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7.6. JavaTV

JavaTV applications are Java class files and meta-data encapsulated within an iTV program to be extracted by a receiver capable of executing JavaTV applications (recall Figure 7.1). JavaTV is primarily directed at an audience of Java developers who are producing iTV content, or tools for creating such content. Much of the functionality that is required by an iTV content developer is already provided by other Java platform packages, such as the PersonalJava application environment and the JMF.

The JavaTV API is simplified to include only functionality that is unique to iTV receivers and not covered by PersonalJava and JMF. Some APIs that are generic to consumer electronics devices, such as persistent storage mechanisms, are not included in the JavaTV API. These non-television specific APIs are provided in new definitions for the application environment or are already being developed in conjunction with various television standards bodies.


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