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Java DTV API 1.3
18-Nov-2009
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Package com.sun.dtv.broadcast

Access to broadcast files and streams.

See:
          Description

Interface Summary
BroadcastFileListener The BroadcastFileListener interface is implemented by application classes which require notification of changes to BroadcastFile data.
 

Class Summary
BroadcastFile The BroadcastFile class represents file or directory data obtained from broadcast file systems.
BroadcastFileEvent The BroadcastFileEvent provides notification of a change to BroadcastFile data.
BroadcastFilesystem This class represents instances of broadcast filesystems mounted into the local filesystem.
BroadcastStream The BroadcastStream class represents stream obtained from broadcast file systems.
 

Exception Summary
BroadcastException All broadcast related exceptions MUST use this subclass of java.io.IOException in order to make different reason easier to distinguish.
 

Package com.sun.dtv.broadcast Description

Access to broadcast files and streams.

Design

Description

Provides access to broadcast file and streams through APIs that work in conjunction with the java.io package. The Java DTV API models broadcast transmission as conventional read-only disk file systems with high access latencies. In order to limit access latencies to a minimum it is strongly recommended to cache all incoming broadcast files. Most interactions with the specific transport protocols are handled by the Java TV API implementation rather than the application. The BroadcastFilesystem authenticates its content as defined by the Content and Application Model. If authentication information is available for a file, the file MUST be authenticated before it is made visible via the BroadcastFile API. If authentication fails, then the file is treated as if it does not exist.

The class java.io.File represents generic files for all data, such as files and streams. Special clarifications as described in com.sun.dtv.broadcast.BroadcastFile will also apply when used directly via java.io.File.

The Java DTV API class com.sun.dtv.broadcast.BroadcastFile subclasses java.io.File to handle broadcast file access, adding the ability to:

The Java DTV API class com.sun.dtv.broadcast.BroadcastStream subclasses java.io.File to handle broadcast stream access, adding the ability to:

Applications use the conventional file input classes of the java.io package (i.e., java.io.FileInputStream, java.io.FileReader, and java.io.RandomAccessFile) to read from a BroadcastFile or BroadcastStream object.

Since:
JavaDTV1.0
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Java DTV API 1.3
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