About reference

api-jpa

CascadeType.MERGE

Cascade merge operation(Enum Constant of javax.persistence.CascadeType)

 
api-jpa

CascadeType.DETACH

Cascade detach operation(Enum Constant of javax.persistence.CascadeType)

 
api-jpa

CascadeType.REMOVE

Cascade remove operation(Enum Constant of javax.persistence.CascadeType)

 
api-jpa

CascadeType.REFRESH

Cascade refresh operation(Enum Constant of javax.persistence.CascadeType)

 
api-jpa

NamedQuery.hints

(Optional) Query properties and hints.(Annotation Element of javax.persistence.NamedQuery)

 
api-jpa

CacheStoreMode.BYPASS

Don't insert into cache.(Enum Constant of javax.persistence.CacheStoreMode)

 
api-jpa

javax.persistence.NamedQuery

Specifies a static, named query in the Java Persistence query language.(Annotation of JPA)

 
forum_thread

Is it possible to using JDO and distributed transaction?

I'am new to study JDO. Can and How I use JDO an distributed transaction?(multiple database)。 Is ObjectDB also provided JCA util just like DataNucleus? ... also provided JCA util just like DataNucleus? Reference:     Spring Framework Reference Documentation       JCA, JTA, and JDO ...

 
forum_thread

@JoinColumn(nullable=false)

  During the evaluation of ObjectDB (We're currently developing with EclipseLink/mysql) I noticed was the following: ... annotations JPA Annotations for Mapping (ORM) Reference (JavaDoc) of JPA 2 ORM annotations. See JavaDoc Reference Page... , including the @JoinColumn ... entity association or element collection. See JavaDoc Reference Page... annotation (as noted in the API documentation ...

 
forum_thread

Problem with @UniqueConstraint

It seems there is a problem with @UniqueConstraint. Same annotations using hibernate works fine - an error will be thrown - duplicate name. ObjectDB - no exception will be thrown. with best regardsPeter... DDL for a primary or secondary table. See JavaDoc Reference Page... Until JPA defines Java object model level @Index ... Annotation for a database index. See JavaDoc Reference Page... / @Unique javax.jdo.annotations.Unique ...