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Tutorial
14

Step 2: Define a JPA Entity Class

.Serializable; import javax.persistence.*; @Entity public class Point implements Serializable ... is an ordinary Java class. The warning that NetBeans displays on the Guest class indicates that a persistence unit definition in an XML file is missing. This is discussed in the ObjectDB Manual
Manual
13

CRUD Operations with JPA

Explains how to use JPA for CRUD database operations (persist, retrieve, update, remove).
FAQ
13

Where can I learn how to use ObjectDB?

All about Where can I learn how to use ObjectDB? in Java/JPA database - explanations, examples, references, links and related information.
Manual
12

Strings in JPQL and Criteria Queries

to persistent string fields. as results of predefined JPQL string manipulation functions. LIKE - String ... the argument string as an int. For example: LENGTH('United States') is evaluated to 13. LENGTH
JDO Doc
12

javax.jdo.Constants

. Since: JDO 2.1 String PMF_ATTRIBUTE_PERSISTENCE_UNIT_NAME The name of the persistence manager factory element's "persistence-unit-name" attribute. The name of the persistence manager factory element's "persistence-unit-name" attribute. Since: JDO 2.1 String PMF_ATTRIBUTE_READONLY The name
Forum
11

Externalising persistence.xml properties in Glassfish?

modules (hence, many persistence-units). I realise that it can be a limitation stemming from JPA ... <persistence-unit name="invoicingTxUnit" transaction-type="JTA"> x.y.z ... --> persistence-unit> So, anyone encounter any tutorials for handling
Forum
11

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

_2_0.xsd"> <persistence-unit name="guest-pu" transaction-type="JTA">      ObjectDB Persistence Unit       com.objectdb.jpa.Provider  
JDO Doc
11

javax.jdo.annotations.Persistent

javax.jdo.annotations Annotation Persistent Target: Fields (including property get methods) Annotation for defining the persistence of a member. This corresponds to the xml elements "field ... persistent but in the non-embedded instances the member is persistent. Note that it is not portable
JPA Doc
11

javax.persistence.GenerationType

javax.persistence Enum GenerationType java.lang.Object java.lang.Enumpersistence.GenerationType> javax.persistence.GenerationType Implemented Interfaces: Serializable ... /JPA manual. GenerationType AUTO Indicates that the persistence provider should pick an appropriate
JPA Doc
11

javax.persistence.TypedQuery

javax.persistence Interface TypedQuery Superinterfaces: Query Interface used to control ... Throws: IllegalStateException - if called for a Java Persistence query language SELECT statement or ... Throws: IllegalStateException - if the query is found not to be a Java Persistence query language