To change view property during runtime

Hi,
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We are unabelt o achieve this thruogh plugs are first view is in another DC and second view is in other DC.
Is there any other way to through which we can achieve this?
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Regards,
Richa Sinha

Hi,
I got your requirement,
Yes if you want navigate back to source view, the problem is you cannot add the the Comp2 again in Comp1 as used comp. This will give cyclic dependancy error.
Try like this.
In Comp2, create an additional view like NavigationView (for example).
In NavigationView create two ViewContainerUIElements (ViewContainerUIElement1 & ViewContainerUIElement2).
Embed this NavigationView into Comp2Window and remove View1's Inteface view & View2 from this window. Change the NavigationView property to true.
And go the Comp2Window Navigation Modeler, embed View1's Inteface view in ViewContainerUIElement1 & View2 in ViewContainerUIElement2.
Now create two context attributes View1Visibility & View2Visibilty in NavigationView and modify the type property to WDVisibility.
Bind these two attributes to corresponding ViewContainerUI elements.
Now in Navigation view, You can create one button and in that button action you can control the visibility of these views.
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A dynamic View object at runtime

Say there is an inputtext component and one LOV. User will enter a number, say 7, and then press a Submit button. And then in the LOV, user will be able to see the numbers from 1 to 7.
Is it possible to achieve the same?

Hi,
am not sure what exactly you are trying to achieve here,
but from your description, it looks like a query dependency to me..
So in your VO that will be used as the List of Values for the attribute you want, create a View Criteria that meets the requirement you want (seems like 'Less than or Equal To' is what you need).
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Since you havent described your BC model, I can only assume that you have one main VO and both UI component are binded to attributes of that VO.
Now go back to your main VO and update the LOV View AcCessor to use the ViewCriteria specifying the proper value on the Bind Variable.
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Regards,
Dimitrios.

A question about how to change a button in a JPanel during runtime

I am a beginner of GUI. Now I am trying to change a specific component, a button, when the application is running. For example, I have 3 buttons in a JPanel. Each button has its onw icon. If I click one of them, it will change its icon, but the other two don't change. I don't know if there is any method for changing a specific component during runtime. If any one knows please let me know, I will appreciate that very much!!!

What you're going to have to do is loop inside the actionlistener but still have accessability to click while its looping. I don't know much about it, but I think you're going to need a thread. Try something like this... (it doesn't work yet, but I have to take off)
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class buttonxdemo extends JFrame implements ActionListener{
Buttonx mybutton;
//set it all up, make it look pretty =]
public buttonxdemo()
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     this.setDefaultCloseOperation(3);
     this.setSize(200,200);
public void actionPerformed(ActionEvent ae){
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               mybutton.keepGoing = true;
      mybutton = new Buttonx(/*Icon,*/"My Button");
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      //getContentPane().add(mybutton.thebutton);
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}//actionperformed
static void main(String args[])
     new buttonxdemo().show();
} //movingicondemo
class Buttonx extends Thread{
public boolean keepGoing;
//public Icon ICx;            //perhaps an array, so you can loop through?
public String strbuttonx;
public JButton thebutton;     //may have to extend JFrame?
public Buttonx(/*Icon IC,*/ String strbutton){
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    strbuttonx = strbutton;
    thebutton = new JButton(strbuttonx);
public void startstop()
    int i = 0;
    while (keepGoing)
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      //thebutton.setIcon(ICx);
i++;
if (i > strbuttonx.length() - 1)
i = 0;
try
     Thread.sleep(1000);
catch (InterruptedException ie)
     System.out.println("sleep caught: " + ie);
}//startstop()
}//buttonx
kev

SQL query or view used internally by Discoverer Open Workbook from Database

Hi Experts,
I am involved in developing a web application wherein I have to display the 'All Workbooks' similiar functionality in the 'Open Workbook from Database' dialog box of Discoverer. Can anybody provide me with the background query or view that Discoverer uses to retrieve this data for workbook listing? Please let me know if my question is confusing and requires more details.
Thanks
Thomas

Hi,
If you just need the list of workbooks then you need to use the EUL_DOCUMENT table:
SELECT u.User_Name Owner_Name
*,Doc.Doc_Name Workbook_Name*
*,Doc.Doc_Updated_Date Last_Update_Date*
FROM Eul_Us.Eul5_Documents Doc
*,Eul_Us.Eul5_Eul_Users Own_Usr*
*,Fnd_User u*
WHERE Own_Usr.Eu_Id = Doc.Doc_Eu_Id AND
To_Char(u.User_Id(+)) = Substr(Own_Usr.Eu_Username
*,2*
*,10);*
If you want the exact same list then you need to do the above along with the sharing :
SELECT DISTINCT
case when instr(disco_docs.doc_created_by,'#')=0 then disco_docs.doc_created_by
when instr(disco_docs.doc_created_by,'#')>0 and instr(disco_docs.doc_created_by,'#',2)=0 then (select fu.user_name from fnd_user fu where fu.user_id=substr(disco_docs.doc_created_by,2,5))
else NULL
end "Workbook Owner/Creator",
disco_docs.doc_name "Workbook Name",
disco_docs.Doc_Updated_Date "Last Update Date",
case when instr(disco_users.eu_username,'#')=0 then disco_users.eu_username
when instr(disco_users.eu_username,'#')>0 and instr(disco_users.eu_username,'#',2)=0 then (select fu.user_name from fnd_user fu where fu.user_id=substr(disco_users.eu_username,2,5))
else (select resp.responsibility_name from fnd_responsibility_tl resp where resp.responsibility_id=substr(disco_users.eu_username,2,5))
end as "Shared Name / Responsibility"
FROM
eul_us.eul5_documents disco_docs,
eul_us.eul5_access_privs disco_shares,
eul_us.eul5_eul_users disco_users
WHERE
disco_docs.doc_id = disco_shares.gd_doc_id (+)
and disco_users.eu_username(+) NOT IN ('EUL5', 'PUBLIC')
AND disco_users.eu_id(+) = disco_shares.ap_eu_id;
* Change the EUL_US to your discoverer schema...
Then you will need to compare the current user with the sharing list or creator
Good luck
Tamir

Changing SQL Query in View Object during runtime

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