Using the iterator to list results from a hibernate join

[Brian Daddino <br...@opus-ism.com>]

Hi,

I'm new to Struts 2.   I have searched the web but can not find anything
on my issue.

 

Basically I have a many to 1 relationship between 2 objects, Contact and
contactmethod (contact being the 1).  

Contacts objects contain a person's name and contact method is basically
just a name value pair. 

What I would like to display is the name and all contactmethods in 1
list....

Example:

John Smith phone 555-1212

John Smith fax 555-2323 <ma...@something.net> 

 

My hibernate query returns a list.

List l = session.createQuery("FROM Contact c left join
c.contactmethodses").list();

 

It seems that the way the join is handled is to make each list entry
actually be an array of 2 objects (a contact object and a contactMethod
object).  

 

Here is my JSP code...

 

<s:iterator value="contacts"  status="status">

        <tr>

            <td class="nowrap"><s:property /></td>

            <td class="nowrap"><s:property value="<what do I put in
here???"/></td>

        </tr>

 

    </s:iterator>

 

I will get the correct # of lines, however, I can not figure out how to
read the values out of the array in this list item.

Using <s:property /> will get me gui.Contact@1b08cf3 but how do I
actually read properties of that object  or the 2nd object (contact
method)?  

What do I put in the value field of my property tag?

 

Thanks,

Brian

 


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Re: Using the iterator to list results from a hibernate join

[Dave Newton <ne...@yahoo.com>]

--- On Tue, 7/22/08, Brian Daddino <br...@opus-ism.com> wrote:
> I'm new to Struts 2.   I have searched the web but can
> not find anything on my issue.

Did you look at the S2 documentation wiki? It answers these questions.

> What do I put in the value field of my property tag?

Here's some pseudo-code based loosely on your requirements.

<s:property "contact.name"/>
<s:iterator value="contact.contacts">
  <s:property value="email"/>
  <s:property value="phone"/>
</s:iterator>

The contact is exposed by the action.

The <s:property.../> tags call, in this example, getEmail() on each object being iterated over. An alternative way would be:

<s:iterator value="contact.contacts" id="aContact">
  <s:property value="#aContact.email"/>
  <s:property value="#aCotnact.phone"/>
</s:iterator>

I'd recommend looking over some of the basics on the S2 wiki.

Dave


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