Package org.adempiere.base.event.annotations

Class BaseEventHandler

java.lang.Object

org.adempiere.base.event.annotations.BaseEventHandler

All Implemented Interfaces:

org.osgi.service.event.EventHandler

Direct Known Subclasses:

ImportEventHandler, ModelEventHandler, ProcessEventHandler, SimpleEventHandler

public abstract class BaseEventHandler
extends Object
implements org.osgi.service.event.EventHandler

Base class for event handler that works with annotation driven event delegate (EventTopicDelegate). The implementation of event delegate doesn't have to be thread safe as a new instance of delegate is created for each event call.

Author:

hengsin

Field Summary

Fields

Modifier and Type	Field	Description
protected Class<? extends EventDelegate>	delegateClass
protected final Map<String,Method>	eventTopicMap	event topic:method

Constructor Summary

Constructors

Constructor	Description
BaseEventHandler(Class<? extends EventDelegate> delegateClass)

Method Summary

Modifier and Type	Method	Description
protected void	createTopicMap(Class<?> delegateClass)	create event topic to method mapping from annotations
Class<? extends EventDelegate>	getDelegateClass()
String	getFilter()
String[]	getTopics()
void	handleEvent(org.osgi.service.event.Event event)
protected abstract EventDelegate	newEventDelegate(org.osgi.service.event.Event event)	create new instance of event delegate
void	setEventPropertyFilter(String propertyName, String value)
void	setFilter(String filter)	set event filter

Methods inherited from class java.lang.Object

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

Field Details

eventTopicMap

protected final Map<String,Method> eventTopicMap

event topic:method

delegateClass

protected Class<? extends EventDelegate> delegateClass

Constructor Details

BaseEventHandler

public BaseEventHandler(Class<? extends EventDelegate> delegateClass)

Parameters:

delegateClass -

Method Details

createTopicMap

protected void createTopicMap(Class<?> delegateClass)

create event topic to method mapping from annotations

Parameters:

delegateClass -

getTopics

public String[] getTopics()

Returns:

arrays of event topic

getFilter

public String getFilter()

Returns:

event filter

setFilter

public void setFilter(String filter)

set event filter

Parameters:

filter -

setEventPropertyFilter

public void setEventPropertyFilter(String propertyName,
 String value)

Parameters:

propertyName -

value -

handleEvent

public void handleEvent(org.osgi.service.event.Event event)

Specified by:

handleEvent in interface org.osgi.service.event.EventHandler

newEventDelegate

protected abstract EventDelegate newEventDelegate(org.osgi.service.event.Event event)

create new instance of event delegate

Parameters:

event -

Returns:

new EventDelegate instance

getDelegateClass

public Class<? extends EventDelegate> getDelegateClass()

Returns:

event delegate class