About persistence unit

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JPA Doc
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javax.persistence.NamedQuery

javax.persistence Annotation NamedQuery Target: Classes Specifies a static, named query in the Java Persistence query language. Query names are scoped to the persistence unit. The NamedQuery ... of a named query in the Java Persistence query language: @NamedQuery( name
JPA Doc
26

javax.persistence.metamodel.Metamodel

javax.persistence.metamodel Interface Metamodel Provides access to the metamodel of persistent entities in the persistence unit. Since: JPA 2.0 EmbeddableType embeddable(Class cls) Return the metamodel embeddable type representing the embeddable class. Return the metamodel embeddable type
JPA Doc
26

javax.persistence.TableGenerator

javax.persistence Annotation TableGenerator Target: Classes and fields (including property ... on the primary key field or property. The scope of the generator name is global to the persistence unit (across all generator types). Example 1: @Entity public class Employee
JPA Doc
26

javax.persistence.NamedQueries

javax.persistence Annotation NamedQueries Target: Classes Specifies multiple named Java Persistence query language queries. Query names are scoped to the persistence unit. The NamedQueries annotation can be applied to an entity or mapped superclass. Since: JPA 1.0 See Also: NamedQuery Learn
Manual
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JPA Named Queries

class. But since the scope of named queries is the entire persistence unit, names should be selected ... the listing of managed classes in a persistence unit definition is to support named queries. Notice ... must be available. ObjectDB makes the definition of a persistence unit optional. Named queries are automatically
JPA Doc
26

javax.persistence.SequenceGenerator

to the persistence unit (across all generator types). Example: @SequenceGenerator(name="EMP_SEQ ... javax.persistence Annotation SequenceGenerator Target: Classes and fields (including property get methods) Defines a primary key generator that may be referenced by name when a generator element
JPA Doc
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javax.persistence.NamedNativeQuery

javax.persistence Annotation NamedNativeQuery Target: Classes Specifies a named native SQL query. Query names are scoped to the persistence unit. The NamedNativeQuery annotation can be applied to an entity or mapped superclass. Since: JPA 1.0 QueryHint[] hints Query properties and hints. Query
JPA Doc
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javax.persistence.NamedNativeQueries

javax.persistence Annotation NamedNativeQueries Target: Classes Used to specify multiple native SQL named queries. Query names are scoped to the persistence unit. The NamedNativeQueries annotation can be applied to an entity or mapped superclass. Since: JPA 1.0 See Also: NamedNativeQuery
Result
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Company

persistence solution for Java, based on the Java Persistence API (JPA) and the Java Data Objects (JDO ... Ltd United Kingdom Unit 632 109 Vernon House Friar Lane Nottingham NG1 6DQ United Kingdom +44 (0) 330
Manual
24

JPA Metamodel API

(); If managed classes are not listed in the persistence unit (which is optional when using ObjectDB ... can also be used with types that are still unknown to ObjectDB (not listed in the persistence unit ... The JPA Metamodel API provides the ability to examine the persistent object model and retrieve