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
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:
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Nested Class SummaryNested ClassesModifier and TypeClassDescriptionprotected classA protected nested class containing per-child information in thechildrenhashtable.protected classSubclasses may subclass this nested class to represent a proxy for each BeanContextServiceProvider.protected static classsubclasses may subclass this nested class to add behaviors for each BeanContextServicesProvider.Nested classes/interfaces declared in class java.beans.beancontext.BeanContextSupportBeanContextSupport.BCSChild, BeanContextSupport.BCSIterator
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Field SummaryFieldsModifier and TypeFieldDescriptionprotected ArrayList<BeanContextServicesListener> List ofBeanContextServicesListenerobjects.Delegate for theBeanContextServiceProvider.protected intThe number of instances of a serializableBeanContextServceProvider.all accesses to theprotected transient HashMap servicesfield should be synchronized on that objectFields declared in class java.beans.beancontext.BeanContextSupportbcmListeners, children, designTime, locale, okToUseGuiFields declared in class java.beans.beancontext.BeanContextChildSupportbeanContext, beanContextChildPeer, pcSupport, rejectedSetBCOnce, vcSupportFields declared in interface java.beans.beancontext.BeanContextglobalHierarchyLockFields declared in interface java.beans.DesignModePROPERTYNAME
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Constructor SummaryConstructorsConstructorDescriptionCreate an instance that is not a delegate of another objectCreate 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
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Method SummaryModifier and TypeMethodDescriptionvoidadd a BeanContextServicesListenerbooleanaddService(Class<?> serviceClass, BeanContextServiceProvider bcsp) add a serviceprotected booleanaddService(Class<?> serviceClass, BeanContextServiceProvider bcsp, boolean fireEvent) add a serviceprotected voidcalled from BeanContextSupport readObject before it deserializes the children ...protected voidcalled from BeanContextSupport writeObject before it serializes the children ...protected voidchildJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc) called from superclass child removal operations after a child has been successfully removed. called with child synchronized.protected BeanContextSupport.BCSChildcreateBCSChild(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.createBCSSServiceProvider(Class<?> sc, BeanContextServiceProvider bcsp) subclasses can override this method to create new subclasses of BCSSServiceProvider without having to override addService() in order to instantiate.protected final voidFires aBeanContextServiceAvailableEventindicating that a new service has become available.protected final voidfireServiceAdded(Class<?> serviceClass) Fires aBeanContextServiceEventnotifying of a new service.protected final voidFires aBeanContextServiceEventnotifying of a service being revoked.protected final voidfireServiceRevoked(Class<?> serviceClass, boolean revokeNow) Fires aBeanContextServiceRevokedEventindicating that a particular service is no longer available.Gets theBeanContextServicesassociated with thisBeanContextServicesSupport.protected static final BeanContextServicesListenerGets theBeanContextServicesListener(if any) of the specified child.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.getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) obtain a service which may be delegatedbooleanhasService(Class<?> serviceClass) has a service, which may be delegatedvoidcalled by BeanContextSupport superclass during construction and deserialization to initialize subclass transient state.protected voidcalled from setBeanContext to notify a BeanContextChild to allocate resources obtained from the nesting BeanContext.protected voidcalled from setBeanContext to notify a BeanContextChild to release resources obtained from the nesting BeanContext.voidreleaseService(BeanContextChild child, Object requestor, Object service) release a servicevoidremove a BeanContextServicesListenervoidrevokeService(Class<?> serviceClass, BeanContextServiceProvider bcsp, boolean revokeCurrentServicesNow) remove a servicevoidBeanContextServicesListener callback, propagates event to all currently registered listeners and BeanContextServices children, if this BeanContextService does not already implement this service itself.voidBeanContextServicesListener callback, propagates event to all currently registered listeners and BeanContextServices children, if this BeanContextService does not already implement this service itself.Methods declared in class java.beans.beancontext.BeanContextSupportadd, 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, writeChildrenMethods declared in class java.beans.beancontext.BeanContextChildSupportaddPropertyChangeListener, addVetoableChangeListener, firePropertyChange, fireVetoableChange, getBeanContext, getBeanContextChildPeer, isDelegated, removePropertyChangeListener, removeVetoableChangeListener, setBeanContext, validatePendingSetBeanContextMethods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods declared in interface java.beans.beancontext.BeanContextaddBeanContextMembershipListener, getResource, getResourceAsStream, instantiateChild, removeBeanContextMembershipListenerMethods declared in interface java.beans.beancontext.BeanContextChildaddPropertyChangeListener, addVetoableChangeListener, getBeanContext, removePropertyChangeListener, removeVetoableChangeListener, setBeanContextMethods declared in interface java.util.Collectionadd, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, parallelStream, remove, removeAll, removeIf, retainAll, size, spliterator, stream, toArray, toArray, toArrayMethods declared in interface java.beans.DesignModeisDesignTime, setDesignTimeMethods declared in interface java.beans.VisibilityavoidingGui, dontUseGui, needsGui, okToUseGui
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Field Details- 
servicesall accesses to theprotected transient HashMap servicesfield should be synchronized on that object
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serializableprotected transient int serializableThe number of instances of a serializableBeanContextServceProvider.
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proxyDelegate for theBeanContextServiceProvider.
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bcsListenersList ofBeanContextServicesListenerobjects.
 
