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As I've said of other Missing Manuals, if I were to write a guide, I'd want it to read like this one. Highly recommended.
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Java Data Objects provides a thorough coverage of JDO and explains how it can be used in various architectures. The reader is expected to be familiar with Java but needs only a limited knowledge of databases. In brief, Java Data Objects (JDO) insulates you from needing to know a lot about databases. JDO permits you to develop applications using your preferred Java object-oriented model, without you having to write code to translate between Java objects and how the data is stored in the database--JDO takes care of all of that for you.
The first three chapters provide a high level overview of JDO by walking through a small application, exploring each of its interfaces at a high level, and introducing the architectures it might be used in. Even if you have been away from code for a while you will be able to follow most of the code example. You can stop here if you just want to understand what JDO is all about and where it can be used. These are recommended reading for a manager.
Chapters 4 through 9 are required reading if you want to start developing JDO applications. They really get you into JDO, so you can understand it and start using it. The first three of these cover how to define persistent classes and fields, how they can be mapped to various databases (done for you) and the class enhancement process (which makes a lot of JDO transparent to you). The next three (chapter 7 through 9) bring home the power of JDO. These cover how to connect with a database, establish a transaction context and create, read, query, update and delete database objects. The material is made concrete by illustrating it with a detailed and intuitive example application. This example is carried throughout the book with sections of it explained as the concepts are covered.
Each remaining chapter covers a different JDO concept or feature (including optional features) that were introduced earlier but not covered in detail to keep the earlier chapters more understandable. These remaining topics are identity, lifecycle states & transitions, field management, cache management, nontransactional access and optimistic transactions. You can read these chapters as you feel the need for a more in-depth understanding of these concepts.
The last two chapters explain how to use JDO in an application-server environment and an Enterprise Java Beans environment. These two chapters assume you are already familiar with these environments, but I think a lot of it is understandable even if you are not.
There are five appendices with everything from the lifecycle state transitions to the collected source code for many of the classes used in the example application.
This book provides a good introduction to JDO, as well as depth on the specifics. The authors are arguably the world's most knowledgable experts on JDO, since Craig Russell is the specification lead and Dave Jordan one of the biggest contributors to the JDO expert group.
More importantly, the authors describe how to use JDO in practice, meaning how to use JDO to write a Java application that accesses persistent data transparently. There are lots of detailed, but easy to understand code examples explaining the concepts of JDO. I like the idea that the entire book uses a single application scenario. The source code is included in the appendix.
The descriptions do not depend on a particular JDO implementation. Instead, it focuses on how to write an application in a manner that is portable among different JDO implementations. Where necessary, it explains JDO's optional features and areas where JDO implementations may differ. JDO does not specify a standard for the mapping of persistent classes to specific datastores; but this is an important aspect of developing an application with JDO. There is a chapter about datastore mappings, with the focus on relational databases.
There are chapters about defining persistent classes, enhancing them, and setting up the JDO runtime environment. It is easy to transfer the provided examples to your own application environment. I like the chapter on JDOQL; it provides a good and in-depth description of the JDO query language. There are extra chapters about the identity and lifecycle of persistent instances, as well as nontransactional access of persistent data. The last two chapters describe how JDO integrates into web- and application-server environment, especially J2EE application servers.
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Surprisingly, Jon receives an anonymous blackmail note that demands he pays $250,000 to keep quiet about "the secret that nobody knows". He wonders if someone knows about the incident in 1979 when he had sex with a woman who died not long afterward. Still Jon goes about his job and though he detests the deceitfulness, he meets with Garrison anyway. Not long after their discussion, someone kills Garrison leaving Jon as the prime suspect as the last known person to have seen the victim and he wondering about the link back to his previous worst nightmare from two decades ago.
LIFE SENTENCE is an exciting legal thriller that provides so many twists and turns that readers will read in one sitting. The story line enables the audience to observe the relativity of information based on a person's LINE OF VISION as reasonably intelligent individuals interpret facts to fit their need and theory of the crime. The key charcaters including Jon are developed enough to enhance the who-done-it as it is the interpretation not just the facts that will make David Ellis' second legal thriller a fan favorite.
