JSF Adding parameters to request

[arti.pande]

Hello,

 

I need to add parameters to request object.

 

MyFaces includes a non-modifiable (immutable) RequestParameterMap class to wrap parameter map from ServletRequest.

Hence it is not possible to add parameters using 

        facesContext.getExternalContext().getRequestParameterMap()

 

there is another way to do this

        HttpServletRequest request = (HttpServletRequest) facesContext.getExternalContext().getRequest();

        request.getParameterMap().put("objectID" "value1");

 

But this causes the type of "objectID" parameter and its value to be native string "[Ljava.langString" instead of "java.lang.String" 

 

So the parameter can NOT be retrieved by its name (specified as String literal)  i.e. '#{param.objectID}'

Caused by: javax.faces.el.EvaluationException: Cannot get value for _expression_ '#{param.objectID}'
 at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:397)
 at org.apache.myfaces.config.impl.digester.elements.ManagedProperty.getRuntimeValue(ManagedProperty.java:122)
 at org.apache.myfaces.config.ManagedBeanBuilder.initializeProperties(ManagedBeanBuilder.java:157)
 at org.apache.myfaces.config.ManagedBeanBuilder.buildManagedBean(ManagedBeanBuilder.java:55)
 at org.apache.myfaces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:311)
 at org.apache.myfaces.el.ValueBindingImpl$ELVariableResolver.resolveVariable(ValueBindingImpl.java:569)
 at org.apache.commons.el.NamedValue.evaluate(NamedValue.java(Compiled Code))
 at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java(Compiled Code))
 at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:378)
 ... 88 more
Caused by: javax.faces.el.EvaluationException: org.apache.myfaces.context.servlet.RequestParameterMap
 at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:78)
 at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:532)
 at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java(Compiled Code))
 at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:378)
 ... 96 more
Caused by: java.lang.ClassCastException: java.lang.String
 at com.ibm.ws.webcontainer.srt.SRTServletRequest.getParameter(SRTServletRequest.java:715)
  at org.apache.myfaces.context.servlet.RequestParameterMap.getAttribute(RequestParameterMap.java:39)
  at org.apache.myfaces.context.servlet.AbstractAttributeMap.get(AbstractAttributeMap.java:87)
  at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:67)
 ... 99 more

Thanks

 

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