public interface BeanContext extends BeanContextChild, Collection, DesignMode, Visibility
The BeanContext acts a logical hierarchical container for JavaBeans.
Beans
, BeanContextChild
, BeanContextMembershipListener
, PropertyChangeEvent
, DesignMode
, Visibility
, Collection
static final Object globalHierarchyLock
This global lock is used by both BeanContext
and BeanContextServices
implementors to serialize changes in a BeanContext
hierarchy and any service requests etc.
Object instantiateChild(String beanName) throws IOException, ClassNotFoundException
Instantiate the javaBean named as a child of this BeanContext
. The implementation of the JavaBean is derived from the value of the beanName parameter, and is defined by the java.beans.Beans.instantiate()
method.
beanName
- The name of the JavaBean to instantiate as a child of this BeanContext
BeanContext
IOException
- if an IO problem occursClassNotFoundException
- if the class identified by the beanName parameter is not foundInputStream getResourceAsStream(String name, BeanContextChild bcc) throws IllegalArgumentException
Analagous to java.lang.ClassLoader.getResourceAsStream()
, this method allows a BeanContext
implementation to interpose behavior between the child Component
and underlying ClassLoader
.
name
- the resource namebcc
- the specified childInputStream
for reading the resource, or null
if the resource could not be found.IllegalArgumentException
- if the resource is not validURL getResource(String name, BeanContextChild bcc) throws IllegalArgumentException
Analagous to java.lang.ClassLoader.getResource()
, this method allows a BeanContext
implementation to interpose behavior between the child Component
and underlying ClassLoader
.
name
- the resource namebcc
- the specified childURL
for the named resource for the specified childIllegalArgumentException
- if the resource is not validvoid addBeanContextMembershipListener(BeanContextMembershipListener bcml)
Adds the specified BeanContextMembershipListener
to receive BeanContextMembershipEvents
from this BeanContext
whenever it adds or removes a child Component
(s).
bcml
- the BeanContextMembershipListener to be addedvoid removeBeanContextMembershipListener(BeanContextMembershipListener bcml)
Removes the specified BeanContextMembershipListener
so that it no longer receives BeanContextMembershipEvent
s when the child Component
(s) are added or removed.
bcml
- the BeanContextMembershipListener
to be removed
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