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javax.tv.service.selection.package.html Maven / Gradle / Ivy

  



Provides a mechanism to select a Service for
presentation. The ServiceContext interface abstracts
receiver resources required to tune to and present the content of a
service, such a tuner, MPEG decoder, screen real estate, and
interactive content handlers. The ServiceContext.select()
method constitutes a high-level mechanism by which applications may
cause the receiver to tune to a desired service, demultiplex the
necessary service components, present the audio and video, and launch
any associated applications. Applications launched by the
ServiceContext.select() method are said to "run" within the
ServiceContext.


Due to the scarce nature of the resources embodied by a
ServiceContext, implementations may limit the total
number of simultaneous ServiceContext objects to a very
small number, perhaps even one.  (ServiceContext objects
in the destroyed state do not count toward this total.)
Given appropriate security permissions, it is always possible to
access (via {@link
javax.tv.service.selection.ServiceContextFactory#getServiceContexts})
or create (via {@link
javax.tv.service.selection.ServiceContextFactory#createServiceContext})
at least one ServiceContext instance.


@see javax.tv.service.selection.ServiceContext
@see javax.tv.service.selection.ServiceContextFactory