OK, this isn't real easy to explain, but it's got me stumped at the moment.
I am working on an application that will display hundreds of different
beans. To cut down on there being hundreds of value beans, I have created a
generic value bean that uses getters and setters like so:
public String getDisplayValue(String propertyName) ...
public void setDisplayValue(String propertyName, String value) ...
no problem so far, my JSPs use <nest:write
property="displayValue(optionId)"/>. It works just fine.
Now I have can have child objects that occur more 0 to many times. (and
there can be multiples of these, so I need to retrieve the list by type) So,
I have implemented a getter to return an ArrayList like so...
public ArrayList getChildList(String childType) ...
so in my JSP, I have
<nest:root name="optionSet"> <!-- refers to the top level bean -->
<nest:write property="displayValue(optionId)"/> <!-- this works fine -->
<!-- now to iterate over the ArrayList for "childTypeB" -->
<nest:iterate property="childList(childTypeB)">
<nest:write property="displayValue(propA)"/>
<!-- this returns [ServletException in:/WEB-INF/OptionInclude.jsp] No
getter method for property childList(childType)[0].displayValue(propA) of
bean optionSet' -->
</nest:iterate>
</nest:root>
I can get it to work if I add a <nest:root tag under the iterate.....
<nest:root name="optionSet">
<nest:write property="displayValue(optionId)"/>
<!-- now to iterate over the ArrayList for "childTypeB" -->
<nest:iterate property="childList(childTypeB)" id="child">
<nest:root name="child">
<nest:write property="displayValue(propA)"/> <!-- this works -->
</nest:root>
</nest:iterate>
</nest:root>
Since the work-around works, it looks a bit like there is a bug using nested
iterate this way.
Also, the work-around fails when I need to use a form and get my results
back...
<nest:root name="optionSet">
<nest:write property="displayValue(optionId)"/>
<!-- now to iterate over the ArrayList for "childTypeB" -->
<nest:iterate property="childList(childTypeB)" id="child">
<nest:root name="child">
<nest:text property="displayValue(propA)"/>
</nest:root>
</nest:iterate>
</nest:root>
since the html generates...
<input type="text" name="displayValue(propA)" value="some text">
since the <nest:root> tag loses track of the parent.
without the <nest:root> I should get
<input type="text" name="childList(childTypeB)[0].displayValue(propA)"
value="some text">
so that the value will be assigned properly in the actionForm upon return
I'm now suspecting the trouble is with parsing the xxx(childType)[] part of
the expression childList(childType)[0].displayValue(propA) (in particular
the (), and [] together), just a thought.
OK, anyone know what I need to do to get this to work?
