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Guy Rish

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Java applets are a much-maligned technology in the Internet world. Originally a major focus of the Java platform, they've retreated from their former place in the spotlight. Problems with browsers, corporate conflicts, and being outflanked by faster and (arguably) lighter-weight tools like Macromedia's Flash have diminished the popularity of applets considerably. Despite this, they continue to be used for a variety of purposes. What's more, they're often the only solution since most other technologies have focused on limited platforms while Java purports to be usable everywhere. Overview For several versions of ColdFusion, applets have enhanced the client side of a number of ColdFusion applications. While CFML has a tag, CFAPPLET, for integrating with applets, some applets have actually prompted the creation of specialized tags just for their functionality. Tags lik... (more)

A Cold Cup O'Joe Part 7 of 8

In Part 5 (CFDJ, Vol. 3, issue 8), "Java CFX Basics," I identified some shortcomings of the CFX model. In Part 7, I demonstrate a number of workarounds and solutions to these problems. In many cases what I present here is viable across the board for all CFX types. However, this series deals specifically with Java interoperability, so I'll leave the modifications to you. Complex Data Types One of the critical problems with the CFX model is the inability to pass complex data types into and out of a CFX. Only simple types are possible - no structures, no arrays, and only a single qu... (more)

A Cold Cup o'Joe - Part 1

There are times during the development of a ColdFusion application when CFML is not the best tool for the job. While this might seem to be a contradiction, it's true nonetheless. Allaire recognized this and while CFML has gotten to be a pretty pumped up scripting language, sometimes it's necessary to get a little help. That help can come in a big way from Java in the form of regular classes, applets, servlets, EJB, and CFX tags. Building these components in Java gives you access to a powerful array of language extensions that are simply not available or are impractical to implem... (more)

A Cold Cup o' Joe Part2

One of the most important lessons to be learned with any Internet technology is to play nicely with others. In the ever-expanding horizons of ColdFusion this means Java and in the scope of this article, servlets. There are times when ColdFusion and servlets seem to overlap, and people have a tendency to see them as competing product technologies. There are, however, numerous areas where they can act in a complementary fashion, seeming less like warring camps and more like cooperative agents. Servlets can provide access to the wide array of Java libraries, which can be used to enh... (more)

Part 1: Gateways to Fun

The new release of ColdFusion has some interesting new Java features that just beg for a return and so here we are again! As with the previous series, I'll take the time to cover the basics of these new features before I dig a bit deeper. Event Gateways Undoubtedly one of the coolest new Java features in ColdFusion MX 7 is event gateways - opening up a whole new set of possibilities that were, at best, difficult, and at worst, impossible, with previous versions of ColdFusion. Providing a ColdFusion-friendlier means for working with new network protocols to more mundane things li... (more)