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Constructor Details- 
BeanContextServicesSupportpublic 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 peer
- lcle- The current Locale for this BeanContext.
- dTime- The initial state, true if in design mode, false if runtime.
- visible- The initial visibility.
 
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BeanContextServicesSupportCreate 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 peer
- lcle- The current Locale for this BeanContext.
- dtime- The initial state, true if in design mode, false if runtime.
 
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BeanContextServicesSupportCreate 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 peer
- lcle- The current Locale for this BeanContext.
 
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BeanContextServicesSupportCreate 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
 
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BeanContextServicesSupportpublic BeanContextServicesSupport()Create an instance that is not a delegate of another object
 
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Method Details- 
initializepublic 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:
- initializein class- BeanContextSupport
 
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getBeanContextServicesPeerGets theBeanContextServicesassociated with thisBeanContextServicesSupport.- Returns:
- the instance of BeanContextthis object is providing the implementation for.
 
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createBCSChildSubclasses 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:
- createBCSChildin class- BeanContextSupport
- Parameters:
- targetChild- the child to create the Child on behalf of
- peer- the peer if the targetChild and peer are related by BeanContextProxy
- Returns:
- Subtype-specific subclass of Child without overriding collection methods
 
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createBCSSServiceProviderprotected BeanContextServicesSupport.BCSSServiceProvider createBCSSServiceProvider(Class<?> sc, BeanContextServiceProvider bcsp) subclasses can override this method to create new subclasses of BCSSServiceProvider without having to override addService() in order to instantiate.- Parameters:
- sc- the class
- bcsp- the service provider
- Returns:
- a service provider without overriding addService()
 
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addBeanContextServicesListeneradd a BeanContextServicesListener- Specified by:
- addBeanContextServicesListenerin interface- BeanContextServices
- Parameters:
- bcsl- the- BeanContextServicesListenerto add
- Throws:
- NullPointerException- if the argument is null
 
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removeBeanContextServicesListenerremove a BeanContextServicesListener- Specified by:
- removeBeanContextServicesListenerin interface- BeanContextServices
- Parameters:
- bcsl- the- BeanContextServicesListenerto remove from this context
 
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addServiceadd a service- Specified by:
- addServicein interface- BeanContextServices
- Parameters:
- serviceClass- the service class
- bcsp- the service provider
- Returns:
- true if the service was successful added, false otherwise
 
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addServiceprotected boolean addService(Class<?> serviceClass, BeanContextServiceProvider bcsp, boolean fireEvent) add a service- Parameters:
- serviceClass- the service class
- bcsp- the service provider
- fireEvent- whether or not an event should be fired
- Returns:
- true if the service was successfully added
 
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revokeServicepublic void revokeService(Class<?> serviceClass, BeanContextServiceProvider bcsp, boolean revokeCurrentServicesNow) remove a service- Specified by:
- revokeServicein interface- BeanContextServices
- Parameters:
- serviceClass- the service class
- bcsp- the service provider
- revokeCurrentServicesNow- whether or not to revoke the service
 
