BeanContext (Java Platform SE 6) (original) (raw)

java.beans.beancontext

Interface BeanContext

All Superinterfaces:

BeanContextChild, Collection, DesignMode, Iterable, Visibility

All Known Subinterfaces:

BeanContextServices

All Known Implementing Classes:

BeanContextServicesSupport, BeanContextSupport

public interface BeanContext

extends 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

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.

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](../../../java/io/IOException.html "class in java.io")

[ClassNotFoundException](../../../java/lang/ClassNotFoundException.html "class in java.lang")

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 name

bcc - 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](../../../java/lang/IllegalArgumentException.html "class in java.lang")

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 name

bcc - the specified child

Returns:

a URL for the named resource for the specified child

Throws:

`IllegalArgumentException` - if the resource is not valid

[IllegalArgumentException](../../../java/lang/IllegalArgumentException.html "class in java.lang")

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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For 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.

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