Geo. Infrastructure. Development. JPA Tutorial. Java persistent API is a specification and set of interfaces that helps with persistence of java objects into the database. It has been created after success of object relational mapping frameworks - the most popular is Hibernate. JPA defines standard basic set of features that every object relational mapping framework should have. Almost all current O/R frameworks implement JPA specification. Of course, most of them have additional features to set them apart. Saving/loading data with JPA is easier, faster and less error prone than writing SQL and mapping query results to objects.
However, JPA does not free you from relational database understanding. First three chapters of this post contain configuration and set up. Table of Contents Demo Project All examples and test cases used in this tutorial are available in a project on Github. The project uses an in-memory Derby database which is created before each test case and destroyed after each test case. JPA Implementation Dependency Plugin. REST. Crawling.
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Tutorial: Android Application Development - Databases. Frameworks. Liferay. 1.3.16 - animated draggable connectors demonstration - jQuery. Spring. Machine Learning.