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JavaWorld April 2001 Piet Jonas |
Secure type-safe collections A framework that overcomes the standard Java Collections Framework's main problem: its containers lack the ability to restrict themselves to storing objects of a specific type. The solution uses reflection, wrapper classes, and a collection of static factory methods...  |
JavaWorld April 2001 Geoff Friesen |
Object-oriented language basics, Part 1 An introduction to object-oriented programming and how to declare classes and create objects from those classes...  |
JavaWorld August 2001 Bill W. Davis |
Dynamically extend Java applications Do you want to write programs that can be extended without source code changes? The techniques described in this article show you how to use interfaces and dynamic class loading to create highly extensible systems...  |
JavaWorld October 2001 Jeff Friesen |
Object-oriented language basics, Part 7 This final installment of Java 101's object-oriented programming series explores Java's support for polymorphism and investigates how abstract classes accommodate generalities in class hierarchies.  |
JavaWorld July 2001 Tarak Modi |
Clean up your wire protocol with SOAP, Part 4 Here's a framework based on the dynamic proxy classes in the Java 2 Platform, Version 1.3. This framework will make creating SOAP clients just as easy and intuitive as creating SOAP services...  |
JavaWorld March 2002 James Carman |
Write once, persist anywhere Most J2EE applications strive to abstract the database tier by employing the Data Access Object design pattern. This article shows you a DAO pattern framework that you can reuse on all your projects, regardless of object type...  |
JavaWorld November 2001 Michael J. Rettig |
Reflection vs. code generation You can use the power of Java's Reflection API to reduce tedious code writing, and use active code generation to overcome reflection limitations...  |
JavaWorld August 1, 2003 Allen Holub |
Why extends is evil Improve your code by replacing concrete base classes with interfaces  |
D-Lib May/Jun 2007 Saidis & Delis |
Type-consistent Digital Objects This article provides an overview of the Digital Object Prototype framework and highlights its type-conformance capabilities and shows how heterogeneous digital material can be treated in a uniform manner without resorting to custom developments.  |
JavaWorld September 2001 Jeff Friesen |
Object-oriented language basics, Part 6 Learn why Java's standard class library contains empty interfaces (such as Cloneable and Serializable). Also, examine the power of interfaces and learn why they provide more than a workaround for Java's lack of multiple implementation inheritance support...  |
JavaWorld July 18, 2003 James Carman |
Get down to business In this article, you will learn how to structure your applications such that modifications to the business object implementation do not require changes to the user interface using a simple framework for accessing your business objects.  |
JavaWorld January 2001 Wm. Paul Rogers |
Thanks type and gentle class Confusing the concepts of object and class deserves an askance look. Failing to distinguish between type and class, however, typically goes unnoticed. Yet the battle to separate implementation and interface concerns requires type-oriented thinking...  |
JavaWorld February 2001 Brian Goetz |
Design for performance, Part 2: Reduce object creation Many common Java performance problems stem from class design decisions made early in the design process, long before most developers even start thinking about performance. The author discusses some techniques for reducing temporary object creation...  |
JavaWorld September 2000 Bruce Eckel |
Everything is an object, Part 1 This two-part article, excerpted from Chapter 2 in Thinking in Java 2nd. ed., moves you to the point where you can write your first Java program. Bruce Eckel gives an overview of the essentials...  |
D-Lib April 2007 |
Setting the Foundations of Digital Libraries: The DELOS Manifesto The DELOS Network of Excellence on Digital Libraries now envisions a Digital Library as a tool at the center of intellectual activity having no logical, conceptual, physical, temporal, or personal borders or barriers to information.  |
JavaWorld June 2001 Jeff Friesen |
Object-oriented language basics, Part 3 The author explores composition and demonstrates its value in object-oriented programming. Composition and inheritance are design consepts related in a manner similar to both sides of the same coin...  |
