Preface
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## Preface

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 and multi-process JE applications and the requirements they have for deadlock detection.

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 Getting Started with Berkeley DB.

## 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()` constructor returns an `Environment` class object."

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

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

    import com.sleepycat.db.DatabaseConfig;

    ...

    // Allow the database to be created.
    DatabaseConfig myDbConfig = new DatabaseConfig();
    myDbConfig.setAllowCreate(true);

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.db.Database;
    import com.sleepycat.db.DatabaseConfig;

    ...

    // Allow the database to be created.
    DatabaseConfig myDbConfig = new DatabaseConfig();
    myDbConfig.setAllowCreate(true);
    Database myDb = new Database("mydb.db", null, myDbConfig);

### Note

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

### For More Information

Beyond this manual, you may also find the following sources of information useful when building a transactional JE application:

- Berkeley DB for Java Getting Started Guide

- Berkeley DB Programmer's Tutorial and Reference Guide

- Berkeley DB Javadoc

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