java.beans.beancontext: public interface: BeanContextServiceProvider

java.beans.beancontext
public interface: BeanContextServiceProvider [javadoc | source]

All Known Implementing Classes:
BCSSProxyServiceProvider

One of the primary functions of a BeanContext is to act a as rendezvous between JavaBeans, and BeanContextServiceProviders.

A JavaBean nested within a BeanContext, may ask that BeanContext to provide an instance of a "service", based upon a reference to a Java Class object that represents that service.

If such a service has been registered with the context, or one of its nesting context's, in the case where a context delegate to its context to satisfy a service request, then the BeanContextServiceProvider associated with the service is asked to provide an instance of that service.

The ServcieProvider may always return the same instance, or it may construct a new instance for each request.

Method from java.beans.beancontext.BeanContextServiceProvider Summary:
getCurrentServiceSelectors, getService, releaseService

Method from java.beans.beancontext.BeanContextServiceProvider Detail:
public Iterator getCurrentServiceSelectors(BeanContextServices bcs, Class serviceClass) Invoked by `BeanContextServices`, this method gets the current service selectors for the specified service. A service selector is a service specific parameter, typical examples of which could include: a parameter to a constructor for the service implementation class, a value for a particular service's property, or a key into a map of existing implementations.
public Object getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector) Invoked by `BeanContextServices`, this method requests an instance of a service from this `BeanContextServiceProvider`.
public void releaseService(BeanContextServices bcs, Object requestor, Object service) Invoked by `BeanContextServices`, this method releases a nested `BeanContextChild`'s (or any arbitrary object associated with a `BeanContextChild`) reference to the specified service.

Method from java.beans.beancontext.BeanContextServiceProvider Detail:

 public Iterator getCurrentServiceSelectors(BeanContextServices bcs,
    Class serviceClass)Invoked by BeanContextServices, this method
gets the current service selectors for the specified service.
A service selector is a service specific parameter,
typical examples of which could include: a
parameter to a constructor for the service implementation class,
a value for a particular service's property, or a key into a
map of existing implementations.

 public Object getService(BeanContextServices bcs,
    Object requestor,
    Class serviceClass,
    Object serviceSelector)Invoked by BeanContextServices, this method
requests an instance of a
service from this BeanContextServiceProvider.

 public  void releaseService(BeanContextServices bcs,
    Object requestor,
    Object service)Invoked by BeanContextServices,
this method releases a nested BeanContextChild's
(or any arbitrary object associated with a
BeanContextChild) reference to the specified service.