WebWork 2 : Describing a bean in velocity

This page last changed on Dec 10, 2004 by sutter2k.

The follow snippet might be useful during debugging to list the properties inside an
arbitary bean. Or for handing to a UI developer that use unaware of the getters/setters inside an object.

## prints out the property names for a bean
#macro (describeBean $name) 
#set($bu = $webwork.bean("com.opensymphony.util.BeanUtils"))
	#foreach($propName in $bu.getPropertyNames($name))
		<li>$propName</li>
	#end
#end

i.e. assuming $obj is a PersonObject that has properties(firstName, lastName, and zip).

#describeBean($obj)

would print
<li>firstName</li>
<li>lastName</li>
<li>zip</li>

One might also expand upon this to build a dynamic interface with via reflection. e.g.

$webwork.evalute("$obj.${propName}")

Document generated by Confluence on Dec 14, 2004 16:36