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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
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
August 2002
Guy Gur-Ari |
Empower RMI with TRMI Transparent Remote Method Invocation (TRMI) extends RMI to simplify the creation of distributed applications by allowing centralized RemoteException handling and by allowing any interface to be used remotely. This article tours TRMI's inner workings. |
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 2002
John Zukowski |
Check out three collections libraries The Java Collections Framework has been a standard part of the Java core libraries since the Java 2 Platform's birth. We look at some recent changes and other options available, such as the Jakarta Commons Collections and the updated Java Generic Library (JGL) from Recursion Software. |
JavaWorld
August 1, 2003
Allen Holub |
Why extends is evil Improve your code by replacing concrete base classes with interfaces |
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
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
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
October 3, 2003
Dawid Weiss |
Discover new dimensions of scripted Java This article presents an extension to BeanShell that turns scripts into real Java classes that support inheritance, Java reflection, method overriding, and so on. The extension is designed to be fully transparent to the Java application using it. |
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... |
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
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... |
Linux Journal
May 2000
James Norton |
Dynamic Class Loading for C++ on Linux A technique that will provide developers with much flexibility in design. |
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
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
November 2001
Jeff Friesen |
Class and object initialization An exploration of class and object initialization, which introduces the strange concepts of the <clinit> and <init> methods... |
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
February 2002
Anders Eliasson |
Implement Design by Contract for Java using dynamic proxies The Design by Contract (DBC) theory can dramatically raise software quality and reusability levels by forcing you to think in terms of contracts. Contracts formally specify the responsibility relationship between a client (class user) and a supplier (class). Additionally, DBC clearly separates specification (what) from implementation (how). This article explains DBC's importance in object-oriented development and describes a DBCProxy framework that achieves DBC transparently in Java using dynamic proxy classes. |
JavaWorld
January 2001
Jean-Pierre Dube |
Printing in Java, Part 3 Part 3 of our series on Java printing introduces you to the print framework. Working on top of the Java Print API, the framework will make printing pages much easier by providing such features as a print-preview facility, a portable page-setup dialog, and graphics primitives... |
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... |
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... |
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
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
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... |
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
March 2002 |
Letters to the Editor JavaWorld readers warn about synchronization; present a Servlet 2.2-compliant solution for mixing protocols in Web apps; suggest using the Data Object Access design pattern with the Value Object design pattern... etc. |
JavaWorld
September 2000
Frank Sommers |
Activatable Jini services, Part 1: Implement RMI activation Jini services must be long-lived and resilient, and must efficiently manage their computational resources with little user intervention. This article shows how to use RMI activation to manage computational resources and increase the availability of Jini services... |
JavaWorld
October 2000
Frank Sommers |
Activatable Jini services, Part 2: Patterns of use This article concentrates on the consequences of activation in the Jini context. Sommers exponds on the issue of deactivating objects, then considers the implications of deactivation for well-designed Jini services and how the Jini helper services introduced in the 1.1 beta version of the JSK can contribute... |
JavaWorld
June 2002
Dirk Laessig |
Score big with JSR 77, the J2EE Management Specification The specification's core is based on the model of managed objects, explained in this article. JSR 77 also defines an Enterprise JavaBeans (EJB) component for easily accessing these managed objects. |
JavaWorld
December 5, 2003
Borislav Iordanov |
Dynamic server includes with local runtime context This article shows how to achieve true black-box reuse of frontend logic in the form of JSP pages or Java servlets, by wrapping the servlet request object and effectively creating a local runtime context for an included resource. |
JavaWorld
May 2002
Ryan Daigle |
Eliminate JDBC overhead Most J2EE and other types of Java applications interact in some way with information persisted in a database. Interfacing with that database involves several iterations of SQL statements, connection management, transaction lifecycles, result processing, and exception handling. The many parts of this ritualistic dance are common in all contexts; however, this replication doesn't have to exist. This article outlines a flexible framework that remedies the repetition of interacting with a JDBC-compliant database. |
JavaWorld
July 2001
Leon Messerschmidt |
Take the fast track to text generation Using text-based templates for tasks like HTML generation and mail merging can liberate developers from mundane and error-prone text generation code... |
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
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 2001 |
Java 101 study hall Brush up on Java terms, learn tips and cautions, and enter the first Java 101 reader challenge |
JavaWorld
December 2001
David Geary |
Decorate your Java code The Decorator design pattern lets you attach responsibilities to objects at runtime. This pattern proves more flexible than inheritance, which is static... |
JavaWorld
June 13, 2003
Camerlengo & Johnson |
Make the Java-Oracle9i connection This article provides Java programmers with techniques for utilizing Oracle9i's new object-oriented features such as inheritance, custom constructors, dynamic dispatch, array descriptors, and mapping strategies from a Java class hierarchy to an Oracle type hierarchy without using traditional object-relational (O/R) mapping strategies. |
JavaWorld
September 5, 2003
Allen Holub |
Why getter and setter methods are evil The getter/setter idiom is a commonplace feature of many Java programs. The use of accessors violates the basic object-oriented principle of encapsulation, so you should avoid using them. This article discusses getter/setter cons and offers an alternative design methodology. |
JavaWorld
November 2000
Abhilash Koneri |
Eliminate tedious programming: Recover data with XML and Reflection The parsing of ResultSets forms one of the most significant tasks involved in retrieving data from a database. But, as a repetitious and uninteresting assignment, it is not a favorite among developers. How to supplant ResultSet parsing in the data access objects... |
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
June 2000
Richard Monson-Haefel |
Read all about EJB 2.0 More than a new point release, the new EJB 2.0 specification embodies dramatic changes, including those found in the CMP component model and a new bean type, that enhance the flexibility and portability in your application development. |
JavaWorld
October 2002
Tarak Modi |
J2SE 1.4 breathes new life into the CORBA community, Part 3 This hands-on article shows you how to use the Portable Object Adapter to create enterprise-level applications. |
JavaWorld
September 2001
Kevin Pauli |
Pattern your way to automated regression testing In complex systems, the results of one unit test can alter the expected results of another. By applying well-established design patterns to your architecture, you can seamlessly unit test code that accesses databases... |
JavaWorld
December 2000
Victor Okunev |
Validation with pure Java The importance of employing a good data-validation framework cannot be overestimated. The core Java API has everything you need to solve this problem in the most elegant way. |
JavaWorld
March 2001
Jeffrey Peden |
Browse user interfaces for Jini services The ServiceUI specification developed by the Jini.org community defines a suggested procedure for attaching user interfaces to Jini services... |
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
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. |
JavaWorld
December 19, 2003
Frank Sommers |
Call on extensible RMI Remote Method Invocation (RMI) has become a standard communication mechanism between remote Java objects. The latest RMI framework, Jini Extensible Remote Invocation features a powerful, highly configurable RMI security mechanism. |
JavaWorld
April 2002
Jeff Friesen |
Exceptions to the programming rules, Part 2 Learn about Java's exceptions class hierarchy, how to extend those classes, how to throw objects created from exception classes, how to catch thrown objects and handle the exceptions they represent, and how to clean your code... |
