Support for domain level business object keys in EJB

Details Support for domain level business object keys in EJB Support for domain level business object keys in EJB

2006-02-14

2006-02-14

Le, Uyen (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C717S118000

Reexamination Certificate

active

06999964

ABSTRACT:
A method, system and program product for providing domain level business object keys in Enterprise JavaBeans (EJB) applications. An instance of an EntityBean object is provided with both a primary key and a domain key class. The primary key class is associated with a home selected for the EntityBean object, and the domain key class is associated with a particular business application within which the EntityBean object is being utilized. The EntityBean and associated home is utilized across different business applications, while ensuring uniqueness across the different applications. Also, a common interface for the primary key is introduced that has methods, which (1) provide an initialized instance of associated domain key classes from a concrete primary key subclass, wherein a concrete primary key subclass knows its associated domain key and is able to initialize the domain key from a subset of attributes of the primary key, and (2) creates an initialized instance of a primary key subclass from a given domain key and a context object.

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Pearson Technology Group, Advanced Java 2 Development for Enterprise Applications 2/e, Clifford j. Berg, Published Dec. 1999, Prentice Hall, chapter 8, p. 602-658. (Retrieved on Oct. 15, 2003, http://www.pearsonptg.com/samplechapter/0130848751).□□.
Steve Demuth, Client-side Java for EJB's, Jul. 2000, pp. 1-4.
OMG Business Object and Enterprise Java Beans, Dec. 17, 1999, pp. 1-5.

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