New PDF release: Building Scalable and High-Performance Java Web Applications

By Greg Barish

ISBN-10: 0201729563

ISBN-13: 9780201729566

I initially picked up this booklet pondering that it's going to function a layout consultant. As i began interpreting it i spotted this was once now not fairly the case. This e-book describes how J2EE often might be utilized to create scalable and trustworthy net purposes. The ebook introduces a number of the points of J2EE applied sciences akin to JSP, Servlets, EJB's, JMS, JDBC, and so on. and explains how these applied sciences give a contribution to internet software functionality. The publication doesn't supply what i might reflect on OO layout styles or any genuine trend similar layout info. Regardless, i discovered the booklet informative, stress-free and one of many fastest to learn books i've got encountered concerning Java. It solidified my knowing of the features of the J2EE platform and did so in a concise method. there have been simply enough code examples within the ebook to exemplify a few of the applied sciences with no changing into tedious.

i might certainly suggest this ebook to somebody desirous to examine J2EE applied sciences, most likely simply after examining a primary publication at the Java language itself. I advised this booklet to my supervisor because it might supply an individual a transparent figuring out of using the final platform with no moving into gory API point details.

the one cause I provide this publication four stars rather than five is because of the truth that the identify, very likely by chance, is a section deceiving. whereas functionality was once mentioned, i'd think of it cursory. A name alongside the strains of 'An assessment of J2EE, A Scalable and excessive functionality software improvement Platform.' could have been in the direction of applicable than its present identify. i think i'm now higher ready to leap into a precise J2EE layout trend book.

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5 minutes). This is unacceptable. Perhaps we can replicate the service 100 times and service all 100 clients at once. Then the fastest, slowest, and average times will all be at least 3 seconds. For the sake of example, suppose that each copy of the large Confirm-and-Pay-for-a-Product module requires 5 Mb (the code requires much less, but the code to have it function as an application service might very well require that much). Replicating the larger module 100 times— even if we have enough hardware to support it—means that we need 500 Mb of memory just to deal with 100 clients that want to use this one piece of functionality simultaneously!

Definitions and applications of roles), and other runtime dependencies and information. Part of a sample EJB deployment descriptor file is shown here. DataSource Container By robots@Team-Sky Team -Sky Without going into the details of what a deployment descriptor is made of, we can observe that it is simply an XML file that contains metadata about the EJB or the application component being deployed. As an XML file, the deployment descriptor helps to ensure the portability of deployment—independent of the deployment platform, the same set of properties can be used.

As an XML file, the deployment descriptor helps to ensure the portability of deployment—independent of the deployment platform, the same set of properties can be used. The XML file is, after all, just a text file that is independent of the operating system and CPU. If you are new to XML, you may find it helpful to skip ahead to the first part of Chapter 12. To illustrate how deployment descriptors can contain information about security roles and privileges, consider the following example. Listing 3-1 Sample deployment descriptor ...

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Building Scalable and High-Performance Java Web Applications Using J2EE Technology by Greg Barish


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