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forum_thread

PersistenceException UserException: Failed to validate persistence.xml

I'm really tired of looking at the same exception all day. I have DaoService which gets initialized when app starts. ... overflow of published source code examples by breaking long lines . You may mark in paragraph code words (e.g. class ... (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex source examples (> 100 lines) ...

 
tutorial

Step 2: Define a JPA Entity Class

Explains how to define a JPA entity class in a NetBeans Web Application.... { private static final long serialVersionUID = 1L ;   // Persistent Fields: @Id @GeneratedValue Long id ; private String name ; private Date signingDate ...

 
tutorial

Step 2: Entity Class and Persistence Unit

Explains how to define a JPA entity class and a persistence unit (persistence.xml) in a NetBeans Spring MVC web application project.... { private static final long serialVersionUID = 1L ;   // Persistent Fields: @Id @GeneratedValue Long id ; private String name ; private Date signingDate ...

 
tutorial

Step 2: Entity Class and Persistence Unit

To store objects in an ObjectDB database using JPA we need to define an entity class:... { private static final long serialVersionUID = 1L ;   // Persistent Fields: @Id @GeneratedValue Long id ; private String name ; private Date signingDate ...

 
tutorial

Step 2: Entity Class and Persistence Unit

Explains how to define a JPA entity class and a persistence unit (persistence.xml) in an Eclipse Spring MVC web application project.... { private static final long serialVersionUID = 1L ;   // Persistent Fields: @Id @GeneratedValue Long id ; private String name ; private Date signingDate ...

 
api-jpa

javax.persistence.Version

Specifies the version field or property of an entity class that serves as its optimistic lock value.(Annotation of JPA)

 
api-jdo

javax.jdo.spi.PersistenceCapable.ObjectIdFieldManager

This interface is a convenience interface that allows an instance to implement both ObjectIdFieldSupplier and ObjectIdFieldConsumer.(Interface of JDO)

 
forum_thread

Out of memory

Hi, Today in the middle of the night ODB just crashed leaving this on console screen: ... to a separate issue , since this thread became too long. Please subscribe to that new issue. Analysis of the heap reveals ... cache size? Is there any chance to add some logging for long / memory hungry queries? And lastly - now our database is small. ...

 
forum_thread

Possible cause for "Enhancement of type ... is old and cannot be used"

We get the following log: ... overflow of published source code examples by breaking long lines . You may mark in paragraph code words (e.g. class ... (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex source examples (> 100 lines) ...

 
api-jpa

javax.persistence.MapsId

Designates a ManyToOne or OneToOne relationship attribute that provides the mapping for an EmbeddedId primary key, an attribute within an EmbeddedId primary key, or a simple primary key of the parent entity.(Annotation of JPA)