[WICKET-6795] Avoid needlessly splitting and joining strings in AjaxEventBehavior

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 9.0.0-M5
• Fix Version/s: 9.0.0
• Component/s: wicket-core
• Assignee: Thomas Heigl
• Reporter: Thomas Heigl
• Created: 29/May/20 15:52
• Updated: 31/May/20 14:57
• Resolved: 31/May/20 14:57

Description

AjaxEventBehavior.getEvent() splits JS event names on whitespace because the behavior can be bound to multiple events (i.e. "change click").

Since most behaviors are bound to a single event, this costly operation can be avoided by checking for whitespace before splitting and re-joining the strings.

More than 1s of my 30s test of rendering components with ajax behaviors was spent in this method: