- java.lang.Object
-
- java.beans.beancontext.BeanContextChildSupport
-
- java.beans.beancontext.BeanContextSupport
-
- java.beans.beancontext.BeanContextServicesSupport
-
- All Implemented Interfaces:
- BeanContext, BeanContextChild, BeanContextServiceRevokedListener, BeanContextServices, BeanContextServicesListener, DesignMode, PropertyChangeListener, VetoableChangeListener, Visibility, Serializable, Iterable, Collection, EventListener
public class BeanContextServicesSupport extends BeanContextSupport implements BeanContextServices
This helper class provides a utility implementation of the java.beans.beancontext.BeanContextServices interface.
Since this class directly implements the BeanContextServices interface, the class can, and is intended to be used either by subclassing this implementation, or via delegation of an instance of this class from another through the BeanContextProxy interface.
- Since:
- 1.2
- See Also:
- Serialized Form
-
-
Nested Class Summary
Nested Classes Modifier and Type Class and Description protected class
BeanContextServicesSupport.BCSSChild
protected class
BeanContextServicesSupport.BCSSProxyServiceProvider
protected static class
BeanContextServicesSupport.BCSSServiceProvider
subclasses may subclass this nested class to add behaviors for each BeanContextServicesProvider.-
Nested classes/interfaces inherited from class java.beans.beancontext.BeanContextSupport
BeanContextSupport.BCSChild, BeanContextSupport.BCSIterator
-
-
Field Summary
Fields Modifier and Type Field and Description protected ArrayList
bcsListeners
List of BeanContextServicesListener objects.protected BeanContextServicesSupport.BCSSProxyServiceProvider
proxy
Delegate for the BeanContextServiceProvider.protected int
serializable
The number of instances of a serializable BeanContextServceProvider.protected HashMap
services
all accesses to theprotected transient HashMap services
field should be synchronized on that object-
Fields inherited from class java.beans.beancontext.BeanContextSupport
bcmListeners, children, designTime, locale, okToUseGui
-
Fields inherited from class java.beans.beancontext.BeanContextChildSupport
beanContext, beanContextChildPeer, pcSupport, rejectedSetBCOnce, vcSupport
-
Fields inherited from interface java.beans.beancontext.BeanContext
globalHierarchyLock
-
Fields inherited from interface java.beans.DesignMode
PROPERTYNAME
-
-
Constructor Summary
Constructors Constructor and Description BeanContextServicesSupport()
Create an instance that is not a delegate of another objectBeanContextServicesSupport(BeanContextServices peer)
Create an instance with a peerBeanContextServicesSupport(BeanContextServices peer, Locale lcle)
Create an instance using the specified localeBeanContextServicesSupport(BeanContextServices peer, Locale lcle, boolean dtime)
Create an instance using the specified Locale and design mode.BeanContextServicesSupport(BeanContextServices peer, Locale lcle, boolean dTime, boolean visible)
Construct a BeanContextServicesSupport instance
-
Method Summary
Methods Modifier and Type Method and Description void
addBeanContextServicesListener(BeanContextServicesListener bcsl)
add a BeanContextServicesListenerboolean
addService(Class serviceClass, BeanContextServiceProvider bcsp)
add a serviceprotected boolean
addService(Class serviceClass, BeanContextServiceProvider bcsp, boolean fireEvent)
add a serviceprotected void
bcsPreDeserializationHook(ObjectInputStream ois)
called from BeanContextSupport readObject before it deserializes the children ...protected void
bcsPreSerializationHook(ObjectOutputStream oos)
called from BeanContextSupport writeObject before it serializes the children ...protected void
childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc)
called from superclass child removal operations after a child has been successfully removed.protected BeanContextSupport.BCSChild
createBCSChild(Object targetChild, Object peer)
Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.protected BeanContextServicesSupport.BCSSServiceProvider
createBCSSServiceProvider(Class sc, BeanContextServiceProvider bcsp)
subclasses can override this method to create new subclasses of BCSSServiceProvider without having to overrride addService() in order to instantiate.protected void
fireServiceAdded(BeanContextServiceAvailableEvent bcssae)
Fires a BeanContextServiceAvailableEvent indicating that a new service has become available.protected void
fireServiceAdded(Class serviceClass)
Fires a BeanContextServiceEvent notifying of a new service.protected void
fireServiceRevoked(BeanContextServiceRevokedEvent bcsre)
Fires a BeanContextServiceEvent notifying of a service being revoked.protected void
fireServiceRevoked(Class serviceClass, boolean revokeNow)
Fires a BeanContextServiceRevokedEvent indicating that a particular service is no longer available.BeanContextServices
getBeanContextServicesPeer()
Gets the BeanContextServices associated with this BeanContextServicesSupport.protected static BeanContextServicesListener
getChildBeanContextServicesListener(Object child)
Gets the BeanContextServicesListener (if any) of the specified child.Iterator
getCurrentServiceClasses()
Gets the currently available services for this context.Iterator
getCurrentServiceSelectors(Class serviceClass)
Gets the list of service dependent service parameters (Service Selectors) for the specified service, by calling getCurrentServiceSelectors() on the underlying BeanContextServiceProvider.Object
getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl)
obtain a service which may be delegatedboolean
hasService(Class serviceClass)
has a service, which may be delegatedvoid
initialize()
called by BeanContextSupport superclass during construction and deserialization to initialize subclass transient state.protected void
initializeBeanContextResources()
called from setBeanContext to notify a BeanContextChild to allocate resources obtained from the nesting BeanContext.protected void
releaseBeanContextResources()
called from setBeanContext to notify a BeanContextChild to release resources obtained from the nesting BeanContext.void
releaseService(BeanContextChild child, Object requestor, Object service)
release a servicevoid
removeBeanContextServicesListener(BeanContextServicesListener bcsl)
remove a BeanContextServicesListenervoid
revokeService(Class serviceClass, BeanContextServiceProvider bcsp, boolean revokeCurrentServicesNow)
remove a servicevoid
serviceAvailable(BeanContextServiceAvailableEvent bcssae)
BeanContextServicesListener callback, propagates event to all currently registered listeners and BeanContextServices children, if this BeanContextService does not already implement this service itself.void
serviceRevoked(BeanContextServiceRevokedEvent bcssre)
BeanContextServicesListener callback, propagates event to all currently registered listeners and BeanContextServices children, if this BeanContextService does not already implement this service itself.-
Methods inherited from class java.beans.beancontext.BeanContextSupport
add, addAll, addBeanContextMembershipListener, avoidingGui, bcsChildren, childDeserializedHook, childJustAddedHook, classEquals, clear, contains, containsAll, containsKey, copyChildren, deserialize, dontUseGui, fireChildrenAdded, fireChildrenRemoved, getBeanContextPeer, getChildBeanContextChild, getChildBeanContextMembershipListener, getChildPropertyChangeListener, getChildSerializable, getChildVetoableChangeListener, getChildVisibility, getLocale, getResource, getResourceAsStream, instantiateChild, isDesignTime, isEmpty, isSerializing, iterator, needsGui, okToUseGui, propertyChange, readChildren, remove, remove, removeAll, removeBeanContextMembershipListener, retainAll, serialize, setDesignTime, setLocale, size, toArray, toArray, validatePendingAdd, validatePendingRemove, vetoableChange, writeChildren
-
Methods inherited from class java.beans.beancontext.BeanContextChildSupport
addPropertyChangeListener, addVetoableChangeListener, firePropertyChange, fireVetoableChange, getBeanContext, getBeanContextChildPeer, isDelegated, removePropertyChangeListener, removeVetoableChangeListener, setBeanContext, validatePendingSetBeanContext
-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
-
Methods inherited from interface java.beans.beancontext.BeanContext
addBeanContextMembershipListener, getResource, getResourceAsStream, instantiateChild, removeBeanContextMembershipListener
-
Methods inherited from interface java.beans.beancontext.BeanContextChild
addPropertyChangeListener, addVetoableChangeListener, getBeanContext, removePropertyChangeListener, removeVetoableChangeListener, setBeanContext
-
Methods inherited from interface java.util.Collection
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray
-
Methods inherited from interface java.beans.DesignMode
isDesignTime, setDesignTime
-
Methods inherited from interface java.beans.Visibility
avoidingGui, dontUseGui, needsGui, okToUseGui
-
-
-
-
Field Detail
-
services
protected transient HashMap services
all accesses to theprotected transient HashMap services
field should be synchronized on that object
-
serializable
protected transient int serializable
The number of instances of a serializable BeanContextServceProvider.
-
proxy
protected transient BeanContextServicesSupport.BCSSProxyServiceProvider proxy
Delegate for the BeanContextServiceProvider.
-
bcsListeners
protected transient ArrayList bcsListeners
List of BeanContextServicesListener objects.
-
-
Constructor Detail
-
BeanContextServicesSupport
public BeanContextServicesSupport(BeanContextServices peer, Locale lcle, boolean dTime, boolean visible)
Construct a BeanContextServicesSupport instance
- Parameters:
peer
- The peer BeanContext we are supplying an implementation for, if null the this object is its own peerlcle
- The current Locale for this BeanContext.dTime
- The initial state, true if in design mode, false if runtime.visible
- The initial visibility.
-
BeanContextServicesSupport
public BeanContextServicesSupport(BeanContextServices peer, Locale lcle, boolean dtime)
Create an instance using the specified Locale and design mode.- Parameters:
peer
- The peer BeanContext we are supplying an implementation for, if null the this object is its own peerlcle
- The current Locale for this BeanContext.dtime
- The initial state, true if in design mode, false if runtime.
-
BeanContextServicesSupport
public BeanContextServicesSupport(BeanContextServices peer, Locale lcle)
Create an instance using the specified locale- Parameters:
peer
- The peer BeanContext we are supplying an implementation for, if null the this object is its own peerlcle
- The current Locale for this BeanContext.
-
BeanContextServicesSupport
public BeanContextServicesSupport(BeanContextServices peer)
Create an instance with a peer- Parameters:
peer
- The peer BeanContext we are supplying an implementation for, if null the this object is its own peer
-
BeanContextServicesSupport
public BeanContextServicesSupport()
Create an instance that is not a delegate of another object
-
-
Method Detail
-
initialize
public void initialize()
called by BeanContextSupport superclass during construction and deserialization to initialize subclass transient state. subclasses may envelope this method, but should not override it or call it directly.- Overrides:
initialize
in classBeanContextSupport
-
getBeanContextServicesPeer
public BeanContextServices getBeanContextServicesPeer()
Gets the BeanContextServices associated with this BeanContextServicesSupport.- Returns:
- the instance of BeanContext this object is providing the implementation for.
-
createBCSChild
protected BeanContextSupport.BCSChild createBCSChild(Object targetChild, Object peer)
Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.
- Overrides:
createBCSChild
in classBeanContextSupport
- Parameters:
targetChild
- the child to create the Child on behalf ofpeer
- the peer if the targetChild and peer are related by BeanContextProxy
-
createBCSSServiceProvider
protected BeanContextServicesSupport.BCSSServiceProvider createBCSSServiceProvider(Class sc, BeanContextServiceProvider bcsp)
subclasses can override this method to create new subclasses of BCSSServiceProvider without having to overrride addService() in order to instantiate.
-
addBeanContextServicesListener
public void addBeanContextServicesListener(BeanContextServicesListener bcsl)
add a BeanContextServicesListener- Specified by:
addBeanContextServicesListener
in interfaceBeanContextServices
- Parameters:
bcsl
- theBeanContextServicesListener
to add- Throws:
NullPointerException
-
removeBeanContextServicesListener
public void removeBeanContextServicesListener(BeanContextServicesListener bcsl)
remove a BeanContextServicesListener- Specified by:
removeBeanContextServicesListener
in interfaceBeanContextServices
- Parameters:
bcsl
- theBeanContextServicesListener
to remove from this context
-
addService
public boolean addService(Class serviceClass, BeanContextServiceProvider bcsp)
add a service- Specified by:
addService
in interfaceBeanContextServices
- Parameters:
serviceClass
- the service to addbcsp
- theBeanContextServiceProvider
associated with the service
-
addService
protected boolean addService(Class serviceClass, BeanContextServiceProvider bcsp, boolean fireEvent)
add a service
-
revokeService
public void revokeService(Class serviceClass, BeanContextServiceProvider bcsp, boolean revokeCurrentServicesNow)
remove a service- Specified by:
revokeService
in interfaceBeanContextServices
- Parameters:
serviceClass
- the service to revoke from this BeanContextServicesbcsp
- the BeanContextServiceProvider associated with this particular service that is being revokedrevokeCurrentServicesNow
- a value oftrue
indicates an exceptional circumstance where theBeanContextServiceProvider
orBeanContextServices
wishes to immediately terminate service to all currently outstanding references to the specified service.
-
hasService
public boolean hasService(Class serviceClass)
has a service, which may be delegated- Specified by:
hasService
in interfaceBeanContextServices
- Parameters:
serviceClass
- the service in question- Returns:
- true if the service is available
-
getService
public Object getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) throws TooManyListenersException
obtain a service which may be delegated- Specified by:
getService
in interfaceBeanContextServices
- Parameters:
child
- theBeanContextChild
associated with this requestrequestor
- the object requesting the serviceserviceClass
- class of the requested serviceserviceSelector
- the service dependent parameterbcsrl
- theBeanContextServiceRevokedListener
to notify if the service should later become revoked- Returns:
- a reference to this context's named
Service as requested or
null
- Throws:
TooManyListenersException
-
releaseService
public void releaseService(BeanContextChild child, Object requestor, Object service)
release a service- Specified by:
releaseService
in interfaceBeanContextServices
- Parameters:
child
- theBeanContextChild
requestor
- the requestorservice
- the service
-
getCurrentServiceClasses
public Iterator getCurrentServiceClasses()
Description copied from interface:BeanContextServices
Gets the currently available services for this context.- Specified by:
getCurrentServiceClasses
in interfaceBeanContextServices
- Returns:
- an iterator for all the currently registered service classes.
-
getCurrentServiceSelectors
public Iterator getCurrentServiceSelectors(Class serviceClass)
Description copied from interface:BeanContextServices
Gets the list of service dependent service parameters (Service Selectors) for the specified service, by calling getCurrentServiceSelectors() on the underlying BeanContextServiceProvider.- Specified by:
getCurrentServiceSelectors
in interfaceBeanContextServices
- Parameters:
serviceClass
- the specified service- Returns:
- an iterator for all the currently available service selectors (if any) available for the specified service.
-
serviceAvailable
public void serviceAvailable(BeanContextServiceAvailableEvent bcssae)
BeanContextServicesListener callback, propagates event to all currently registered listeners and BeanContextServices children, if this BeanContextService does not already implement this service itself. subclasses may override or envelope this method to implement their own propagation semantics.- Specified by:
serviceAvailable
in interfaceBeanContextServicesListener
- Overrides:
serviceAvailable
in classBeanContextChildSupport
- Parameters:
bcssae
- The BeanContextServiceAvailableEvent fired as a result of a service becoming available
-
serviceRevoked
public void serviceRevoked(BeanContextServiceRevokedEvent bcssre)
BeanContextServicesListener callback, propagates event to all currently registered listeners and BeanContextServices children, if this BeanContextService does not already implement this service itself. subclasses may override or envelope this method to implement their own propagation semantics.- Specified by:
serviceRevoked
in interfaceBeanContextServiceRevokedListener
- Overrides:
serviceRevoked
in classBeanContextChildSupport
- Parameters:
bcssre
- TheBeanContextServiceRevokedEvent
fired as a result of a service being revoked
-
getChildBeanContextServicesListener
protected static final BeanContextServicesListener getChildBeanContextServicesListener(Object child)
Gets the BeanContextServicesListener (if any) of the specified child.- Parameters:
child
- the specified child- Returns:
- the BeanContextServicesListener (if any) of the specified child
-
childJustRemovedHook
protected void childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc)
called from superclass child removal operations after a child has been successfully removed. called with child synchronized. This subclass uses this hook to immediately revoke any services being used by this child if it is a BeanContextChild. subclasses may envelope this method in order to implement their own child removal side-effects.- Overrides:
childJustRemovedHook
in classBeanContextSupport
-
releaseBeanContextResources
protected void releaseBeanContextResources()
called from setBeanContext to notify a BeanContextChild to release resources obtained from the nesting BeanContext. This method revokes any services obtained from its parent. subclasses may envelope this method to implement their own semantics.- Overrides:
releaseBeanContextResources
in classBeanContextChildSupport
-
initializeBeanContextResources
protected void initializeBeanContextResources()
called from setBeanContext to notify a BeanContextChild to allocate resources obtained from the nesting BeanContext. subclasses may envelope this method to implement their own semantics.- Overrides:
initializeBeanContextResources
in classBeanContextChildSupport
-
fireServiceAdded
protected final void fireServiceAdded(Class serviceClass)
Fires a BeanContextServiceEvent notifying of a new service.
