[WICKET-4925] AbstractAjaxBehavior should clean stored reference to a component on unbind

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.5.0, 1.5.10
• Assignee: Martin Tzvetanov Grigorov
• Reporter: Vitaly Tsaplin
• Created: 13/Dec/12 04:47
• Updated: 25/May/13 20:10
• Resolved: 07/Jan/13 14:49

Description

AbstractAjaxBehavior isn't reusable right now. It saves a reference to a component on bind and doesn't properly clean it on unbind. It breaks the add/remove contract for behaviors. If a behavior is particularly expensive to create we should be able to remove it and reuse later on the same or other components.
Here is a simple fix:

@Override
public final void unbind(final Component hostComponent)

{ component = null; // call the callback onUnbind(); }

protected void onUnbind()
{
}

Issue Links

• is related to: WICKET-5205 AbstractAjaxBehavior.unbind does not clean stored reference to host component