Possible error resolving EL expressions when using Facelets
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Key: TOBAGO-535
URL: https://issues.apache.org/jira/browse/TOBAGO-535
Project: MyFaces Tobago
Issue Type: Bug
Components: Facelets
Affects Versions: 1.0.12
Reporter: Tobias Glensk
I wanted to set the converter to use for a tx:in from a managed bean, because
the concrete converter is only known on runtime. My managed bean returns the Id
for the converter correctly, but I get an error message.
Example Facelet Snippet:
<c:forEach items="${controller.currentBean.properties}" var="item">
<!-- 1) below doesn't work, error message: Cannot convert
de.nordlbit.FDTStringConverter of type class java.lang.String to interface
javax.faces.convert.Converter -->
<tc:in label="${item.name}" value="${item.value}"
converter="${item.converterId}" />
<!-- 2) below doesn't work, error message: Cannot convert
de.nordlbit.FDTStringConverter of type class java.lang.String to interface
javax.faces.convert.Converter -->
<c:set var="converterId" value="${item.converterId}" />
<tc:in label="${item.name}" value="${item.value}" converter="${converterId}"
/>
<!--3) below works, setting String statically -->
<tx:in label="${item.name}" value="${item.value}"
converter="de.nordlbit.FDTStringConverter" />
</c:forEach>
${item.converterId} returns a String with the value
"de.nordlbit.FDTStringConverter ". Using the examples 1 and 2 I get an error
message, setting the same String like in example 3 statically, it works. The
error message / stacktrace returns for the examples 1 and 2:
08.11.2007 10:16:42 com.sun.facelets.FaceletViewHandler handleRenderException
SCHWERWIEGEND: Error Rendering View[/sandbox/wizard.xhtml]
java.lang.IllegalArgumentException: Cannot convert
de.nordlbit.FDTStringConverter of type class java.lang.String to interface
javax.faces.convert.Converter
at com.sun.el.lang.ELSupport.coerceToType(ELSupport.java:329)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:56)
at javax.faces.component.UIOutput.getConverter(UIOutput.java:137)
at
org.apache.myfaces.tobago.renderkit.RenderUtil.getFormattedValue(RenderUtil.java:128)
at
org.apache.myfaces.tobago.renderkit.RendererBase.getCurrentValue(RendererBase.java:96)
...
Example Snippet from the managed bean item class
/**
* @return the converterId
*/
public String getConverterId() {
return this.converterId;
}
I tried to use # instead of $ but the same behaviour can be observed.
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