Harriet Klausner
Although Jon never had any specific recollection of what happened that night (drugs,sex,rock and roll), he becomes the focus of the investigation into the death of Gina Mason. Lawyers are hired, favors are called in, stories are constructed, magic is worked and the investigation into the death is closed. However, Jon Soliday never forgets and although he believes that he could not have been involved in her murder, there is so much about that night that he does not remember.
Present day, Soliday is helping Senator Grant Tully with his campaign bid for state governor. During the course of the campaign, Soliday is framed for the murder of another Tully aid. Soliday is arrested, charged and faces trial. He is represented by Bennett Carey who is a friend of sorts but much more. At the conclusion of the "trial" everyone comes out a loser.
It is hard to say more without spoiling this utterly magnificant, detailed and finely constructed piece of fiction. The surprises are endless, the writing is tight, the plot is well thought out and everything flows together in such a way that all the reader can say at the end is WOW!!!
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This beautiful book is filled with more than 200 black-and-white photographs of buildings, bridges and other structures tragically allowed to fall into disrepair, destroyed by natural disaster, or bulldozed for parking lots and malls, repeated testaments to the Gordon Curve, predicting that a building is valued most when it is new, that it is least valued and most likely to be razed at approximately 70 years of age, and that if it makes it past that nadir it will begin to rise again in value as a relic and monument.
Each chapter is preceded by several well-written and accessible pages, and each photograph is accompanied by informative paragraphs and quotes. The author delves into Chicago's beginnings as a frontier fort and its rapid growth into a bustling mercantile hive, along the way outlining the history of the peoples and policies of various times from 1803 to the 1970s, organized into ten conceptual and functional groups such as residences, hotels, railway stations, churches, arthouses, The Fire and the fairs.
The photographs are wonderful, many I've never seen before, and each is described well, though the book would benefit by containing more maps. The book is constructed of good heavyweight paper and concludes with picture sources and notes, and a good index. It should be of interest to those with some connection to Chicago, architecture or American history, particularly of the 18th and 19th century.
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This book was able to get me the rest of the way there by detailing the regulations that the USPTO puts on drawings. They're not really difficult, but they ARE specific. Don't be intimidated by them. The very simple drawing style specified by the USPTO is to allow clear reproduction and printing. My attorney charges $295 per figure, and one page can have 2 or 3 figures on it! The last application we submitted had about a dozen figures total. Some of the expense is the work of integrating and describing the drawings, but it is guaranteed to save you money if you do your own drawings. Besides, this ensures that you will be satisfied with the quality and accuracy. Don't forget you can also have the draftsman do the difficult 3-D "Figure 1" bit, and you do the simpler stuff. Like me, I'll bet you'll find it easier than you thought!
Alex
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It was, is, great. I love it. I have read the book so many times that it is literally falling apart. I'm serious. It is no longer bound. The thing is over one hundred individual pages.
The thing is I am 18 now. During finals week at college, I stumbled onto the book in my closet. I was so frazzed out and needed some mind candy, so I reread it. It is still great. I think it might be one of the greatest children's books ever. I want the other five books badly, but cannot find them.
I consider it a tragedy. Anyone with children, or an active inner child, should move heaven and earth to get this book. It is well-written, and never underestimates the intelligence of the reader, unlike many children's books.
The first line was typical. "A Hush fell on the crowd." I thought that this guy doesn't even know his grammar. Then, at the next line, "It wasn't a particularly large Hush (or something like that, hard to remember). That was when I realized this was a special book. (look, I was bored, ok?)
I read about the laser game and how it's really a test for beings (aliens and humans alike). It contains everything: romance, adventure and best of all humour. The characters are all really different and you just wish that you could be one of them.
After reading that book a gazillion times, I wanted to find the rest in the series. I decided that I should write to the publisher but I (get ready for this) LOST THE BOOK!!!
So now, here I am, just lost, trying to remember that disgusting (yes, I do still think it's disgusting) cover of that really cool sci-fi book.
One more point. I hate science fiction.
Go figure
Henry builds a cabin but his friends doesn't think it's big enough. Henry says it's big enough for all kinds of things. In the end, you find out what the cabin is perfect for.
Delightful read and a sure bet for a Baby Shower Gift!