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https://issues.apache.org/jira/browse/MYFACES-141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12483510
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matthias egger commented on MYFACES-141:
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yep, sorry for posting on the wrong place (i felt motivated by "...Please add
your detailed comments...");
to close this topic here:
there is indeed another better solution:
simply wrap your destined List returned by your bean in a
javax.faces.model.DataModel:
public DataModel getMyData() {
DataModel listData = new ListDataModel(); // or ArrayDataModel()
listData.setWrappedData(some array);
return listData;
}
accessing on the jsf page, e.g:
<t:outputText value="#{sampleBean.myData.rowCount}" />
...
but anyway thanks for your prompt reply.
> accessing properties of an extended "List"
> ------------------------------------------
>
> Key: MYFACES-141
> URL: https://issues.apache.org/jira/browse/MYFACES-141
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 1.0.9m9
> Environment: JBoss 4.0.1sp1, my-faces-1.0.9
> Reporter: Joerg Flammiger
>
> If a class "MyList" extends the class "ArrayList" and the class "MyList" has
> various getter and setter methods, then it is not possible to access such
> properties in the jsp/jsf page. an example expression is:
> #{sampleBean.testList.testValue} . the expression resolver think "testValue"
> is an index; therefore, it tries to convert "testValue" to an integer, which
> will fail. In my opinion, "testValue" should refer to the implemented methods
> "getTestValue" and "setTestValue".
> You will get the following exception:
> 2005-03-21 15:58:12,312 ERROR [org.apache.myfaces.el.ValueBindingImpl] Cannot
> get value for expression '#{sampleBean.testList.testValue}'
> javax.faces.el.ReferenceSyntaxException: Cannot convert index to int for base
> mypackage.MyList and index maxItems
> at
> org.apache.myfaces.el.ELParserHelper.coerceToIntegerWrapper(ELParserHelper.java:418)
> at org.apache.myfaces.el.ELParserHelper.toIndex(ELParserHelper.java:440)
> at
> org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:541)
> at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
> at
> org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:441)
> at javax.faces.component.UIOutput.getValue(UIOutput.java:75)
> at
> org.apache.myfaces.renderkit.RendererUtils.getStringValue(RendererUtils.java:293)
> at
> org.apache.myfaces.renderkit.html.HtmlTextRendererBase.renderInput(HtmlTextRendererBase.java:159)
> at
> org.apache.myfaces.renderkit.html.HtmlTextRendererBase.encodeEnd(HtmlTextRendererBase.java:77)
> at
> javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:332)
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