ObjectDB ObjectDB

Internal Website Search

111-120 of 200 resultsRefresh


for a criteria query TransactionRequiredException - if there is no transaction QueryTimeoutException ... and the transaction is rolled back Since: JPA 1.0 int getFirstResult() The position of the first result the query ... back TransactionRequiredException - if a lock mode has been set and there is no transaction PessimisticLockException

What is ObjectDB?

ObjectDB is an Object Oriented Database Management System (ODBMS). It provides all the standard database management services (storage and retrieval, transactions, lock management, query processing, etc.), but it uses an object oriented model to store and manage data. You can easily store ordinary

Privacy Policy

of Your data and other personal information. Disclosure of Your Personal Data Business Transactions

SELECT clause (JPQL / Criteria API)

are not associated with an EntityManager and changes to them when a transaction is active are not

Step 2: Entity Class and Persistence Unit

name="GuestbookPU" transaction-type="RESOURCE_LOCAL"> <provider>com.objectdb.jpa.Provider

Spring MVC JPA Tutorial - NetBeans Project

the application on GlassFish - change the transaction type from RESOURCE_LOCAL to JTA in

Step 1: Create a Maven Web Project

>   <dependency>     <groupId>javax.transaction</groupId>     <artifactId>jta</artifactId>     <version

Step 2: Entity Class and Persistence Unit

/xml/ns/persistence/persistence_2_0.xsd"> <persistence-unit name="GuestbookPU" transaction-type


whether the instance is persistent, transactional, dirty, new, deleted, or detached ... within the current transaction. Parameters: pc - the PersistenceCapable instance. Returns: a copy of the ObjectId of the parameter instance as of the beginning of the transaction. Since: JDO 1.0

ObjectDB 1.0 Manual

and transactions in JDO. Chapter 6 - Persistent Objects Shows how to store, retrieve, update

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support