Java Database Best Practices ppt

Organization of This Book Conventions Used in This Book Comments and Questions About the Philosophers Acknowledgments Part I: Data Architecture Chapter 1... This unique book covers E

Organization of This Book

Conventions Used in This Book Comments and Questions

About the Philosophers

Acknowledgments

Part I: Data Architecture

Chapter 1 Elements of

Management

Part II: Persistence Models

5.3 The EJB 2.0 CMP Model 5.4 Beyond CMP

Frameworks?

8.2 Persistence Approach

8.3 Persistence Operations 8.4 Searches

8.5 Beyond the Basics

Part III: Tutorials

Chapter 9 J2EE Basics

12.6 Inheritance Colophon

Index

Index SYMBOL Index A

Index K Index L Index M Index N Index O Index P Index Q Index R Index S Index T Index U Index V Index W Index X

Publisher : O'ReillyPub Date : May 2003ISBN : 0-596-00522-9Pages : 286

Unlike other books on this topic, which focus on a single

way to do things, Java

Database Best Practices takes

you through a wide variety of different ways to store and

access data, enabling you to learn which "persistence model"

is most appropriate for each type of application This unique book covers Enterprise

JavaBeans, Java Data Objects, the Java Database Connectivity API (JDBC) and other, lesser- known options.

Publisher : O'Reilly

Pub Date : May 2003ISBN : 0-596-00522-9Pages : 286

Copyright

Dedication

Preface

Audience

Organization of This Book

Conventions Used in This Book

Comments and Questions

About the Philosophers

Acknowledgments

Part I: Data Architecture

Chapter 1 Elements of Database Applications Section 1.1 Database Application Architectures Section 1.2 Component Models

Section 1.3 Persistence Models

Chapter 2 Relational Data Architecture

Section 2.1 Relational Concepts

Section 2.2 Modeling

Section 2.3 Normalization

Section 2.4 Denormalization

Section 2.5 Object-Relational Mapping

Chapter 3 Transaction Management

Section 3.1 Transactions

Section 3.2 Concurrency

Section 3.3 JDBC Transaction Management Section 3.4 Transaction Management Paradigms Part II: Persistence Models

Chapter 4 Persistence Fundamentals

Section 4.1 Patterns of Persistence

Section 4.2 A Guest Book Application

Chapter 5 EJB CMP

Section 5.1 Which CMP Model to Use? Section 5.2 The EJB 1.0 CMP Model Section 5.3 The EJB 2.0 CMP Model Section 5.4 Beyond CMP

Chapter 6 EJB BMP

Section 6.1 EJBs Revisited

Section 6.2 BMP Patterns

Section 6.3 State Management

Section 6.4 Exception Handling

Chapter 7 JDO Persistence

Section 7.1 JDO or EJB?

Section 7.2 Basic JDO Persistence

Section 7.3 EJB BMP with JDO

Chapter 8 Alternative Persistence Frameworks Section 8.1 Why Alternative Frameworks? Section 8.2 Persistence Approach

Section 8.3 Persistence Operations

Section 8.4 Searches

Section 8.5 Beyond the Basics

Part III: Tutorials

Chapter 9 J2EE Basics

Section 9.1 The Platform

Section 9.2 Java Naming and Directory Interface Section 9.3 JavaServer Pages

Section 9.4 Remote Method Invocation

Section 9.5 Enterprise JavaBeans

Chapter 10 SQL

Section 10.1 Background

Section 10.2 Database Creation

Section 10.3 Table Management

Section 10.4 Data Management

Section 12.2 Enhancement Section 12.3 Queries Section 12.4 Changes Section 12.5 Transactions Section 12.6 Inheritance Colophon

Index

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While every precaution has been taken inthe preparation of this book, the publisherand authors assume no responsibility forerrors or omissions, or for damages

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To my beautiful wife, Monique, and the child she carries.

It is never too late to become

reasonable and wise; but if the

insight comes late, there is always more difficulty in starting the

change.

