- All Known Subinterfaces:
BeanContext
,BeanContextServices
- All Known Implementing Classes:
BeanContextChildSupport
,BeanContextServicesSupport
,BeanContextSupport
JavaBeans wishing to be nested within, and obtain a reference to their execution environment, or context, as defined by the BeanContext sub-interface shall implement this interface.
Conformant BeanContexts shall as a side effect of adding a BeanContextChild object shall pass a reference to itself via the setBeanContext() method of this interface.
Note that a BeanContextChild may refuse a change in state by throwing PropertyVetoedException in response.
In order for persistence mechanisms to function properly on BeanContextChild instances across a broad variety of scenarios, implementing classes of this interface are required to define as transient, any or all fields, or instance variables, that may contain, or represent, references to the nesting BeanContext instance or other resources obtained from the BeanContext via any unspecified mechanisms.
- Since:
- 1.2
- See Also:
-
Method Summary
Modifier and TypeMethodDescriptionvoid
Adds aPropertyChangeListener
to thisBeanContextChild
in order to receive aPropertyChangeEvent
whenever the specified property has changed.void
Adds aVetoableChangeListener
to thisBeanContextChild
to receive events whenever the specified property changes.Gets theBeanContext
associated with thisBeanContextChild
.void
Removes aPropertyChangeListener
from thisBeanContextChild
so that it no longer receivesPropertyChangeEvents
when the specified property is changed.void
Removes aVetoableChangeListener
from thisBeanContextChild
so that it no longer receives events when the specified property changes.void
Objects that implement this interface, shall fire a java.beans.PropertyChangeEvent, with parameters: propertyName "beanContext", oldValue (the previous nestingBeanContext
instance, ornull
), newValue (the current nestingBeanContext
instance, ornull
).
-
Method Details
-
setBeanContext
Objects that implement this interface, shall fire a java.beans.PropertyChangeEvent, with parameters: propertyName "beanContext", oldValue (the previous nesting
BeanContext
instance, ornull
), newValue (the current nestingBeanContext
instance, ornull
).A change in the value of the nesting BeanContext property of this BeanContextChild may be vetoed by throwing the appropriate exception.
- Parameters:
bc
- TheBeanContext
with which to associate thisBeanContextChild
.- Throws:
PropertyVetoException
- if the addition of the specifiedBeanContext
is refused.
-
getBeanContext
BeanContext getBeanContext()Gets theBeanContext
associated with thisBeanContextChild
.- Returns:
- the
BeanContext
associated with thisBeanContextChild
.
-
addPropertyChangeListener
Adds aPropertyChangeListener
to thisBeanContextChild
in order to receive aPropertyChangeEvent
whenever the specified property has changed.- Parameters:
name
- the name of the property to listen onpcl
- thePropertyChangeListener
to add
-
removePropertyChangeListener
Removes aPropertyChangeListener
from thisBeanContextChild
so that it no longer receivesPropertyChangeEvents
when the specified property is changed.- Parameters:
name
- the name of the property that was listened onpcl
- thePropertyChangeListener
to remove
-
addVetoableChangeListener
Adds aVetoableChangeListener
to thisBeanContextChild
to receive events whenever the specified property changes.- Parameters:
name
- the name of the property to listen onvcl
- theVetoableChangeListener
to add
-
removeVetoableChangeListener
Removes aVetoableChangeListener
from thisBeanContextChild
so that it no longer receives events when the specified property changes.- Parameters:
name
- the name of the property that was listened on.vcl
- theVetoableChangeListener
to remove.
-