About fetch

manual

JPA Criteria API Queries

Explains how to use the JPA Criteria API (CriteriaBuilder, CriteriaQuery, etc.) to build JPQL like queries.... join type. See JavaDoc Reference Page... , fetch fetch(attributeName) FetchParent's method Create a fetch join to ...

 
release

2.3.0

... non standard database file suffixes. Changed fetch of collection elements. Fixed an ... . Fixed a bug in applying nested eager fetch when enhancement is disabled. Fixed the "Annotated methods ... Improved Explorer performance by disabling EAGER fetch. Fixed critical bugs in using flush. Fixed ...

 
issue

JQL-Update Queries fails with activated L2-Cache

When using JQL-Update Queries it is basically not working without calling entityManager.clear() after a transaction commit. When the clear() method isn't called the entityManager will never return a container the updated Entities. Scenario 1: Disabled L2 Cache, updating elements using UPDATE-Query and fetching Entities afterwards from database. Expected result: Getting changed Entities from database - Actual result: No changes are visble. Bug Version: Priority: Critical Status: Closed Replies: 1 Type:  Bug ...

 
api-jdo

setMaxFetchDepth(fetchDepth)

Set the maximum fetch depth when fetching.(Method of javax.jdo.FetchPlan)

 
api-jpa

getReference(entityClass, primaryKey)

Get an instance, whose state may be lazily fetched.(Method of javax.persistence.EntityManager)

 
forum_thread

How to Remove records from many to many relationship tables in JPA

Hello All, I am getting the constraint violation exception whil deleting the entries I have Relation tables    TransportationEvent  and Conclusion  , relations like ... { ... @ ManyToMany ( fetch = FetchType . EAGER , cascade = CascadeType ... { .... @ ManyToMany ( fetch = FetchType . LAZY , cascade = CascadeType ...

 
issue

Navigation through lazy loading from Detached Objects

A main limitation of detached objects (as explained on the Detached Entities manual page) is: ... 1000s of dedicated projection queries  and/or fetch joins that can preempty data that will be needed in the user ... p.168 Working with Detached Entities - p.222 Fetch Joins ] We appreciate that this feature, available in ...

 
release

2.2.8

... . Fixed a bug in applying nested eager fetch when enhancement is disabled. Fixed the "Annotated methods ... Improved Explorer performance by disabling EAGER fetch. Fixed critical bugs in using flush. Fixed ...

 
issue

New entity objects are duplicated on merge cascading

When merge is cascaded to a new entity object that has not been persisted yet - it becomes persisted twice. This was demonstrated by a Java EE application in this forum thread but may be reproduced also in a simple console test case: ... ( cascade = CascadeType . ALL , fetch = FetchType . EAGER ) private ... id ;   @ OneToOne ( fetch = FetchType . LAZY , cascade = CascadeType ...

 
release

2.2.6

... Improved Explorer performance by disabling EAGER fetch. Fixed critical bugs in using flush. Fixed ... deadlock bug . Fixed a bug in using JOIN FETCH with DISTINCT. Fixed Metamodel API's getTypeId ...