​Immanuel Kant, Prolegomena to

Any Future Metaphysics

Java database programming has grownmuch more complex than it was in 1996when I wrote the first edition of my book

Database Programming with JDBC and Java (O'Reilly & Associates) The J2EE

platform did not exist Distributed

programming was RMI, JDBC was

simple, and transaction management andpersistence did not exist in the Java

vocabulary Database programming in

1996 was quite simply JDBC

programming

To place database programming in a world context, I spent much of that bookintroducing ways to build robust

real-persistence models and manage

transactions using only the JDBC API Asyou can imagine, you had to do a lot ofthings for yourself that developers nowtake for granted in the Java platform.The Java world has certainly changedsince then Not only does Java provide

you with a persistence model, it providesyou with three different persistence

models built right into the core J2EEplatform Outside the J2EE platform is thepopular JDO persistence model In

addition, many tools exist to enable you toeffectively use third-party and custompersistence models All of these choicespresent a problem for database

programmers that simply did not exist in1996: what are the best approaches todatabase programming with the Javalanguage?

This book seeks to aid the Java developer

in appreciating the different approachesJava provides for database programming

It helps you assess what approaches fit

which problems, and what the bestpractices are under each model.

This book is not an introductory text It isalso not a tutorial on any particular API It

is, instead, a description of the best

practices for using a database to drive avariety of Java application architectures

It assumes you have at least a passingfamiliarity with one or more of the Javaenterprise APIs, as well as SQL You donot, however, need to be an expert in all

of them To help you with any holes inyour knowledge of these tools, I provide afew tutorial chapters at the end of thebook

Organization of This Book

This book is divided into three distinctsections The first two sections are themeat of this book: best practices for Javadatabase architecture and development.The first section focuses on the

architecture aspect and the second section

on the development aspect

Part I

Chapter 1 is an overview of the art ofdatabase programming It examines thevarious tools and skills needed for

database programming and covers

common database application

architectures The chapter is mostly

review material for experienced databaseprogrammers

Chapter 2 tackles one of the more difficultaspects of database programming,

especially for the object-oriented

programmer: data architecture This

chapter begins with relational theory andcovers critical topics such as

normalization and object-relational

modeling It is a very important chapterfor database programmers of all levels ofexperience

Though relational architecture is one ofthe more difficult aspects of database

programming, transaction management is

where database programmers make most

of their mistakes Chapter 3 covers

transactions and transaction management

Part II

The second section begins with an

overview of persistence concepts In

short, persistence is the practice of saving

application state to a data store Chapter 4

introduces this practice with an eye onusing relational databases as your datastore for Java applications

Chapter 5 through Chapter 8 go into thebest practices for different Java

persistence models Chapter 5 begins with

container-managed persistence under theEnterprise JavaBeans component

model​for Versions 1 and 2 Chapter 6

tackles the other EJB persistence model,bean-managed persistence Chapter 7

dives into an evolving, popular

persistence model, Java Data Objects.Finally, Chapter 8 looks at alternatives tothe standard Java persistence models

with the subject in several, but not all, ofthe tutorial chapters The tutorial chaptersprovide the basic knowledge necessary tounderstand key concepts used in the firsttwo sections Don't look to any of thetutorial chapters to make you an expert inits subject matter I have provided

tutorials on the J2EE platform (Chapter

9), SQL (Chapter 10), JDBC (Chapter

11), and JDO (Chapter 12)

I recommend reading the first two sections

in order, breaking that order only to refer

to a tutorial chapter for a subject on whichyou lack familiarity

Conventions Used in This Book

The following typographical conventionsare used in this book:

Italic

Used for filenames and directorynames, programs, compilers, tools,utilities, URLs, emphasis, and firstuse of a technical term

Constant width

Used in code examples and to showthe contents of files Also used fortags, attributes, and environmentvariable names appearing in the text.

Constant width italic

Used as a placeholder to indicate anitem that should be replaced with anactual value in your program

Constant width bold

Used to highlight a particular section

or change in code, such as a custom

tag or a change in a transaction.

