About value

manual

Query Parameters in JPA

Explains how to use parameters (named parameters and ordinal parameters) in JPA queries.... return query. setParameter setParameter(name, value) TypedQuery's method Bind an argument to a named parameter. ... the query results to Country objects whose name field value is equal to :name , which is a parameter that serves as a placeholder ...

 
api-jdo

javax.jdo.annotations.Column

Annotation for a column in the database.(Annotation of JDO)

 
issue

Explorer bug ? Objects seem to be missing from database in Class view, but are present as references

objectdb-2.2.5_08 NetbeansID6.9.1+Glassfish3.01 I suspect the following is an Explorer bug. It is marked knowingly as CRITICAL by me because it makes the ObjectDB system unusable for a real project because it appears to be either database integrity corruption, or it just looks like it, which is just as bad. I attach a running project illustrating the problem, as well as screenshots. ... INFO: RequestBean []: Created: com.greensoft.entity.value.FloatQuantity [null](TEST: number quantity) INFO: RequestBean []: Persisted: com.greensoft.entity.value.FloatQuantity [44](TEST: number quantity) INFO: RequestBean []: ...

 
api-jdo

javax.jdo.datastore.Sequence

Implementations of this interface can be used to obtain sequences.(Interface of JDO)

 
api-jdo

javax.jdo.annotations.Element

Annotation for the element of a collection/array relation.(Annotation of JDO)

 
api-jpa

DiscriminatorValue.value

(Optional) The value that indicates that the row is an entity of the annotated entity type.(Annotation Element of javax.persistence.DiscriminatorValue)

 
manual

[ODB1] Chapter 4 - JDO Metadata

Shows how to define JDO metadata for persistence capable classes.... /> <field name = "f7" null-value = "exception" /> <field name = "f8" null-value = "none" /> <field name = "f9" null-value ...

 
api-jdo

javax.jdo.Query

The Query interface allows applications to obtain persistent instances, values, and aggregate data from the data store.(Interface of JDO)

 
forum_thread

Database Inconsistency or corruption

Hi, since a week I have been trying to find a solution to a strange problem. We are using ObjectDB 2.6.8_02 im embedded mode. The problem is that data gets lost when updating an entity. 1-) Background Consider Three entities: ObjectValue, Attribute and Value. ObjectValue has a one to many relationship to Attribute and Attribute has a one to one relationship to Value. ... Consider Three entities: ObjectValue, Attribute and Value. ObjectValue has a one to many relationship to Attribute and Attribute has a one to one relationship to Value. All relationships are annoted with Cascade.ALL. That is, when ...

 
api-jpa

javax.persistence.criteria.CriteriaBuilder.Coalesce

Interface used to build coalesce expressions.(Interface of JPA)