Download PDF by Brett McLaughlin: Building Java Enterprise Applications, Vol. 1: Architecture

By Brett McLaughlin

ISBN-10: 0596001231

ISBN-13: 9780596001230

After studying the synopsis i used to be able to delve into a few making plans and top practices interpreting fabric. whereas the booklet specializes in a middle instance, it does not now not supply sufficient info on WHY yes judgements have been made and doesn't supply adequate investigate alternatives.

The publication will be even more worthwhile if it concentrated much less on one concrete instance and took a step upwards into what I mistook the synopsis and identify for: "Making Strategic and Technology/Business-Driven judgements on your Java Applications".

Aside from misinterpreting the content material of the publication, the final content material lacked. although delivering a course down a unmarried pattern, there has been some distance too little concentrate on easy methods to cross approximately construction Java firm purposes and an excessive amount of specialise in explaining the code. whereas the writer attempted to maintain succinct, he didn't contact at the middle principals and theories enough.

I suggest the ebook just for informal, fast studying because it is out-dated (due to the EJB 2 themes lined) and doesn't dive into the true middle of making plans program existence cycles.

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Extra resources for Building Java Enterprise Applications, Vol. 1: Architecture (O'Reilly Java)

Example text

I'll begin by discussing the overall design of the data. This involves defining the schema for the data without worrying about whether the data will be stored in a database, directory server, or any other specific technology. Once you've determined how the information for the entire application will be laid out, you can begin to decide where specific data needs to be stored. In the case of the Forethought application, it has already been decided that data will be stored in one database (ignoring replication issues) and one directory server (ignoring failover instances).

All SQL statements here will work on any database that accepts standard ANSI SQL. However, when vendor-specific optimizations can dramatically affect performance, they will be noted in the text, and examples of SQL for a specific database will be shown if appropriate. Additionally, you should check Appendix A and your database's documentation for additional enhancements that can be made. com/ contain different SQL scripts that will run on a variety of different databases. 1 User Storage Now that you've made it through all the preliminary steps, you can start creating tables.

Your initial impulse may be to place the constraint at the database (or directory server) level, rather than in Java code. However, this type of constraint can often result in error messages returned to Java programs that are difficult to deal with at runtime. Additionally, the error message returned is often vendor-specific. " And a directory server might use an entirely different format for error reporting. As you can see, although the data is protected from invalidity, the corresponding Java code still needs to perform some checks of its own.

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Building Java Enterprise Applications, Vol. 1: Architecture (O'Reilly Java) by Brett McLaughlin

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