About settings

api-jpa

getJoins()

Return the joins that have been made from this bound type.(Method of javax.persistence.criteria.From)

 
api-jpa

getParameters()

Get the parameter objects corresponding to the declared parameters of the query.(Method of javax.persistence.Query)

 
api-jpa

getFetches()

Return the fetch joins that have been made from this type.(Method of javax.persistence.criteria.FetchParent)

 
manual

Storing JPA Entity Objects

Explains how to use JPA to store (persist) entity objects in the database. New entity objects can be stored in the database either explicitly by invoking the persist persist(entity) EntityManager's method Make an instance managed and persistent. See JavaDoc Reference Page... method or ...

 
forum_thread

Failed to commit transaction: Java heap space (error 613)

Hi, the following exception occurred in our production machine last night: 2013-07-17 20:41:46,665 pdnsrttor3rc42-WSAgent-2-Existing/16 ERROR ObjectDbMessagePipe - Failed to put a message on queue:  pdnsrttor3rc42-ReportDSGroup_Instance-2 retrying = true [ObjectDB 2.4.6_10] javax.persistence.RollbackException Failed to commit transaction: Java heap space (error 613) We are using ObjectDB 2.4.6_10, JDK 7, and a 30GB heap space. ... Query cache size Client side cache settings You may try each of these parameters to assess how ...

 
api-jpa

javax.persistence.criteria.CriteriaQuery

The CriteriaQuery interface defines functionality that is specific to top-level queries.(Interface of JPA)

 
manual

GROUP BY and HAVING clauses

Explains how to use the GROUP BY and HAVING clauses in a JPA/JPQL query. The GROUP BY clause enables grouping of query results. A JPQL query with a GROUP BY clause returns properties of generated groups instead of individual objects and fields. The position of a GROUP BY clause in the query execution order is afte ...

 
forum_thread

Find the error...JPA ENTITY HIBERNATE

Hey guys....i am searching for some days for the problem...Maybe one of you can find the error   DATABASE SHEMA: https://www.file-upload.net/download-12530779/2017-06-0214_25_00-MySQLWorkbench.png.html       Entities:   #1 2017-06-02 13:24 Hey guys.... i am searching for some days for the problem... Maybe one of you can find the e ...

 
api-jpa

getEmbeddables()

Return the metamodel embeddable types.(Method of javax.persistence.metamodel.Metamodel)

 
api-jpa

getDeclaredSingularAttributes()

Return the single-valued attributes declared by the managed type.(Method of javax.persistence.metamodel.ManagedType)