Writing optimized Java applications for z/OS / [Tamas Vilaghy ... et al.].

Format:

Book

Contributor:

Vilaghy, Tamas.

International Business Machines Corporation. International Technical Support Center.

Series:

IBM redbooks.

IBM redbooks

Language:

English

Subjects (All):

Java (Computer program language).

Application software--Development.

Application software.

z/OS.

Physical Description:

x, 152 p. : ill.

Edition:

1st ed.

Place of Publication:

Poughkeepsie, NY : IBM Corp., 2002.

Language Note:

English

System Details:

text file

Summary:

This IBM Redbooks publication is designed to help you write optimized Java applications for z/OS. It addresses different aspects of performance, and discusses architectures, design patterns, coding techniques, deployment, and data access issues. It applies to WebSphere for z/OS Version 4.0.1 for use with the z/OS Operating System Version 1.1and above. Using tips on writing Java-based solutions that have been collected from many different sources, we show how applying many of these tips and measuring performance can help you tune your Java application to perform better on z/OS. We describe how to use the optimization tools Introscope, JInsight, and JProbe, and provide recommendations regarding application architecture and Java coding practices. Ultimately, we illustrate how deploying the application on the z/OS WebSphere platform will provide enhanced workload management and high availability, as well as improved scalability and security.

Contents:

Front cover

Contents

Notices

Trademarks

Preface

The team that wrote this redbook

Notice

Comments welcome

Chapter 1. Introduction

1.1 Overview

1.2 Performance metrics

1.3 Environment

Chapter 2. The performance of an architecture

2.1 Overview

2.2 J2EE architecture

2.2.1 Model View Controller architecture

2.2.2 J2EE components and performance

2.2.3 World of patterns

2.3 Number of tiers

2.3.1 Logical tiers

2.3.2 Physical tiers

2.4 Scalability

Chapter 3. Tools

3.1 Performance monitoring

3.2 Introduction to tools

3.3 Introscope

3.4 JInsight

3.5 JProbe

Chapter 4. Programming techniques

4.1 Applying design patterns

4.1.1 Creational patterns

4.1.2 Structural patterns

4.1.3 Behavioral patterns

4.2 Code optimization techniques

4.2.1 Java programming techniques

4.2.2 JDBC and SQLJ

4.2.3 Servlet and JSP performance hints and tips

4.2.4 EJB programming hints and tips

Chapter 5. Data access

5.1 The sample application: OnlineBuying

5.2 Cache data to reduce remote calls

5.3 CMP versus BMP

5.4 BMP with SQLJ

5.5 Stateful vs. stateless session EJBs

Chapter 6. Deployment and execution

6.1 Isolation levels

6.2 Read-only methods

6.3 Transaction attribute

6.4 Load at server startup

6.5 JNDI lookup

Related publications

IBM Redbooks

Other resources

Referenced Web sites

How to get IBM Redbooks

IBM Redbooks collections

Index

Back cover.

Notes:

Bibliographic Level Mode of Issuance: Monograph

Includes bibliographical references (p. 147-148) and index.

OCLC:

560314475