About persistence unit

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javax.persistence.criteria.PluralJoin

javax.persistence.criteria Interface PluralJoin Superinterfaces: Expression, FetchParent, From, Join, Path, Selection, TupleElement Subinterfaces: CollectionJoin, ListJoin, MapJoin, SetJoin The PluralJoin interface defines functionality that is common to joins
JPA Doc
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javax.persistence.criteria.Predicate

javax.persistence.criteria Interface Predicate Superinterfaces: Expression, Selection, TupleElement Subinterfaces: In The type of a simple or compound predicate: a conjunction or disjunction of restrictions. A simple predicate is considered to be a conjunction
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javax.persistence.criteria.Root

javax.persistence.criteria Interface Root Superinterfaces: Expression, FetchParent, From, Path, Selection, TupleElement A root type in the from clause. Query roots always reference entities. Since: JPA 2.0 Learn how to use JPA criteria API's Root in Chapter 4
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javax.persistence.criteria.Selection

javax.persistence.criteria Interface Selection Superinterfaces: TupleElement Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, SetJoin, Subquery The Selection
JPA Doc
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javax.persistence.criteria.SetJoin

javax.persistence.criteria Interface SetJoin Superinterfaces: Expression, FetchParent, From, Join, Path, PluralJoin,E>, Selection, TupleElement The SetJoin interface is the type of the result of joining to a collection over an association or element
JPA Doc
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javax.persistence.criteria.Subquery

javax.persistence.criteria Interface Subquery Superinterfaces: AbstractQuery, Expression, Selection, TupleElement The Subquery interface defines functionality that is specific to subqueries. A subquery has an expression as its selection item. Since: JPA 2.0 Selection alias(String
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javax.persistence.DiscriminatorValue

javax.persistence Annotation DiscriminatorValue Target: Classes Specifies the value of the discriminator column for entities of the given type. The DiscriminatorValue annotation can only be specified on a concrete entity class. If the DiscriminatorValue annotation is not specified
JPA Doc
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javax.persistence.EntityListeners

javax.persistence Annotation EntityListeners Target: Classes Specifies the callback listener classes to be used for an entity or mapped superclass. This annotation may be applied to an entity class or mapped superclass. Since: JPA 1.0 Learn how to define and use entity listeners in Chapter 3
JPA Doc
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javax.persistence.EntityResult

javax.persistence Annotation EntityResult Target: Used to map the SELECT clause of a SQL query to an entity result. If this annotation is used, the SQL statement should select all of the columns that are mapped to the entity object. This should include foreign key columns to related entities
JPA Doc
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javax.persistence.EntityTransaction

javax.persistence Interface EntityTransaction Interface used to control transactions on resource-local entity managers. The EntityManager.getTransaction() method returns the EntityTransaction interface. Since: JPA 1.0 Learn how to use EntityTransaction in Chapter 3 of the ObjectDB/JPA manual. void