public interface PageUpdateEvent extends PageEvent<PageUpdateContext>
PageUpdateEvent which will be put on the internal Guava event bus for
synchronous events dispatching where listeners to this event can inject logic or short-circuit
processing by setting a RuntimeException
through PageUpdateEvent#setException(java.lang.RuntimeException). When a RuntimeException is
set on this PageUpdateEvent by a listener, the
org.hippoecm.hst.pagecomposer.jaxrs.services.AbstractConfigResource#publishSynchronousEvent will rethrow the
exception. The reason that this has to be done via this PageUpdateEvent object is that Guava
com.google.common.eventbus.EventBus always catches an exception thrown by a listener, even when injecting a
custom com.google.common.eventbus.SubscriberExceptionHandler
Note that listeners for PageUpdateEvents must never invoke
HstRequestContext#getSession()#save(). Changes in the JCR Session
will always be persisted by the code that posted the PageUpdateEvent to the guava event bus
getPageActionContextgetChannel, getLoggergetException, setExceptionCopyright © 2008–2020 Hippo B.V. (http://www.onehippo.com). All rights reserved.