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91-100 of 200 resultsRefreshMapped By Fetch is very Slow Well ! I think i pointed out a HUGE performance issue with mapped-by attribute (yeah ... "mapped-by". You obtain 1 second max of query fetch. So my performance issue ... ") // Test by adding / remove "mappedBy" public MyEntityChild getEntityChild() { return entityChild | |
Pre-detach loading: retrieval by navigation not working in if statement-loading-why-retrieval-by-navigation-and-access">https://stackoverflow.com/questions/35359676/java-jpa-objectdb-pre-detach-loading-why-retrieval-by-navigation-and-access webel Dr Darren ... that can be referenced by ID, and meets a uniform and powerful IElement interface. | |
Strange behaviour with ORDER BY and IN by its speed and overall performance I noticed a strange behaviour where an ORDER BY - directive ... > Ordering seems to be ignored if we order by a simple member (e.g. a String) being the Entity-ID ... ; System.out.println("Locations without selection criterion in descending order (by | |
ORDER BY problem, when String starts with language specific character Dear all, I have a problem with ORDER BY clause. I have a simple query: select u from User u order by u.name When the name starts ... ="code">ORDER BY clause. However, if you have to sort a large result list | |
Suspected memleak caused by bad state of EntityManager after every creating and using. We find a slow memleak in our application recently, and by trace of Entity construct and finalize, we found the problem is caused by bad state of EntityManager. After first ... , but it can be closed and retrieved by EntityManagerFactory, and the instances of Entity constructed by | |
javax.persistence.metamodel.EntityType> JPA 2.0 group-header" class="group-header"> Return the attribute declared by the managed type that corresponds to the specified name ... declared by the managed type that corresponds to the specified name. | |
javax.persistence.metamodel.MappedSuperclassType group-header" class="group-header"> Return the attribute declared by the managed type ... ="description"> Return the attribute declared by the managed type that corresponds to the specified | |
javax.persistence.metamodel.IdentifiableType> Since: JPA 2.0 group-header" class="group-header"> Return the attribute declared by the managed type that corresponds to the specified name. | |
Removed entities can be found by query in the same transaction this entity by em.remove(). Afterwards the entity can be load again by query ... . Every snapshot represents a picture of the database as seen by a particular transaction. When changes ... was that as soon as flush was called and a snapshot was generated, changes to the database by | |
javax.jdo.spi.JDOImplHelper to register metadata for persistence-capable classes and to perform common operations needed by implementations, not by end users. JDOImplHelper allows construction of instances ... . JDO implementations get access to the functions provided by this class only if they are authorized |