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hasServicehas a service, which may be delegated- Specified by:
- hasServicein interface- BeanContextServices
- Parameters:
- serviceClass- the service in question
- Returns:
- true if the service is available
 
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getServicepublic Object getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) throws TooManyListenersException obtain a service which may be delegated- Specified by:
- getServicein interface- BeanContextServices
- Parameters:
- child- the- BeanContextChildassociated with this request
- requestor- the object requesting the service
- serviceClass- class of the requested service
- serviceSelector- the service dependent parameter
- bcsrl- the- BeanContextServiceRevokedListenerto notify if the service should later become revoked
- Returns:
- a reference to this context's named
 Service as requested or null
- Throws:
- TooManyListenersException- if there are too many listeners
 
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releaseServicerelease a service- Specified by:
- releaseServicein interface- BeanContextServices
- Parameters:
- child- the- BeanContextChild
- requestor- the requestor
- service- the service
 
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getCurrentServiceClassesDescription copied from interface:BeanContextServicesGets the currently available services for this context.- Specified by:
- getCurrentServiceClassesin interface- BeanContextServices
- Returns:
- an iterator for all the currently registered service classes.
 
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getCurrentServiceSelectorsDescription copied from interface:BeanContextServicesGets the list of service dependent service parameters (Service Selectors) for the specified service, by calling getCurrentServiceSelectors() on the underlying BeanContextServiceProvider.- Specified by:
- getCurrentServiceSelectorsin interface- BeanContextServices
- Parameters:
- serviceClass- the specified service
- Returns:
- an iterator for all the currently available service selectors (if any) available for the specified service.
 
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serviceAvailableBeanContextServicesListener 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:
- serviceAvailablein interface- BeanContextServicesListener
- Overrides:
- serviceAvailablein class- BeanContextChildSupport
- Parameters:
- bcssae- The BeanContextServiceAvailableEvent fired as a result of a service becoming available
 
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serviceRevokedBeanContextServicesListener 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:
- serviceRevokedin interface- BeanContextServiceRevokedListener
- Overrides:
- serviceRevokedin class- BeanContextChildSupport
- Parameters:
- bcssre- The- BeanContextServiceRevokedEventfired as a result of a service being revoked
 
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getChildBeanContextServicesListenerprotected static final BeanContextServicesListener getChildBeanContextServicesListener(Object child) Gets theBeanContextServicesListener(if any) of the specified child.- Parameters:
- child- the specified child
- Returns:
- the BeanContextServicesListener (if any) of the specified child
 
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childJustRemovedHookcalled 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:
- childJustRemovedHookin class- BeanContextSupport
- Parameters:
- child- the child
- bcsc- the BCSChild
 
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releaseBeanContextResourcesprotected 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:
- releaseBeanContextResourcesin class- BeanContextChildSupport
 
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initializeBeanContextResourcesprotected 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:
- initializeBeanContextResourcesin class- BeanContextChildSupport
 
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fireServiceAddedFires aBeanContextServiceEventnotifying of a new service.- Parameters:
- serviceClass- the service class
 
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fireServiceAddedFires aBeanContextServiceAvailableEventindicating that a new service has become available.- Parameters:
- bcssae- the- BeanContextServiceAvailableEvent
 
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fireServiceRevokedFires aBeanContextServiceEventnotifying of a service being revoked.- Parameters:
- bcsre- the- BeanContextServiceRevokedEvent
 
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fireServiceRevokedFires aBeanContextServiceRevokedEventindicating that a particular service is no longer available.- Parameters:
- serviceClass- the service class
- revokeNow- whether or not the event should be revoked now
 
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bcsPreSerializationHookcalled 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:
- bcsPreSerializationHookin class- BeanContextSupport
- Parameters:
- oos- the- ObjectOutputStreamto use during serialization
- Throws:
- IOException- if serialization failed
 
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bcsPreDeserializationHookprotected 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:
- bcsPreDeserializationHookin class- BeanContextSupport
- Parameters:
- ois- the- ObjectInputStreamto use during deserialization
- Throws:
- IOException- if deserialization failed
- ClassNotFoundException- if needed classes are not found
 
 
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