Multiple choice technology programming languages

Which are the features in EJB 2.0?

  1. A Portable finder query text

  2. Container managed persistence

  3. Local interfaces for session beans

  4. XML based deployment descriptors
Reveal answer Fill a bubble to check yourself
A,B,C,D Correct answer
Explanation

EJB 2.0 introduced several major enhancements: EJB QL for portable finder queries (eliminating the need for Finder methods in home interfaces), enhanced container-managed persistence with relationships (CMR), local interfaces to avoid remote call overhead for co-located beans, and standardized XML deployment descriptors. Local interfaces apply to both session and entity beans, improving performance for in-process calls.

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