Java EE (Java Enterprise Edition) General Discussion

Hi all,

I'm try to explain the scenario of the problem.

I have a jsp that receive in the request (from a spring controller) an object called queryResponse type QueryResponseWrapper that have just one property queryResponse type org.apache.solr.client.solrj.response.QueryResponse with getter and setter method.


On the jsp I have :

<c:forEach items="${queryResponse.results}" var="solrDocument" varStatus="status" >

........

</c:forEach>


"results", the property over i do the iteration, is not actually a property but a method called getResults with no argument that return a collection of object type SolrDocumentWrapper that extend another class SolrDocument.

In the class SolrDocumentWrapper have the method getHighlightingData with no arguments.


The problem is, inside the above for-each,

when I try in jstl to access to property of the object SolrDocument I have the data on the page

${solrDocument.content}

but

not when I try to access to property of the SolrDocumentWrapper class.

${solrDocument.highlightingData}

Seams to be that the object that I'm accessing is up-casted.

After that I found that problem I tried, just for a test, to override in the object SolrDocumentWrapper the toString method

@Override
public String toString(){
return this.highlightingData.toString();
}

a that point if I change my jsp to

<c:forEach items="${queryResponse.results}" var="solrDocument" varStatus="status" >
${solrDocument}
</c:forEach>
and I had the toString of the property highlightingData on the page.

{content=[ BASIC TEXT ]}

I tried to do do my best to explain the problem .....

Can anyone help me to understand why?


Thank you in advance.
Alessandro