Java Data Objects
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Java Data Objects
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Author : David Jordan
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2003-04-22
Java Data Objects written by David Jordan and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-04-22 with Computers categories.
Java Data Objects revolutionizes the way Java developers interact with databases and other datastores. JDO allows you to store and retrieve objects in a way that's natural to Java programmers. Instead of working with JDBC or EJB's container-managed persistence, you work directly with your Java objects. You don't have to copy data to and from database tables or issue SELECTs to perform queries: your JDO implementation takes care of persistence behind-the-scenes, and you make queries based on the fields of your Java objects, using normal Java syntax. The result is software that is truly object-oriented: not code that is partially object-oriented, with a large database-shaped lump on the back end. JDO lets you save plain, ordinary Java objects, and does not force you to use different data models and types for dealing with storage. As a result, your code becomes easier to maintain, easier to re-use, and easier to test. And you're not tied to a specific database vendor: your JDO code is entirely database-independent. You don't even need to know whether the datastore is a relational database, an object database, or just a set of files. This book, written by the JDO Specification Lead and one of the key contributors to the JDO Specification, is the definitive work on the JDO API. It gives you a thorough introduction to JDO, starting with a simple application that demonstrates many of JDO's capabilities. It shows you how to make classes persistent, how JDO maps persistent classes to the database, how to configure JDO at runtime, how to perform transactions, and how to make queries. More advanced chapters cover optional features such as nontransactional access and optimistic transactions. The book concludes by discussing the use of JDO in web applications and J2EE environments. Whether you only want to read up on an interesting new technology, or are seriously considering an alternative to JDBC or EJB CMP, you'll find that this book is essential. It provides by far the most authoritative and complete coverage available.
Core Java Data Objects
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Author : Sameer Tyagi
language : en
Publisher: Prentice Hall Professional
Release Date : 2003
Core Java Data Objects written by Sameer Tyagi and has been published by Prentice Hall Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Computers categories.
& JDO's transparent persistence will accelerate software development & & Includes practical examples and best practices as well as a full case study & & Written by experienced members of the JDO Expert Group & & The CD-ROM includes community and evaluation editions of JDO software from a number of vendors
Java Data Objects
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Author : David Jordan
language : en
Publisher:
Release Date : 2003
Java Data Objects written by David Jordan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Java (Computer program language) categories.
The result is software that is truly object-oriented: not code that is partially object-oriented, with a large database-shaped lump on the back end. JDO lets you save plain, ordinary Java objects, and does not force you to use different data models and types for dealing with storage. As a result, your code becomes easier to maintain, easier to re-use, and easier to test. And you're not tied to a specific database vendor: your JDO code is entirely database-independent. You don't even need to know whether the datastore is a relational database, an object database, or just a set of files.
Java Data Objects
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Author :
language : pl
Publisher:
Release Date : 2004
Java Data Objects written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Using And Understanding Java Data Objects
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Author : David Ezzio
language : en
Publisher: Apress
Release Date : 2008-01-01
Using And Understanding Java Data Objects written by David Ezzio and has been published by Apress this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-01-01 with Computers categories.
This is a practical guide to the features and uses of JDO, with example programs and learning tools provided.
Java Data Objects
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Author : Robin M. Roos
language : en
Publisher: Addison-Wesley Professional
Release Date : 2003-01
Java Data Objects written by Robin M. Roos and has been published by Addison-Wesley Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01 with Computers categories.
CD-ROM contains: JDO implementations.
Effective Use Of Java Data Objects In Developing Database Applications Advantages And Disadvantages
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Author : Paschalis Zilidis
language : en
Publisher:
Release Date : 2004-06-01
Effective Use Of Java Data Objects In Developing Database Applications Advantages And Disadvantages written by Paschalis Zilidis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-06-01 with categories.
Currently, the most common approach in developing database applications is to use an object-oriented language for the frontend module and a relational database for the backend datastore. The major disadvantage of this approach is the well-known impedance mismatch in which some form of mapping is required to connect the objects in the frontend and the relational tuples in the backend. Java Data Objects (JDO) technology is recently proposed Java API that eliminates the impedance mismatch. By using JDO API, the programmers deal strictly with objects. JDO hides the details of the backend datastore by providing the object-oriented view of the datastore. JDO automatically handles the mapping between the objects and the underlying data in the relational database, which is hidden from the programmer. This thesis investigates the effectiveness of JDO. Part of the analysis will develop a database application using JDO. Although JDO provides the benefits of object-orientation in design and implementation of the databases, it is not immune from problems and limitations. The thesis will also analyze the advantages and disadvantages of using JDO and discuss the areas requiring improvements in future releases.