-
fireServiceAdded
protected final void fireServiceAdded(BeanContextServiceAvailableEvent bcssae)
Fires a BeanContextServiceAvailableEvent indicating that a new service has become available.- Parameters:
bcssae
- the BeanContextServiceAvailableEvent
-
fireServiceRevoked
protected final void fireServiceRevoked(BeanContextServiceRevokedEvent bcsre)
Fires a BeanContextServiceEvent notifying of a service being revoked.- Parameters:
bcsre
- the BeanContextServiceRevokedEvent
-
fireServiceRevoked
protected final void fireServiceRevoked(Class serviceClass, boolean revokeNow)
Fires a BeanContextServiceRevokedEvent indicating that a particular service is no longer available.
-
bcsPreSerializationHook
protected void bcsPreSerializationHook(ObjectOutputStream oos) throws IOException
called from BeanContextSupport writeObject before it serializes the children ... This class will serialize any Serializable BeanContextServiceProviders herein. subclasses may envelope this method to insert their own serialization processing that has to occur prior to serialization of the children- Overrides:
bcsPreSerializationHook
in classBeanContextSupport
- Throws:
IOException
-
bcsPreDeserializationHook
protected void bcsPreDeserializationHook(ObjectInputStream ois) throws IOException, ClassNotFoundException
called from BeanContextSupport readObject before it deserializes the children ... This class will deserialize any Serializable BeanContextServiceProviders serialized earlier thus making them available to the children when they deserialized. subclasses may envelope this method to insert their own serialization processing that has to occur prior to serialization of the children- Overrides:
bcsPreDeserializationHook
in classBeanContextSupport
- Throws:
IOException
ClassNotFoundException
-
-
Nederlandse vertaling
U hebt gevraagd om deze site in het Nederlands te bezoeken. Voor nu wordt alleen de interface vertaald, maar nog niet alle inhoud.Als je me wilt helpen met vertalingen, is je bijdrage welkom. Het enige dat u hoeft te doen, is u op de site registreren en mij een bericht sturen waarin u wordt gevraagd om u toe te voegen aan de groep vertalers, zodat u de gewenste pagina's kunt vertalen. Een link onderaan elke vertaalde pagina geeft aan dat u de vertaler bent en heeft een link naar uw profiel.
Bij voorbaat dank.
Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
Bron van het afgedrukte document:https://www.gaudry.be/nl/java-api-rf-java/beans/beancontext/beancontextservicessupport.html
De infobrol is een persoonlijke site waarvan de inhoud uitsluitend mijn verantwoordelijkheid is. De tekst is beschikbaar onder CreativeCommons-licentie (BY-NC-SA). Meer info op de gebruiksvoorwaarden en de auteur.
Referenties
Deze verwijzingen en links verwijzen naar documenten die geraadpleegd zijn tijdens het schrijven van deze pagina, of die aanvullende informatie kunnen geven, maar de auteurs van deze bronnen kunnen niet verantwoordelijk worden gehouden voor de inhoud van deze pagina.
De auteur Deze site is als enige verantwoordelijk voor de manier waarop de verschillende concepten, en de vrijheden die met de referentiewerken worden genomen, hier worden gepresenteerd. Vergeet niet dat u meerdere broninformatie moet doorgeven om het risico op fouten te verkleinen.