Earlier this year I wrote a_IT技术专题(J2EE Standard Dramatically Changes Application Server Market @ JDJ)

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引言： Earlier this year I wrote a

·hibernate: custom collection types »显示摘要«

摘要：on mondays tip ( javalobby.org/java/forums/t18300.html">hibernate: discriminators and table-per-subclass ) it was claimed by a reader that one major failing of hibernate was that you couldnt inject yo......

·good fences make good functions »显示摘要«

摘要： theres nothing like learning a new language to help clear the coding cobwebs. a while back i was beginning to feel pretty bored with programming. writing code was growing stale, and i needed somethin......

J2EE Standard Dramatically Changes Application Server Market @ JDJ

earlier this year i wrote an article describing how enterprise javabeans had impacted the application server market, causing a convergence between web application servers and distributed object and transaction servers. with the advent of the j2ee (java 2 enterprise edition) standard, were about to witness another seismic shift in this market.

its worth looking at what j2ee is -and isnt. j2ee builds on the java 2 standard, and adds specifications for most of the important programming interfaces in an application server. key interfaces are ejb for middle-tier logic, and servlets and java server pages (jsp) for dynamically generated html pages. other apis include jndi (naming and directories), jms (messaging), javamail, jta/jts (transactions) and rmi-iiop (remote communications protocol).

while the j2ee specification comes with a reference implementation and compliance tests, its important to understand that j2ee doesnt cover a number of apis and functions that are central to todays application servers. for example, there are no specifications for how to connect to legacy or nonrelational data sources; how to create applications that interact with other systems via xml; how to cluster, load-balance and fail-over a server; or how to manage a server.

benefits of standardizatio
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·eclipse: easy rcp »显示摘要«

摘要： if you already have a working plugin, you might skip right to " recipe 2: creating a .properties file " below. however, its useful and easy to first experiment by creating a new plugin that automati......

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