Get Hibernate: a J2EE™ developer's guide PDF


By Will Iverson

ISBN-10: 0321268199

ISBN-13: 9780321268198

Hibernate makes it a ways more straightforward to construct powerful, high-performance database functions with Java. Now there is a functional, hands-on consultant to utilizing Hibernate's versatile, quick object/relational endurance and question prone. Will Iverson covers each aspect of improvement with Hibernate, from its mapping method to its complex question mechanisms and transaction aid. Iverson indicates you ways to construct Hibernate suggestions which may combine with Swing, with JSP, or even with EJBs using bean-managed patience. utilizing lifelike examples, he demonstrates tips to paintings with power gadgets, deal with schema, and optimize database program functionality. After you could have mastered Hibernate's center recommendations, Iverson provides top practices, assistance, tips, and magnificence suggestions for much more potent improvement.

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Extra info for Hibernate: a J2EE™ developer's guide

Sample text

Jsp">Add Author

52 53 Edit Author Everybody makes mistakes, and so it's important to provide a mechanism for fixing mistakes. 8 shows the form that enables a user to correct author information. 8. 12, updating an Author object is similar to creating one. save() and the use of the authorID to identify the record to update. 12. getParameter("authorID")%>">

Create Post Once a user has created an author, the author can make posts.

Xml file that corresponds to the class name. xml file somewhere on the current class path. When the application is run and the Configuration object is first created, Hibernate will verify that the mapping file and the associated Java class files can actually be bound together. After a successful configuration, Hibernate returns a SessionFactory. A SessionFactory is a thread-safe object intended to be shared throughout the application. Session objects from this SessionFactory. SchemaUpdate. This single line of code connects to the database and attempts to create tables, column, and key constraints corresponding to the declared mapping files.

StaleObjectStateException. 12. 15 shows the code for editing a post. StaleObjectStateException. This is the mechanism whereby Hibernate informs the application that the attempt to UPDATE the post has failed because of a problem with the Post version. 15. StaleObjectStateException stale) { error = "This post was updated by another transaction. finder. getParameter("postID")%>">  

<% } %> Delete Post Sometimes a post is no longer of interest or covers a topic that the writer wishes had never been brought up.

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Hibernate: a J2EE™ developer's guide by Will Iverson

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