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Understanding Jini Technology: A Deep Dive into Mobile Object Infrastructure and Programming Models

Jini Technology, developed by Sun Microsystems, offers a unique infrastructure for dynamic, mobile object systems. This model emphasizes discovery, join operations, and service interactions, enhancing programming paradigms with interchangeable vocabularies and extendable patterns. Leveraging the Java environment, Jini supports portable binary code, dynamic loading, and safe execution through a strongly-typed language. This paper explores Jini’s capabilities, the importance of infrastructure, and how language independence and interoperability open doors for enriching programming models and interactions in distributed systems.

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Understanding Jini Technology: A Deep Dive into Mobile Object Infrastructure and Programming Models

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Presentation Transcript

  1. Jinitm TechnologyMore Than Patterns Jim Waldo Jini Architect Sun Microsystems, Inc.

  2. Jini is a System • Infrastructure • Mobile objects • Discovery/Join • Lookup • Programming model • Services

  3. Patterns Make Sense • Describe the programming model • Alternate vocabulary • Extend the programming model • What other interactions make sense • What has worked in other systems

  4. Jini requires infrastructure • Leverage Javatm environment • Portable binary code • Dynamic loading • Code verification • Safe, typed language • Ad-hoc networking requires this • Stub code belongs to service • Moves to client on demand • New participants can implement VM

  5. Language Independence • Unclear how to have a language-independent • Type system • Mobile objects • In other languages, you lack • VM for homogeneity • Verification for safety • Dynamic loading/class loaders

  6. Know What We are Doing • Patterns won't allow • Jini in other languages (that couldn't do it before) • Language independence • Interoperability with other systems • Patterns will allow • Enriching the programming model • Allow better understanding

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