Comments and Questions

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or Canada)

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About the Philosophers

Daniel Dennett (Chapter 1)

Dennett, who teaches at Tufts

University, is probably my favoritephilosopher His books are actuallywell written, which is a rare qualityamong philosophy texts His worksrun the spectrum of philosophy, buthis greatest influence lies in thephilosophies of mind and science Ifyou want a fun philosophy book toread that does not require you to be a

philosopher, pick up his book Elbow

Room If you are looking for

something more weighty, but equally

accessible, read Darwin's

Dangerous Idea.

René Descartes (Chapter 2)

Though he lived from 1596 until

1650, Descartes's writings mark thebeginning of modern philosophy Hewas a French philosopher who

emphasized a solipsistic approach toepistemology He is the author of thefamous quote "Cogito, ergo sum," or

"I think, therefore I am."

Donald Davidson (Chapter 3)

Donald Davidson is among the mostimportant philosophers of the late20th century He is particularlyinfluential in the philosophy of

language and action theory He iscurrently a professor at the

University of California, Berkeley

My senior thesis at Bates Collegewas based on his writings

Ludwig Wittgenstein (Chapter 4)

Ludwig Wittgenstein was a Germanphilosopher who lived from 1889until 1951 His primary contributions

to philosophy were in the philosophy

of language He once wrote that

"philosophy is a battle against thebewitchment of our intelligence bymeans of language."

Friedrich Nietzsche (Chapter 5)

Nietzsche, who lived in Germanyfrom 1844 until 1900, is likely themost controversial "serious"

philosopher His writings have

influenced nearly every kind of

philosophy but have had their

greatest impact​both positive andnegative​in the area of ethics

Martin Heidegger (Chapter 6)

Heidegger, another 20th-centuryGerman philosopher, made popularthe movement started by EdmundHusserl known as phenomenology.Phenomenology attempts to

understand things as they presentthemselves rather than to appeal tosome sort of essential nature hiddenfrom us This movement eventuallyled to the most popularly knownphilosophical movement,

existentialism

David Kolb (Chapter 7)

David Kolb was my major adviser atBates College in Lewiston, Maine,where he is a Charles A Dana

Professor of Philosophy He haswritten extensively on Hegelianphilosophy and nonlinear writing inphilosophy

Immanuel Kant (Preface, Chapter 8)

Immanuel Kant may be the mostinfluential philosopher of the secondmillennium He was a German

philosopher who lived from 1724until 1804 He emphasized a rational

approach to all philosophical

pursuits This rationalism has had itsgreatest impact in the area of ethics,where moral principles are,

according to Kant, derived entirelyfrom reason

David Hume (Chapter 9)

David Hume was an 18th-centuryScottish philosopher who wrote on arange of philosophical subjects He

is largely responsible for the school

of philosophy known as empiricism

Ruth Garrett Millikan (Chapter 10)

Ruth Garrett Millikan is a professor

of philosophy at the University ofConnecticut She is an influentialmodern philosopher in the

philosophy of language and

epistemology

Noam Chomsky (Chapter 11)

Born in 1928, Noam Chomsky isperhaps the most famous livingphilosopher While often known forhis political activism​especiallyduring the Vietnam era​his greatestcontributions to philosophy lie in the

philosophy of language.

Jean-Paul Sartre (Chapter 12)

Sartre was a novelist, a philosopher,and a member of the French

Resistance during World War II As

a philosopher, he is best known asthe force behind the existentialismmovement Existentialism goes

beyond phenomenology in its claimsabout the essential nature of things.While phenomenology claims that weshould not appeal to an essentialnature of a thing in order to

understand it, existentialism says that

no such essential nature exists A

thing is exactly as it presents itself.

So much work other than that of the authorgoes into putting together a solid book.First of all, Brett McLaughlin's editingskills and general Java knowledge havebeen critical to keeping me in line Alsocritical to the book was the contribution of

Chapter 8 on alternative persistence

frameworks by Justen Stepka I am notmuch of a fan of leaving the core platform,

so this book would have been incompletewithout his contribution

Several people contributed to reviewingthis book: Nick Kokotovich, Justen

Stepka, and Henri Yandell In addition,Monique Girgis, Andy Oram, and John