Java and Enterprise Java Beans Metamodel for Enterprise Application Integration

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Java and Enterprise Java Beans Metamodel for
Enterprise Application Integration

• Student Sergey Kiselev
• Instructor Dr. Mahmood Moussavi
• ENEL 609.23 Winter 2005

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Overview

• Motivation
• Introduction
• Physical Representation Model
• The Java and Enterprise JavaBeans metamodel for
  Enterprise Application Integration
• References

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Motivation
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Introduction

• Common Application Model (COM) is group of
  interface metamodels that consist of
• enterprise application interface metamodels
• Language metamodels
• Physical representation metamodels

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TDLang Metamodel (1)
All TDLang classes are abstract and common to all
CAM language metamodels.
TDLangClassifier is abstract, it is implemented
by language specific classifier classes. Sample
subclasses are String, integer, character, float
and addressable pointers for each language model
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TDLang Metamodel (2)

• TDLangComposedType represents the type of data
  with subcomponents, for example data
  declarations with nested elements, C structs and
  union
• TDLangElement represents typed data elements
  without subcomponents, for ex. COBOLElement,
  CTypedElement
• TDLandModelElement represents either a declared
  element or classifier type

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Physical Representation Model Type Descriptor
Metamodel

• Ex long type in Java is identical to binary
  type in COBOL, so type may be converted without
  side effect. But alphanumeric type in COBOL is
  fixed in size and if mapped to Java types, loses
  this property. So tools that mix languages in
  server environment (e.g. Java and COBOL) should
  find how faithfully one language can represent
  the types of other.
• Therefore, Type Descriptor metamodel describes
  physical representation of specific data type for
  particular platform and compiler

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Java metamodel
TDLangElement is used to tie TypedElements into
data typing and type composition structure that
this model provides, as well as JavaTypes
TypeDescriptor diagram
JavaType diagram
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The EJB metamodel (1)
Main diagram
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The EJB metamodel (2)
EJB diagram
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EJB Data Types
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References

• 1 UMLTM Profile and Interchange Models for
  Enterprise Application Integration (EAI)
  specification. OMG Formal Specification, March
  2004, formal/04-03-26
• 2 Metamodel and UML Profile for Java and EJB
  Specification. OMG, February 2004, Version 1,
  formal/04-02-02
• 3 Arrington, C.T., Rayhan, S.H., Enterprise
  Java with UML. OMG Press, Wiley Publishing, Inc.,
  2003

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Thank You