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public interface BeanContextChild
Disabled: no SafeJ information.
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.
BeanContext
,
PropertyChangeEvent
,
PropertyChangeListener
,
PropertyVetoException
,
VetoableChangeListener
Method Summary | |
---|---|
void |
addPropertyChangeListener(String name,
PropertyChangeListener pcl)
Adds a PropertyChangeListener
to this BeanContextChild
in order to receive a PropertyChangeEvent
whenever the specified property has changed. |
void |
addVetoableChangeListener(String name,
VetoableChangeListener vcl)
Adds a VetoableChangeListener to
this BeanContextChild
to receive events whenever the specified property changes. |
BeanContext |
getBeanContext()
Gets the BeanContext associated
with this BeanContextChild . |
void |
removePropertyChangeListener(String name,
PropertyChangeListener pcl)
Removes a PropertyChangeListener from this
BeanContextChild so that it no longer
receives PropertyChangeEvents when the
specified property is changed. |
void |
removeVetoableChangeListener(String name,
VetoableChangeListener vcl)
Removes a VetoableChangeListener from this
BeanContextChild so that it no longer receives
events when the specified property changes. |
void |
setBeanContext(BeanContext bc)
Objects that implement this interface, shall fire a java.beans.PropertyChangeEvent, with parameters: propertyName "beanContext", oldValue (the previous nesting BeanContext instance, or null ),
newValue (the current nesting
BeanContext instance, or null ). |
Method Detail |
---|
void setBeanContext(BeanContext bc) throws PropertyVetoException
Objects that implement this interface,
shall fire a java.beans.PropertyChangeEvent, with parameters:
propertyName "beanContext", oldValue (the previous nesting
BeanContext
instance, or null
),
newValue (the current nesting
BeanContext
instance, or null
).
A change in the value of the nesting BeanContext property of this BeanContextChild may be vetoed by throwing the appropriate exception.
bc
- The BeanContext
with which
to associate this BeanContextChild
.
PropertyVetoException
- if the
addition of the specified BeanContext
is refused.
PropertyVetoException
BeanContext getBeanContext()
BeanContext
associated
with this BeanContextChild
.
BeanContext
associated
with this BeanContextChild
.void addPropertyChangeListener(String name, PropertyChangeListener pcl)
PropertyChangeListener
to this BeanContextChild
in order to receive a PropertyChangeEvent
whenever the specified property has changed.
name
- the name of the property to listen onpcl
- the PropertyChangeListener
to addvoid removePropertyChangeListener(String name, PropertyChangeListener pcl)
PropertyChangeListener
from this
BeanContextChild
so that it no longer
receives PropertyChangeEvents
when the
specified property is changed.
name
- the name of the property that was listened onpcl
- the PropertyChangeListener
to removevoid addVetoableChangeListener(String name, VetoableChangeListener vcl)
VetoableChangeListener
to
this BeanContextChild
to receive events whenever the specified property changes.
name
- the name of the property to listen onvcl
- the VetoableChangeListener
to addvoid removeVetoableChangeListener(String name, VetoableChangeListener vcl)
VetoableChangeListener
from this
BeanContextChild
so that it no longer receives
events when the specified property changes.
name
- the name of the property that was listened on.vcl
- the VetoableChangeListener
to remove.
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