Package org.ametys.web.cache.pageelement

Class InvalidatePageElementCacheObserver

java.lang.Object

org.apache.avalon.framework.logger.AbstractLogEnabled

org.ametys.web.cache.pageelement.InvalidatePageElementCacheObserver

All Implemented Interfaces:

Observer, Configurable, LogEnabled, Serviceable

public class InvalidatePageElementCacheObserver
extends AbstractLogEnabled
implements Observer, Serviceable, Configurable

Handles the PageElementCache based on the various PageElementCachePolicy.

Field Summary

Fields inherited from interface org.ametys.core.observation.Observer

MAX_PRIORITY, MIN_PRIORITY

Constructor Summary

Constructors

Constructor	Description
InvalidatePageElementCacheObserver()

Method Summary

Modifier and Type	Method	Description
void	configure(Configuration configuration)
int	getPriority(Event event)	Retrieves the priority to observe this event. This can be used to process a supported event before others observers.
void	observe(Event event, Map<String,Object> transientVars)	Observes an event.
void	service(ServiceManager manager)
boolean	supports(Event event)	Checks if the event is supported.

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

InvalidatePageElementCacheObserver

public InvalidatePageElementCacheObserver()

Method Details

service

public void service(ServiceManager manager)
             throws ServiceException

Specified by:

service in interface Serviceable

Throws:

ServiceException

configure

public void configure(Configuration configuration)
               throws ConfigurationException

Specified by:

configure in interface Configurable

Throws:

ConfigurationException

getPriority

public int getPriority(Event event)

Description copied from interface: Observer

Retrieves the priority to observe this event.
This can be used to process a supported event before others observers.

Specified by:

getPriority in interface Observer

Parameters:

event - the event.

Returns:

the priority where 0 the max priority and Integer.MAX_VALUE the min priority.

supports

public boolean supports(Event event)

Description copied from interface: Observer

Checks if the event is supported. If true, the observe(Event) method will be called.

Specified by:

supports in interface Observer

Parameters:

event - the event.

Returns:

true for observing this event, false otherwise.

observe

public void observe(Event event,
 Map<String,Object> transientVars)
             throws Exception

Description copied from interface: Observer

Observes an event.

Specified by:

observe in interface Observer

Parameters:

event - the event.

transientVars - transientVars passed from one Observer to another when processing a single Event. This may allow optimizations between observers.

Throws:

Exception - if an error occurs. All exceptions will be logged but not propagated, as the observation mechanism should never fail.