JavaWorld May 2001 Markus Dorn |
Reading objects is easy with SAX By following some simple rules when mapping objects to XML, you can easily read object structures, even complex ones, from XML. See how you can use SAX to eliminate that complexity...  |
JavaWorld August 2001 Jeff Friesen |
Object-oriented language basics, Part 5 Every Java class has a superclass. In the absence of an extends keyword, Object is that superclass. Object takes center stage as this article presents its 11 methods...  |
JavaWorld October 2000 Bruce Eckel |
Everything is an object, Part 2 Eckel takes you through name visibility and using components from other libraries; the static keyword; and comments and embedded documentation. By the end, you should be able to build your first Java program...  |
JavaWorld November 2000 Jeremy Blosser |
Explore the Dynamic Proxy API In Java 1.3, Sun introduced the Dynamic Proxy API, which can basically mimic any interface. Add that to an abstract data model, and you can conform any loosely typed data to a strongly typed interface. This article discusses some of the Dynamic Proxy API's many benefits...  |
JavaWorld September 2001 Wally Flint |
Access control for partial exposure With Java's built-in access control, you can't expose fields and methods to some classes in a package, while hiding them from others in the same package...  |
JavaWorld October 2001 |
Java 101 study hall Brush up on Java terms, learn tips and cautions, and enter the first Java 101 reader challenge  |
D-Lib April 2003 Staples et al. |
The Fedora Project An Open-source Digital Object Repository Management System  |
JavaWorld November 2001 Kurt Jacobs |
Subscribe now for rapid prototyping Developers often find themselves reengineering an API to meet the demand of evolving requirements. By providing a framework for a more flexible system, the Publisher-Subscriber pattern can help you overcome some problems associated with object dependencies...  |
JavaWorld April 2002 Snehal Patel |
Navigate data with the Mapper framework Whether you must read records from a text file and write to a database table, or read from an enterprise information architecture and write to a Web service, information exchange becomes effortless using this simple design pattern...  |
JavaWorld July 2000 Todd M. Greanier |
Flatten your objects The Java Serialization API is used by many other Java APIs (like RMI and JavaBeans) to persist objects beyond the duration of a running virtual machine. This article tries to demystify the secrets of the Java Serialization API.  |
D-Lib May 2004 Michael F. Goodchild |
The Alexandria Digital Library Project: Review, Assessment, and Prospects Why the Alexandria Digital Library (ADL) was established, how it progressed, and how the vision of ADL continues to evolve.  |
JavaWorld May 2001 Jeff Friesen |
Object-oriented language basics, Part 2 In this article, you'll gain an understanding about fields, parameters, and local variables and learn to declare and access fields and methods...  |
JavaWorld December 2001 Jeff Friesen |
Trash talk, Part 1 One feature that distinguishes Java from other computer languages is its garbage collection abilities. In this article, This article introduces garbage collection and shows how Java's optional support for it affects your programs...  |
JavaWorld February 2002 David Geary |
Take control with the Proxy design pattern The Proxy design pattern in Java lets you substitute a proxy for an object. In that capacity, proxies prove useful in many situations, ranging from Web services to Swing icons...  |
JavaWorld April 4, 2003 Jean-Pierre Norguet |
Java FTP client libraries reviewed This article explains how to write FTP client code in Java using available libraries. It compares an exhaustive list of FTP libraries, presents pros and cons of each library, and helps decision makers choose the most appropriate one for their needs.  |
D-Lib Jan/Feb 2010 Reilly & Tupelo-Schneck |
Digital Object Repository Server: A Component of the Digital Object Architecture This paper introduces the Digital Object Repository Server, the most recent instantiation of the Corporation for National Research Initiatives' repository work.  |
JavaWorld March 2003 David Geary |
An inside view of Observer The Observer pattern lets you build extensible software with pluggable objects by allowing communication between loosely coupled objects. The author explores the Observer pattern, how it's used throughout the Java 2 SDK, and how you can implement the pattern in your own code.  |
