Component's onAfterRender() is called so many times as it is depth in the
component tree + 1
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Key: WICKET-4012
URL: https://issues.apache.org/jira/browse/WICKET-4012
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.5-RC7
Reporter: Martin Grigorov
org.apache.wicket.Component.afterRender() calls
org.apache.wicket.Component.onAfterRenderChildren() which for MarkupContainers
calls afterRender() for its children.
So for code like:
WebMarkupContainer comp1 = new WebMarkupContainer("c1");
add(comp1);
WebMarkupContainer comp2 = new WebMarkupContainer("c2");
comp1.add(comp2);
WebMarkupContainer comp3 = new WebMarkupContainer("c3") {
@Override
protected void onAfterRender() {
super.onAfterRender();
System.err.println("called");
}
};
comp2.add(comp3);
you'll see "called" printed 4 times in a single request.
Additionally I think onAfterRenderChildren() should be called before
onAfterRender() in Component.afterRender(). The flow should be first-in
last-out: onBeforeRender > onBeforeRenderChildren > onAfterRenderChildren >
onAfterRender,
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