org.apache.tapestry5.services
Interface InvalidationEventHub

All Known Subinterfaces:

InternalComponentInvalidationEventHub, MessagesSource, ResourceChangeTracker, ResourceDigestManager

All Known Implementing Classes:

ComponentTemplateSourceImpl, InternalComponentInvalidationEventHubImpl, InvalidationEventHubImpl, MessagesSourceImpl, ResourceChangeTrackerImpl, ResourceDigestManagerImpl

public interface InvalidationEventHub

An object which manages a list of InvalidationListeners. There are multiple event hub services implementing this interface, each with a specific marker annotation; each can register listeners and fire events; these are based on the type of resource that has been invalidated. Tapestry has built-in support for:

message catalog resources

ComponentMessages marker annotation

component templates

ComponentTemplates marker annotation

component classes

ComponentClasses marker annotation

Starting in Tapestry 5.3, these services are disabled in production (it does nothing).

Since:

5.1.0.0

Method Summary

void	addInvalidationListener(InvalidationListener listener) Adds a listener, who needs to know when an underlying resource of a given category has changed (so that the receiver may discard any cached data that may have been invalidated).

Method Detail

addInvalidationListener

void addInvalidationListener(InvalidationListener listener)

Adds a listener, who needs to know when an underlying resource of a given category has changed (so that the receiver may discard any cached data that may have been invalidated). Does nothing in production mode.