[TOMAHAWK-377] aliasBean saves its children when parent has rendered="false"

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.0.9m9
• Component/s: Alias Bean
• Assignee: Unassigned
• Reporter: Martin Zdila
• Created: 26/May/05 17:54
• Updated: 19/Sep/06 20:36

Description

Hello

<h:panelGroup rendered="#

{tableColumnForm.inputTypeName == 'label'}">
<x:aliasBean alias="#{holder}" value="#{tableColumnForm.inputType.visualDefinition}">
<f:subview id="inputTypeLabelVisualDefinition">
<jsp:include page="/inc/fontPicker.jsp" />
</f:subview>
</x:aliasBean>
</h:panelGroup>

This JSF code causes exception although #{tableColumnForm.inputTypeName == 'label'}

(rendered) is false:

javax.faces.el.PropertyNotFoundException: Bean: com.kovine.kfe.dao.InputTypeCheckbox, property: visualDefinition
at org.apache.myfaces.el.PropertyResolverImpl.getPropertyDescriptor(PropertyResolverImpl.java:464)
at org.apache.myfaces.el.PropertyResolverImpl.getPropertyDescriptor(PropertyResolverImpl.java:435)
at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:398)
at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:104)
at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:555)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:441)
at org.apache.myfaces.custom.aliasbean.AliasBean.makeAlias(AliasBean.java:270)
at org.apache.myfaces.custom.aliasbean.AliasBean.makeAlias(AliasBean.java:249)
at org.apache.myfaces.custom.aliasbean.AliasBean.processSaveState(AliasBean.java:145)
at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:466)
at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:466)
at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:466)
at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:466)
at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:454)
at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:466)
at org.apache.myfaces.application.jsp.JspStateManagerImpl.getComponentStateToSave(JspStateManagerImpl.java:106)
at org.apache.myfaces.application.jsp.JspStateManagerImpl.saveSerializedView(JspStateManagerImpl.java:249)
at org.apache.myfaces.taglib.core.ViewTag.doEndTag(ViewTag.java:141)
at org.apache.jsp.pages.tableColumnForm_jsp._jspx_meth_f_view_0(tableColumnForm_jsp.java:341)
nForm_jsp.java:341)

The expression #

{tableColumnForm.inputType.visualDefinition}

should be evaluated only if inputType is of type "label" (then #

{tableColumnForm.inputTypeName == 'label'}). AliasBean tries to save state of all its children without regard if they are (was) rendered or not. In my case, if #{tableColumnForm.inputTypeName == 'label'}

is false, then #

{tableColumnForm.inputType} doesn't contain "visualDefinition" property (because it contains reference to another object in that moment) and that causes an exception. If I replace x:aliasBean tag to eg. <h:outputText value="#{tableColumnForm.inputType.visualDefinition.fontFace}" /> then it doesn't throw the exception although #{tableColumnForm.inputType}

doesn't contain "visualDefinition" property.

So, in short: aliasBean should not save state of its children when its parent is not rednered (because its children could contain references to for example not existing properties).

I hope my explanation is enough clear. If not, please notify me (in the comment).

Thanks in advance for your effort
Martin