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Java NIO
Many serious Java programmers, especially enterprise Java
programmers, consider the new I/O API--called NIO for New
Input/Output--the most important feature in the 1.4 version
of the Java 2 Standard Edition. The NIO package includes
many things that have been missing from previous editions of
Java that are critical to writing
high-performance,
large-scale applications: improvements in the areas of
buffer management, scalable network and file I/O,
character-set support, and regular expression matching.
Most of all, it boosts performance and speed dramatically.
Java NIO explores the new I/O capabilities of version 1.4 in
detail and shows you how to put these features to work to
greatly improve the efficiency of the Java code you write.
This compact volume examines the typical challenges that
Java programmers face with I/O and shows you how to take
advantage of the capabilities of the new I/O features.
You?ll learn how to put these tools to work using examples
of common, real-world I/O problems and see how the new
features have a direct impact on responsiveness,
scalability, and reliability. The book includes:
A rundown of the new features in NIO
Basic and advanced I/O Concepts
Binary I/O and the new buffer classes
Memory mapped files and file locking
Character I/O: encoding, decoding and transforming character
data
Regular Expressions and the new java.util.regex package
Muliplexing with java.nio
Because the NIO APIs supplement the I/O features of version
1.3, rather than replace them, you'll also learn when to use
new APIs and when the older 1.3 I/O APIs are better suited
to your particular application.
Java NIO is for any Java programmer who is interested in
learning how to boost I/O performance, but if you're
developing applications where performance is critical, such
as game computing or large-scale enterprise applications,
you'll want to give this book a permanent spot on your
bookshelf. With the NIO APIs, Java no longer takes a
backseat to any language when it comes to performance. Java
NIO will help you realize the benefits of these exciting new
features.
The book includes:
A rundown of the new features in NIO
Basic and advanced I/O Concepts
Binary I/O and the new buffer classes
Memory mapped files and file locking
Character I/O: encoding, decoding and transforming character data
Regular Expressions and the new java.util.regex package
Muliplexing with java.nio
Preface
1. Introduction
I/O Versus CPU Time
No Longer CPU Bound
Getting to the Good Stuff
I/O Concepts
Summary
2. Buffers
Buffer Basics
Creating Buffers
Duplicating Buffers
Byte Buffers
Summary
3. Channels
Channel Basics
Scatter/Gather
File Channels
Memory-Mapped Files
Socket Channels
Pipes
The Channels Utility Class
Summary
4. Selectors
Selector Basics
Using Selection Keys
Using Selectors
Asynchronous Closability
Selection Scaling
Summary
5. Regular Expressions
Regular Expression Basics
The Java Regular Expression API
Regular Expression Methods of the String Class
Java Regular Expression Syntax
An Object-Oriented File Grep
Summary
6. Character Sets
Character Set Basics
Charsets
The Charset Service Provider Interface
Summary
A. NIO and the JNI
B. Selectable Channels SPI
C. NIO Quick Reference
Index
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