BeanContext (Java Platform SE 6)
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Java™ PlatformStandard Ed. 6
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java.beans.beancontext
Interface BeanContext
All Superinterfaces: BeanContextChild, Collection, DesignMode, Iterable, Visibility
All Known Subinterfaces: BeanContextServices
All Known Implementing Classes: BeanContextServicesSupport, BeanContextSupport
public interface BeanContextextends BeanContextChild, Collection, DesignMode, Visibility
The BeanContext acts a logical hierarchical container for JavaBeans.
Since:
1.2
See Also:Beans,
BeanContextChild,
BeanContextMembershipListener,
PropertyChangeEvent,
java.beans.VetoableChangeEvent,
DesignMode,
Visibility,
Collection
Field Summary
static 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.
Fields inherited from interface java.beans.DesignMode
PROPERTYNAME
Method Summary
void
addBeanContextMembershipListener(BeanContextMembershipListener bcml)
Adds the specified BeanContextMembershipListener
to receive BeanContextMembershipEvents from
this BeanContext whenever it adds
or removes a child Component(s).
URL
getResource(String name,
BeanContextChild bcc)
Analagous to java.lang.ClassLoader.getResource(), this
method allows a BeanContext implementation to interpose
behavior between the child Component
and underlying ClassLoader.
InputStream
getResourceAsStream(String name,
BeanContextChild bcc)
Analagous to java.lang.ClassLoader.getResourceAsStream(),
this method allows a BeanContext implementation
to interpose behavior between the child Component
and underlying ClassLoader.
Object
instantiateChild(String beanName)
Instantiate the javaBean named as a
child of this BeanContext.
void
removeBeanContextMembershipListener(BeanContextMembershipListener bcml)
Removes the specified BeanContextMembershipListener
so that it no longer receives BeanContextMembershipEvents
when the child Component(s) are added or removed.
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
globalHierarchyLock
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.
Method Detail
instantiateChild
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.
Parameters:beanName - The name of the JavaBean to instantiate
as a child of this BeanContext
Throws:
IOException
ClassNotFoundException - if the class identified
by the beanName parameter is not found
IOException
ClassNotFoundException
getResourceAsStream
InputStream 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.
Parameters:name - the resource namebcc - the specified child
Returns:an InputStream for reading the resource,
or null if the resource could not
be found.
Throws:
IllegalArgumentException - if
the resource is not valid
IllegalArgumentException
getResource
URL 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.
Parameters:name - the resource namebcc - the specified child
Returns:a URL for the named
resource for the specified child
Throws:
IllegalArgumentException - if the resource is not valid
IllegalArgumentException
addBeanContextMembershipListener
void addBeanContextMembershipListener(BeanContextMembershipListener bcml)
Adds the specified BeanContextMembershipListener
to receive BeanContextMembershipEvents from
this BeanContext whenever it adds
or removes a child Component(s).
Parameters:bcml - the BeanContextMembershipListener to be added
removeBeanContextMembershipListener
void removeBeanContextMembershipListener(BeanContextMembershipListener bcml)
Removes the specified BeanContextMembershipListener
so that it no longer receives BeanContextMembershipEvents
when the child Component(s) are added or removed.
Parameters:bcml - the BeanContextMembershipListener
to be removed
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Submit a bug or featureFor further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
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