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CRUD Operations with JPA

The following subsections explain how to use JPA for CRUD database operations:

CRUD Database Operations with JPA

Shows how to use Java/JPA to store, retrieve, update & delete.

ObjectDB CRUD Examples

CRUD operations are explained and demonstrated in these manual pages. We do not have specific ... Support So what would be an efficient solution to these CRUD operations in terms of EMF and Transactions? I'm finding these examples: http://www.objectdb.com/java/jpa/persistence/crud difficult as

Lazy loading does not work - crud takes long

Lazy loading does not work - crud takes long

Chapter 3 - Using JPA

This chapter explains how to manage ObjectDB databases using the Java Persistence API (JPA). The first two pages introduce basic JPA interfaces and concepts: The next section explains how to use JPA for database CRUD operations: More advanced topics (e.g. locking and events) are discussed in the last section:

Chapter 1 - Quick Tour

ObjectDB databases and perform basic CRUD operations (Create/Store, Retrieve, Update and Delete ... , that hold the point's x and y coordinates. The program demonstrates CRUD database operations by storing

Obtaining a JPA Database Connection

().commit(); The next section explains in more detail how to use the EntityManager and transactions for CRUD database operations.

Deleting JPA Entity Objects

Explains how to use JPA to delete (remove) entity objects from the database.

Updating JPA Entity Objects

Explains how to use JPA to delete (remove) entity objects from the database.

Step 3: Add a Main Class

Explains how to add the JPA tutorial Main class in NetBeans.

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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