scholarly journals Enterprise Java Beans with ReactiveX.

2019 ◽  
Author(s):  
Anil Kumar Bheemaiah
Keyword(s):  
Design Pattern ◽  
Persistence Layer ◽  
Java Ee ◽  
Java Beans ◽  
Enterprise Java

Abstract:This publication is on the automation of persistence, with the example of a Legacy solution, in the form of Enterprise Java Beans. While Java EE and EJB’s are depreciated. They are bridged to the present models of SaaS and serverless computing, through the introduction of two new stateful beans, StreamBean and EventBean, for functional, reactive and Cloud based automated persistence with the ability to implement any design pattern template with the Bean.This paper is on the transition from imperative programming in SQL to a NoSQL based serverless design with automation of the persistence layer in the cloud.

scholarly journals Performance modeling of the SPECjAppServer business case using LQN templates

2021 ◽  
Author(s):  
Graham Cheng
Keyword(s):  
Queueing Networks ◽  
Performance Modeling ◽  
Early Stage ◽  
Business Case ◽  
Stage Of Development ◽  
Large Systems ◽  
Java Beans ◽  
Business Requirements ◽  
Enterprise Java ◽  
Over Time

Enterprise Java Beans (EJB) are one such tool that developers can choose to help them simplify the technical aspects, allowing them to focus more on the business requirements. However, as the enterprise solution is developed and constrained, there are several factors that need to be determined but are unknown at this early stage of development. Modeling these systems to predict the unknown is a possible solution that can save both time and money. However. as hardware and architectural aspects change over time, the model may need to change as well, which may be a very difficult task in the case of large systems. This paper presents the use of EJB templates of Layered Queueing Networks to handle the change for both the software and architecture of the SPECjAppServer Business Case. In this work, two LQN models have been developed and their results have been discussed.

A Service-Based Approach to Components for Effective Business-IT Alignment

2003 ◽  
pp. 230-257
Author(s):  
Zoran Stojanovic ◽  
Ajantha Dahanayake
Keyword(s):  
System Analysis ◽  
Building Blocks ◽  
Analysis And Design ◽  
It Alignment ◽  
Component Based Development ◽  
Business It Alignment ◽  
Way Of Thinking ◽  
Business Objects ◽  
Java Beans ◽  
Enterprise Java

Although Component-Based Development (CBD) platforms and technologies, such as CORBA, COM+/.NET and Enterprise Java Beans (EJB), are now de facto standards for implementation and deployment of complex enterprise distributed systems, the full benefit of the component way of thinking has not yet been gained. Current CBD approaches and methods treat components mainly as binary-code implementation packages or as larger grained business objects in system analysis and design. Little attention has been paid to the potential of the component way of thinking in filling the gap between business and information technology (IT) issues. This chapter proposes a service-based approach to the component concept representing the point of convergence of business and technology concerns. The approach defines components as the main building blocks of business-driven service-based system architecture that provides effective business-IT alignment.

I2SD: reverse engineering Sequence Diagrams from Enterprise Java Beans with interceptors

IET Software ◽  
2013 ◽  
Vol 7 (3) ◽  
pp. 150-166 ◽  
Author(s):  
Serguei Roubtsov ◽  
Alexander Serebrenik ◽  
Aurelién Mazoyer ◽  
Mark G.J. Brand ◽  
Ella Roubtsova
Keyword(s):  
Reverse Engineering ◽  
Sequence Diagrams ◽  
Java Beans ◽  
Enterprise Java

Enterprise Java Beans (EJB)

2013 ◽  
pp. 212-239
Author(s):  
Rainer Oechsle
Keyword(s):  
Java Beans ◽  
Enterprise Java
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