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https://issues.apache.org/jira/browse/MYFACES-141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12483177
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Mike Kienenberger commented on MYFACES-141:
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You are better off discussing this on the mailing list rather than a closed
jira issue.
The issues with "MyList" can and probably should be solved using BeanInfo to
correctly configure your bean accessors. This might also be true for size.
If you're using facelets (or unified EL), you can define a size function or use
the jstl:length() function.
> 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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