HMVC: The layered pattern for developing strong client tiers
This hierarchical model eases the development of a Java-based client tier The task of designing and developing the client tier of an n-tier Web architecture often challenges developers. This is particularly true in the Web world, where the sheer variety…
Oracle8i’s ORB does the trick
Develop scalable and secure Java CORBA applications with Oracle8i Oracle8i features a built-in JVM, an embedded ORB (object request broker) based on OMG’s (Object Management Group) CORBA specification, and useful services such as an EJB component model. In this article,…
Build a better mouse trap
Take a look at the ins and outs of mouse events Q: What is the difference between the mouseClicked() and mousePressed() methods of the MouseListener interface? A: Java’s AWT library supplies two interfaces that allow listeners to receive mouse events.…
Java Tip 98: Reflect on the Visitor design pattern
Implement visitors in Java, using reflection Collections are commonly used in object-oriented programming and often raise code-related questions. For example, “How do you perform an operation across a collection of different objects?” One approach is to iterate through each element…
Transaction management under J2EE 1.2
Explore your options for managing transactions A transaction can be defined as an indivisible unit of work comprised of several operations, all or none of which must be performed in order to preserve data integrity. For example, a transfer of…
News and New Product Briefs (July 14, 2000)
INDEXHEAD: HMS Software unveils Java-based Palm tool HMS Software has introduced TimeControl Express, a new timesheet product for Palm devices and Pocket PCs. Written in Java KVM, the package works in conjunction with HMS’s original timekeeping product, TimeControl, and allows…
Lock on to an alternate synchronization mechanism
Learn how to implement a reader/writer lock for flexible protection Software professionals have been debating multithreaded programming for quite some time now. The notion of threading is so ingrained within the Java platform that developers can rarely create even simple…
WebGain gaining ground
The new company continues to build up its Java toolbox via product and company acquisitions July 12, 2000 — Through its recent string of product and company acquisitions, WebGain is building up its Java toolbox and moving into the market…
Microsoft drops Java tool from suite
Due to the Sun-Microsoft Java legal fight, Microsoft decides not to include Visual J++ with its upcoming Visual Studio.Net tool July 12, 2000 — Microsoft confirmed that Visual J++, its Java-based tool, will not be part of the pending Visual…
Alternative deployment methods, Part 2: The best of both worlds
Add a new trick to your Java application-deployment toolbox In my previous column, I examined the most widely used method of deploying Java client-side applications in enterprise environments — the applet — and presented several reasons for its popularity: the…
