[TAPESTRY-761] Dynamic Proxies break 3.0 component

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 4.0
• Fix Version/s: 4.0
• Component/s: Framework
• Assignee: Howard Lewis Ship
• Reporter: Mike Perham
• Created: 18/Nov/05 02:38
• Updated: 21/Nov/05 00:59
• Resolved: 21/Nov/05 00:59

Description

I have a TabPanel component which uses addBody() to gather a Collection of child Panels.

public void addBody(IRender element) {
super.addBody(element);
log.info("Panel: " + element + " " + element.getClass().getName());
if (element instanceof Panel)

{ Panel panel = (Panel) element; panel.setTabPanel(this); _panels.add(panel); }

}

This code worked in Tapesty 3.0 but in 4.0 it breaks because element is a dynamic proxy as the logging output shows below:

[11/17/05 11:26:59:253 CST] 0000004f TabPanel I com.webify.webapp.wlib.tabpanel.TabPanel addBody Panel: TextToken[type=TEXT location=classpath:/com/webify/webapp/wlib/shell/LHSMenu.html offset=165 length=10] org.apache.tapestry.parse.TextToken
[11/17/05 11:26:59:253 CST] 0000004f TabPanel I com.webify.webapp.wlib.tabpanel.TabPanel addBody Panel: $Panel_12@36725f10[Home/$Template.lhs.servicesPanel] $Panel_12
[11/17/05 11:26:59:269 CST] 0000004f TabPanel I com.webify.webapp.wlib.tabpanel.TabPanel addBody Panel: TextToken[type=TEXT location=classpath:/com/webify/webapp/wlib/shell/LHSMenu.html offset=7198 length=6] org.apache.tapestry.parse.TextToken

Is there a better way to get a component's children of a specific class?