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Posted to dev@myfaces.apache.org by "Martin Marinschek (JIRA)" <de...@myfaces.apache.org> on 2006/09/22 16:58:22 UTC
[jira] Updated: (MYFACES-990) Unhelpful stack trace when tag value
binding returns wrong type.
[ http://issues.apache.org/jira/browse/MYFACES-990?page=all ]
Martin Marinschek updated MYFACES-990:
--------------------------------------
Status: Patch Available (was: Open)
> Unhelpful stack trace when tag value binding returns wrong type.
> ----------------------------------------------------------------
>
> Key: MYFACES-990
> URL: http://issues.apache.org/jira/browse/MYFACES-990
> Project: MyFaces Core
> Issue Type: Improvement
> Components: General
> Affects Versions: 1.1.1
> Reporter: Steve Peterson
> Priority: Minor
> Attachments: typed-value-binding.patch
>
>
> In the implementation of each UIComponent, the canonical logic for retrieving a non-String property is to cast the result
> of the valueBinding.getValue() method to the expected type.
> public boolean isItemDisabled()
> {
> if (_itemDisabled != null) return _itemDisabled.booleanValue();
> ValueBinding vb = getValueBinding("itemDisabled");
> Boolean v = vb != null ? (Boolean)vb.getValue(getFacesContext()) : null;
> return v != null ? v.booleanValue() : DEFAULT_ITEMDISABLED;
> }
> Yields an obscure stack trace that doesn't yield the ID of the component or the property that is being referenced:
> ERROR 14:45:28 [[jsp]] Servlet.service() for servlet jsp threw exception
> java.lang.ClassCastException: java.lang.String
> at javax.faces.component.html.HtmlInputText.isDisabled(HtmlInputText.java:117)
> at org.apache.myfaces.renderkit.html.HtmlTextRendererBase.isDisabled(HtmlTextRendererBase.java:157)
> at org.apache.myfaces.renderkit.html.ext.HtmlTextRenderer.isDisabled(HtmlTextRenderer.java:45)
> at org.apache.myfaces.renderkit.html.HtmlTextRendererBase.renderInput(HtmlTextRendererBase.java:144)
> at org.apache.myfaces.renderkit.html.HtmlTextRendererBase.encodeEnd(HtmlTextRendererBase.java:50)
> at org.apache.myfaces.renderkit.html.ext.HtmlTextRenderer.renderNormal(HtmlTextRenderer.java:72)
> at org.apache.myfaces.renderkit.html.ext.HtmlTextRenderer.encodeEnd(HtmlTextRenderer.java:58)
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