Package jadex.rules.state.javaimpl

Class OAVEventHandler

java.lang.Object

jadex.rules.state.javaimpl.OAVEventHandler

public class OAVEventHandler
extends java.lang.Object

This class handles the collection and distribution OAV events to registered listeners.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.Set	added_objects	The objects that have been added in current change set.
protected java.util.Set	beanevents	The collected bean events (may be added from external thread).
protected java.util.List	directlisteners	The direct state listeners.
protected java.util.List	listeners	The bunch state listeners.
protected boolean	notifying	Flag that is only true, while listeners are being notified.
protected java.util.Set	oavevents	The collected change events.
protected java.util.Set	removed_objects	The objects that have been removed in current change set.
protected IOAVState	state	The state.

Constructor Summary

Constructors

Constructor	Description
OAVEventHandler(IOAVState state)	Create a new OAV event handler.

Method Summary

Modifier and Type	Method	Description
void	addStateListener(IOAVStateListener listener, boolean bunch)	Add a new state listener.
void	beanModified(java.lang.Object bean, OAVObjectType type, OAVAttributeType attr, java.lang.Object oldvalue, java.lang.Object newvalue)	Notification when an attribute value of a bean has been set.
protected java.util.Set	createIdSet()	Create a set for holding object ids.
void	notifyEventListeners()	Throw collected events and notify the listeners.
protected void	notifyOneEvent(java.lang.Object evt)	Notify one event to all listeners.
void	objectAdded(java.lang.Object id, OAVObjectType type, boolean root)	Notification when an object has been added to the state.
void	objectModified(java.lang.Object id, OAVObjectType type, OAVAttributeType attr, java.lang.Object oldvalue, java.lang.Object newvalue)	Notification when an attribute value of an object has been set.
void	objectRemoved(java.lang.Object id, OAVObjectType type)	Notification when an object has been removed from state.
void	removeStateListener(IOAVStateListener listener)	Remove a state listener.

Methods inherited from class java.lang.Object

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

Field Detail

state

protected IOAVState state

The state.

listeners

protected java.util.List listeners

The bunch state listeners.

directlisteners

protected java.util.List directlisteners

The direct state listeners.

oavevents

protected java.util.Set oavevents

The collected change events.

beanevents

protected java.util.Set beanevents

The collected bean events (may be added from external thread).

removed_objects

protected java.util.Set removed_objects

The objects that have been removed in current change set.

added_objects

protected java.util.Set added_objects

The objects that have been added in current change set.

notifying

protected boolean notifying

Flag that is only true, while listeners are being notified.

Constructor Detail

OAVEventHandler

public OAVEventHandler(IOAVState state)

Create a new OAV event handler.

Method Detail

addStateListener

public void addStateListener(IOAVStateListener listener,
                             boolean bunch)

Add a new state listener.

Parameters:

listener - The state listener.

removeStateListener

public void removeStateListener(IOAVStateListener listener)

Remove a state listener.

Parameters:

listener - The state listener.

notifyEventListeners

public void notifyEventListeners()

Throw collected events and notify the listeners.

notifyOneEvent

protected void notifyOneEvent(java.lang.Object evt)

Notify one event to all listeners.

Parameters:

evt - The event.

objectModified

public void objectModified(java.lang.Object id,
                           OAVObjectType type,
                           OAVAttributeType attr,
                           java.lang.Object oldvalue,
                           java.lang.Object newvalue)

Notification when an attribute value of an object has been set.

Parameters:

id - The object id.

type - The object type.

attr - The attribute type.

oldvalue - The oldvalue.

newvalue - The newvalue.

beanModified

public void beanModified(java.lang.Object bean,
                         OAVObjectType type,
                         OAVAttributeType attr,
                         java.lang.Object oldvalue,
                         java.lang.Object newvalue)

Notification when an attribute value of a bean has been set.

Parameters:

bean - The bean.

type - The object type.

attr - The attribute type.

oldvalue - The oldvalue.

newvalue - The newvalue.

objectAdded

public void objectAdded(java.lang.Object id,
                        OAVObjectType type,
                        boolean root)

Notification when an object has been added to the state.

Parameters:

id - The object id.

type - The object type.

objectRemoved

public void objectRemoved(java.lang.Object id,
                          OAVObjectType type)

Notification when an object has been removed from state.

Parameters:

id - The object id.

type - The object type.

createIdSet

protected java.util.Set createIdSet()

Create a set for holding object ids.