Re: Map Backed Form

[Jason Lea]

I read this somewhere (perhaps Struts in Action) and I use map-backed 
properties... the methods should have String keys, but Object values eg

public Object getElementMap ( String key ) {
public void setElementMap ( String key, Object value )
Ray Madigan wrote:

I am having some difficulty with my Map Backed Form implementation.

I have in my Form:

private Properties elementMap = null;

public String getElementMap ( String key ) {
    return ( String ) elementMap.getProperty ( key );
}
public void setElementMap ( String key, String value ) {
    elementMap.put ( key, value );
}
public void reset ( ActionMapping mapping, HttpServletRequest request ) {
    ...
    elementMap = new Properties ( );
}
I have in my JSP:

<html-el:text property='elementMap(${element.element})'
value='${element.value}'/>
If I enumerate the request parameters in the reset method of the form
the paramaters and values look like:
name->elementMap(PerPage)
value->4
I get the exception
java.lang.IllegalAccessError: try to access class
org.apache.commons.beanutils.MappedPropertyDescriptor$1 from class
org.apache.commons.beanutils.MappedPropertyDescriptor
From past experience I get this exception when struts is looking for a
setter
in my form and can't find it.  I think that struts is looking for a method
'setElementMap(perPage)' and has not figured out it is a mapped property
for some reason.  And I can't write a method with name.
Any help would be appreciated.

Thanks

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Jason Lea
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