[thelist] Java/JSP puzzler revisited (simplified)

[Tom Dell'Aringa]

--- Hassan Schroeder <hassan at webtuitive.com> wrote:
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> this would be a lot easier to test with access to your MenuItemNode
> class and a sample nodesInVerticalOrder :-)
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Yeah, especially since I'm not a java developer! I have no idea where I could even begin to locate
that info. 

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> That said, here's a rough stab at a solution; hopefully it'll at
> least point you in a helpful direction!
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It makes sense, but I get this compilation error:

Error: No entity named "level" was found in this environment. 

javax.servlet.ServletException: Compilation error occured: 
Found 1 errors in JSP file: 
D:\\FoundationServer\\portal\\templates\\template0003\\VSdWdcXRUbfWeVeQZQdUQdUUXTaUYaQc\\vertical_svm_sp3.jsp:194:
Error: No entity named "level" was found in this environment. 
 

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> > <%
> 
> 	/* assuming nodesInVerticalOrder supports it, which seems
>          * reasonable, change this Iterator to a ListIterator()
>          */
>  	ListIterator verticalNodes = nodesInVerticalOrder.listIterator();
> > 	if (!verticalNodes.hasNext()) return;
> > 
> > 	StringBuffer dataCell = new StringBuffer();
> > 	
> > 	// start root UL
> > 	dataCell.append("<ul>");
> > 
> > 	// iterate through each nav item and write it out
> > 	while (verticalNodes.hasNext()) {
> > 
> > 		MenuItemNode node = (MenuItemNode) verticalNodes.next();
> 		
> 		int previousLevel = level;
> > 		int level = node.getLevel();  // # from 1-4 always have access to this for each LI
> 
> 		if ( verticalNodes.hasPrevious() )
> 		{
> 			dataCell.append("</li>");
> 		}
> 		if ( level > previousLevel )
> 		{
> 			dataCell.append("<ul>");
> 		}
> 		if ( level < previousLevel )
> 		{
> 			dataCell.append("</ul>");
> 		}
> > 		// begin new list item, write out LI and anchor
> > 		dataCell.append("<li class=\"" +className+ "\">");
> > 		dataCell.append("<a href=\"" + node.getHref() + "\">" + node.getTitle() + "</a>");
> > 
> 
> > 		//close the LI item
>  		/*  dataCell.append("</li>\n"); */
> > 	}
> > 	// close out the root UL
> 	/* add final LI close here */
> 	dataCell.append("</li></ul>");
> > %>
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I don't understand why level would all of a sudden be an unknown - does the assignment 

int previousLevel = level;

cause some kind of problem with scope or something? Being a JavaScript guy, that seems fine to me,
but I don't know the nuances of Java...

Tom


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