About named queries

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JDO Doc
14

getPersistenceManagerFactory(overrides, name, resourceLoader, pmfLoader)

 overrides,   String name,   ClassLoader resourceLoader,   ClassLoader pmfLoader ) Returns a PersistenceManagerFactory configured based on the properties stored in the resource at name, or, if not found, returns a PersistenceManagerFactory with the given name or, if not found, returns a javax
JPA Doc
14

javax.persistence.EntityManager

- if not an entity Since: JPA 1.0 Query createNamedQuery(String name) Create an instance of Query for executing a named query (in the Java Persistence query language or in native SQL). Create an instance of Query for executing a named query (in the Java Persistence query language or in native SQL
Manual
13

Retrieving JPA Entity Objects

object (e.g. the name of the manager in the example above) causes the retrieval of missing content from ... object. Retrieval by Query The most flexible method for retrieving objects from the database is to use queries. The official query language of JPA is JPQL (Java Persistence Query Language). It enables
Issue
13

Named Query Exception

to create a query using a closed EntityManager. If this is the case, a better error message
Manual
13

Shared (L2) Entity Cache

. Cache of query programs. Cache of query execution results. The scope of these server side caches ... unit property:    name="my-pu">      ...             name="javax.persistence.sharedCache.mode" value="ALL"/>     
JPA Doc
13

JoinColumn.name

Annotation Element javax.persistence.JoinColumn String name (Optional) The name of the foreign key ... of the following: the name of the referencing relationship property or field of the referencing entity or embeddable class; "_"; the name of the referenced primary key column. If there is no such referencing
JPA Doc
12

getAttribute(name)

Method javax.persistence.metamodel.ManagedType Attribute getAttribute(   String name ) Return the attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns: attribute with given name Throws: IllegalArgumentException
JPA Doc
12

getCollection(name)

 name ) Return the Collection-valued attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns: CollectionAttribute of the given name Throws: IllegalArgumentException - if attribute of the given name is not present in the managed type Since: JPA 2.0
JPA Doc
12

getCollection(name, elementType)

 name,   Class elementType ) Return the Collection-valued attribute of the managed type that corresponds to the specified name and Java element type. Parameters: name - the name of the represented ... of the given name and element type Throws: IllegalArgumentException - if attribute of the given name
JPA Doc
12

getDeclaredAttribute(name)

Method javax.persistence.metamodel.ManagedType Attribute getDeclaredAttribute(   String name ) Return the attribute declared by the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns: attribute with given name Throws