D-Lib February 2001 Manfred Thaller |
From the Digitized to the Digital Library Many, if not most, digitization projects have aimed at existing collections as individual servers. A digital library, however, should be more than a digitized one...  |
JavaWorld April 2001 Wm. Paul Rogers |
Reveal the magic behind subtype polymorphism A careful examination of polymorphism reveals that polymorphic behavior is best understood in terms of type, rather than as dependent on overriding implementation inheritance. That understanding allows developers to fully take advantage of polymorphism...  |
JavaWorld February 2002 Jeff Friesen |
Classes within classes As with fields and methods, Java allows classes to be members of other classes. This article explores Java's support for class nesting...  |
JavaWorld October 3, 2003 Allen Holub |
Create client-side user interfaces in HTML This article presents a variant on Swing's JEditorPane that makes it possible to specify an entire screen of your client-side user interface (UI) in HTML.  |
D-Lib Jul/Aug 2000 Thornton Staples & Ross Wayland |
Virginia Dons FEDORA: A Prototype for a Digital Object Repository After shopping for a digital library system unsuccessfully, in 1999 we created a digital library research and development group and set about creating the system that we need.  |
JavaWorld November 2000 M. Jeff Wilson |
Get smart with proxies and RMI RMI enables developers to either get a remote reference to a distributed object, in which all method calls are forwarded to the server object, or get a copy of the remote object and invoke on it locally. You can combine these approaches in a way that is transparent to the client code...  |
D-Lib June 2001 John S. Erickson |
A Digital Object Approach to Interoperable Rights Management Fine-grained policy enforcement enabled by a digital object infrastructure...  |
JavaWorld April 2001 Kelly Davis & Robert Di Marco |
Manage distributed sessions Using RMI and the Proxy API introduced in JDK 1.3, this article describes a technique that allows one or more servlet servers to maintain session information on one or more session servers. By adopting this architecture, no single point of failure will exist for session management...  |
JavaWorld September 2001 Jian Zhong |
Step into the J2EE architecture and process By reading this article, you will better understand many important J2EE architecture topics, and be able to apply that knowledge to extend and modify this simple methodology to solve your special business problems...  |
JavaWorld March 2001 Brian Goetz |
Design for performance, Part 3: Remote interfaces Many common Java performance problems stem from class design decisions made early in the design process, long before most developers even start thinking about performance. This article examines performance issues specific to remote applications...  |
D-Lib August 2006 Lavoie, Henry & Dempsey |
A Service Framework for Libraries As libraries continue to engage with an ever-shifting information landscape, it is apparent that their efforts would be facilitated by a shared view of how library services should be organized and surfaced in these new settings and contexts.  |
JavaWorld August 2002 Greg Holling |
Put Java in the fast lane This article presents some techniques for locating performance bottlenecks in Java applications and offers suggestions for improving Java performance. Along the way, you'll look at some of the classes in the new java.nio package.  |
D-Lib November 2000 Dale Flecker |
Harvard's Library Digital Initiative Building a First Generation Digital Library Infrastructure...  |
D-Lib April 2000 Wendy P. Lougee |
Book Review: Digital Libraries This book by William Arms draws boundaries broadly and covers issues from the perspective of all the relevant stakeholders -- i.e., librarians, technologists, publishers, and users.  |
Technology Research News April 6, 2005 |
Water Shifts Rubber's Shape Researchers have developed a material that can be shaped, but changes back to a permanent shape when immersed in water.  |
JavaWorld March 2002 Dennis M. Sosnoski |
XML documents on the run, Part 2 Frameworks for event-driven programming simplify working with complex document structures in SAX2 (Simple API for XML). This article extends the handling approach introduced in Part 1 by making it fully modular and easily extensible for nested document components...  |
Science News July 28, 2007 Julie J. Rehmeyer |
Math Trek: A Twist on the Mobius Band Researchers work out the shape of a paper strip.  |