Preface

Table of Contents

Conventions Used in this Book
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This document describes how to use transactions with your Berkeley DB, Java Edition applications. It is intended to describe how to transaction protect your application's data. The APIs used to perform this task are described here, as are the environment infrastructure and administrative tasks required by a transactional application. This book also describes multi-threaded JE applications and the requirements they have for deadlock detection.

This book describes Berkeley DB, Java Edition version 11g Release 2

This book is aimed at the software engineer responsible for writing a transactional JE application.

This book assumes that you have already read and understood the concepts contained in the Getting Started with Berkeley DB, Java Edition guide.

Conventions Used in this Book

The following typographical conventions are used within in this manual:

Class names are represented in monospaced font, as are method names. For example: "The Environment.openDatabase() method returns a Database class object."

Variable or non-literal text is presented in italics. For example: "Go to your JE_HOME directory."

Program examples are displayed in a monospaced font on a shaded background. For example:

import com.sleepycat.je.Environment;

...

// Open the environment. Allow it to be created if it does not already 
// exist.
Environment myDbEnv;

In some situations, programming examples are updated from one chapter to the next. When this occurs, the new code is presented in monospaced bold font. For example:

import com.sleepycat.je.Environment;
import com.sleepycat.je.EnvironmentConfig;
import java.io.File;

...

// Open the environment. Allow it to be created if it does not already 
// exist.
Environment myDbEnv;
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
myDbEnv = new Environment(new File("/export/dbEnv"), envConfig); 

Note

Finally, notes of special interest are represented using a note block such as this.