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About mapped superclass

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JDO Doc
3

javax.jdo.Query

 variableDeclaration, String candidateCollectionExpression, Map parameters) Add a subquery to this query. Add a subquery to this query. The Map version of the method treats the key of each map entry as ... for either the parameter or the value of the String[], or for any map key or value, that expression is ignored
JPA Doc
3

javax.persistence.MapKey

the map key for associations of type java.util.Map when the map key is itself the primary key or a persistent field or property of the entity that is the value of the map. If a persistent field or property other than the primary key is used as a map key then it is expected to have a uniqueness constraint
Manual
2

Deleting JPA Entity Objects

objects. Orphan removal can also be set for collection and map fields. For example: @Entity class
Manual
2

Entity Management Settings

, which is not an entity class, mapped super class or embeddable class). The element
Manual
2

Index Definition

; : } Indexes in Queries ObjectDB manages a BTree for every index. A BTree is an ordered map data structure
JPA Doc
2

JPA Annotations for Classes

JPA defines three types of persistable classes which are set by the following annotations: Chapter 2 of the ObjectDB manual explains these annotations in detail. Entity and mapped super classes can be further configured by annotations that specify cache preferences and lifecycle event listener
FAQ
2

What are the main benefits of using ObjectDB?

the execution time of object oriented applications significantly. For instance, collection and map
Manual
2

SELECT clause (JPQL / Criteria API)

clause. Collection and map fields cannot be included in the results directly, but their content
JDO Doc
2

javax.jdo.PersistenceManagerFactory

getMapping() Get the Mapping setting for this factory. Get the Mapping setting for this factory. This is used to find the object-datastore mapping file(s). Returns: the Mapping setting. Since: JDO 1.0 ... setMapping(String mapping) Set the Mapping setting for this factory. Set the Mapping setting
JPA Doc
2

javax.persistence.MapKeyClass

the type of the map key for associations of type java.util.Map. The map key can be a basic type, an embeddable class, or an entity. If the map is specified using Java generics, the MapKeyClass ... ; ... @ElementCollection(targetClass=String.class) @MapKeyClass(String.class) Map images