Java Data Object
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Author :
language : zh-CN
Publisher: O'Reilly Taiwan
Release Date : 2003
Java Data Object written by and has been published by O'Reilly Taiwan this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Java (Computer program language) categories.
Data Structures And Other Objects Using Java
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Author : Michael Main
language : en
Publisher: Addison-Wesley Longman
Release Date : 2006
Data Structures And Other Objects Using Java written by Michael Main and has been published by Addison-Wesley Longman this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Data structures (Computer science) categories.
Michael Main's gentle approach to data structures and objects has introduced thousands of beginning programmers to foundational data structures using the practical Java language. This Third Edition makes the most of the enhancements and advantages of Java 5.0 including the use of generic data types. An early group of chapters reviews the key aspects of object-oriented programming giving students the foundation for understanding significant programming concepts. With this framework they are able to accomplish writing functional data structures by using a five-step method for working with data types; understanding the data type abstractly, writing a specification, using the data type, designing and implementing the data type, and analyzing the implementation. Students learn to think analytically about the efficiency and efficacy of design while gaining exposure to useful Java classes libraries. The flexibility of Data Structures and Other Objects Using Java allows instructors to structure their course around a certain emphasis, such as early coverage of recursion and sorting, or to accelerate the pace of the course.
Evaluation Von Java Data Objects
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Author : Martin Uhlig
language : de
Publisher: diplom.de
Release Date : 2002-02-18
Evaluation Von Java Data Objects written by Martin Uhlig and has been published by diplom.de this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-02-18 with Computers categories.
Inhaltsangabe:Einleitung: Enterprise JavaBeans haben sich in jüngster Zeit zu einer Standardtechnologie für Enterprise-Anwendungen insbesondere im eBusiness-Bereich entwickelt. Dies liegt nicht zuletzt an der umfangreichen Unterstützung automatischer Persistenz durch Container-Managed Persistence. An vielen Spezifikationsänderungen zwischen den einzelnen EJB-Versionen wird aber auch ersichtlich, dass dieses Persistenzframework noch nicht vollständig ausgereift ist. Vor allem komplexe Abhängigkeiten zwischen Entity Beans verursachen häufig gravierende Probleme. Eine faszinierende und vielversprechende Alternative zu Enterprise JavaBeans (insb. Entity Beans) scheint sich durch die Java Data Objects zu bieten. Insbesondere das Problem eines effizienten Persistenzframeworks mit vielen komplexen Beziehungen zwischen den Entity -Objekten wird hier adressiert. Die vorliegende Arbeit bietet eine Einführung in Java Data Objects, gefolgt von einem Kapitel zu praktischen Erfahrungen beim Einsatz von Java Data Objects und Enterprise JavaBeans in einem Projekt, und schließt mit einem Vergleich zwischen Java Data Objects, Enterprise JavaBeans und CocoBase. Die persistente Speicherung von Daten in Datenbanken, Dateisystemen, Hostumgebungen (allgemein Datenspeicher oder Enterprise Information System) ist Bestandteil fast jedes Softwaresystems. Werden diese Anwendungen mit der Programmiersprache Java entwickelt, so repräsentieren Objekte im Hauptspeicher des Computers die Daten zur Lauf- zeit. Für die dauerhafte Speicherung dieser Daten gibt es verschiedene Ansätze, die jeweils spezifische Vor- und Nachteile aufweisen. Diese betreffen sowohl die technische Umsetzung als auch die Anwendbarkeit durch den Programmierer. Die derzeit primär eingesetzten Verfahren sind Serialisierung, Zugriff auf eine relationale Datenbank mittels SQL über JDBC (Java Database Connectivity), Enterprise JavaBeans (häufig ebenfalls im Zusammenspiel mit einer relationalen Datenbank und über SQL) und verschiedene, zueinander inkompatible Persistenzframeworks. Obwohl sich beispielsweise die Serialisierung aus Anwendersicht relativ leicht benutzen lässt, leidet sie bei der Speicherung von komplexen Objektgraphen unter ihrer Inflexibilität. Die Java Database Connectivity erfordert vom Programmierer das Erlernen einer deklarativen Anfragesprache (SQL), welche ein gänzlich anderes als das objekt-orientierte Programmierparadigma darstellt. Außerdem muss sich der Programmierer mit [...]