November 2006 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Commented: (HHH-1829) Allow join on any property using property-ref

by Andrew Seales (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1829?page=c... ] Andrew Seales commented on HHH-1829: ------------------------------------ Maarten, Thanks for doing the unit tests, that saves me a job I was planning on doing today or tomorrow :) I'll test them with my patch and see what the results are. Andrew > Allow join on any property using property-ref > --------------------------------------------- > > Key: HHH-1829 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1829 > Project: Hibernate3 > Type: New Feature > Components: core > Versions: 3.2.0 cr1, 3.2.0.cr2 > Reporter: Maarten Winkels > Assignee: Steve Ebersole > Fix For: 3.2.2 > Attachments: AbstractJoinTest.java, JoinNoPropertyRefTest.java, JoinPropertyRefTest.java, Person.hbm.xml, Person.java, PersonNoPropertyRef.hbm.xml, hhh-1829.patch > > > Currently joining tables for one class (uing the <join...> tag) is only supported for the id property. The property-ref is allowed on the <key..> tag inside the <join..> tag, but this is ignored. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Moved: (HHH-2266) Incorrect SQL emitted for EJB query involving COUNT()

by Emmanuel Bernard (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2266?page=all ] Emmanuel Bernard moved EJB-251 to HHH-2266: ------------------------------------------- Project: Hibernate3 (was: Hibernate Entity Manager) Key: HHH-2266 (was: EJB-251) Component: core (was: EntityManager) Version: 3.2.0.ga (was: 3.2.0.ga) > Incorrect SQL emitted for EJB query involving COUNT() > ----------------------------------------------------- > > Key: HHH-2266 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2266 > Project: Hibernate3 > Type: Bug > Components: core > Versions: 3.2.0.ga > Environment: Hibernate 3.2 / MySQL 4.1.xx > Reporter: Manuel Mall > > > If you have an entity with a composite id and query it like: > select count(e) from Entity e > the emitted SQL looks like > SELECT COUNT(e.id1, e.id2) FROM Entity > However, this is at least according to MySQL invalid SQL as the COUNT function can have only one argument. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Updated: (HHH-1829) Allow join on any property using property-ref

by Maarten Winkels (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1829?page=all ] Maarten Winkels updated HHH-1829: --------------------------------- Attachment: AbstractJoinTest.java JoinNoPropertyRefTest.java JoinPropertyRefTest.java These are a few unittest that I coded before attempting to solve the problem (exactly the style that you proposed). I never came too solving the problem completely, especially the foreign key property was not generated correctly and the batch updates didn't work. I didn't check the testcases against the patch, but I do think they show very basic cases where the functionality is needed. > Allow join on any property using property-ref > --------------------------------------------- > > Key: HHH-1829 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1829 > Project: Hibernate3 > Type: New Feature > Components: core > Versions: 3.2.0 cr1, 3.2.0.cr2 > Reporter: Maarten Winkels > Assignee: Steve Ebersole > Fix For: 3.2.2 > Attachments: AbstractJoinTest.java, JoinNoPropertyRefTest.java, JoinPropertyRefTest.java, Person.hbm.xml, Person.java, PersonNoPropertyRef.hbm.xml, hhh-1829.patch > > > Currently joining tables for one class (uing the <join...> tag) is only supported for the id property. The property-ref is allowed on the <key..> tag inside the <join..> tag, but this is ignored. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Updated: (HHH-1829) Allow join on any property using property-ref

by Maarten Winkels (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1829?page=all ] Maarten Winkels updated HHH-1829: --------------------------------- Attachment: Person.hbm.xml PersonNoPropertyRef.hbm.xml Person.java > Allow join on any property using property-ref > --------------------------------------------- > > Key: HHH-1829 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1829 > Project: Hibernate3 > Type: New Feature > Components: core > Versions: 3.2.0 cr1, 3.2.0.cr2 > Reporter: Maarten Winkels > Assignee: Steve Ebersole > Fix For: 3.2.2 > Attachments: Person.hbm.xml, Person.java, PersonNoPropertyRef.hbm.xml, hhh-1829.patch > > > Currently joining tables for one class (uing the <join...> tag) is only supported for the id property. The property-ref is allowed on the <key..> tag inside the <join..> tag, but this is ignored. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Commented: (HHH-1) Optimize Hibernate for the bulk insertion of related entities

by Martin Ross (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1?page=comm... ] Martin Ross commented on HHH-1: ------------------------------- 1) seems to hold in case Class Parent { int pk; } Class Child { int pk; Parent parent; } Class Toy { int pk; Child owner; } >From traversing only immediate associations it is easy to see that Parent.compareTo(Child)==-1 ==> Child.compareTo(Parent) ==1 Toy.compareTo(Child)==1 ==> Child.compareTo(Toy) ==-1 If Parent.compareTo(Child)==-1 and Child.compareTo(Toy)==-1 then we must make sure that Parent.compareTo(Toy)==-1. It appears the only way to determine if Parent.compareTo(Toy)==-1 is true is to traverse the graph! > Optimize Hibernate for the bulk insertion of related entities > ------------------------------------------------------------- > > Key: HHH-1 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1 > Project: Hibernate3 > Type: New Feature > Components: core > Environment: Hibernate 1.2, MySql 3.1 > Reporter: Bradley Leupen > Priority: Minor > > > It is currently difficult to batch the creation of persistent entities that maintain associations with other entities. > Add necessary api to hibernate to support the save or update of a collection of entities. An optimization can be applied in this scenario to group inserts / updates by entity class, or table. This will enable the hibernate engine to utilize batching if available, drastically improving performance over a network. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Commented: (HHH-1) Optimize Hibernate for the bulk insertion of related entities

by Martin Ross (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1?page=comm... ] Martin Ross commented on HHH-1: ------------------------------- <sigh> Just kidding.. 2) should read "But communtivity requires Parent.compareTo(Child)== -1*Child.compareTo(Parent) > Optimize Hibernate for the bulk insertion of related entities > ------------------------------------------------------------- > > Key: HHH-1 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1 > Project: Hibernate3 > Type: New Feature > Components: core > Environment: Hibernate 1.2, MySql 3.1 > Reporter: Bradley Leupen > Priority: Minor > > > It is currently difficult to batch the creation of persistent entities that maintain associations with other entities. > Add necessary api to hibernate to support the save or update of a collection of entities. An optimization can be applied in this scenario to group inserts / updates by entity class, or table. This will enable the hibernate engine to utilize batching if available, drastically improving performance over a network. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Commented: (HHH-1) Optimize Hibernate for the bulk insertion of related entities

by Martin Ross (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1?page=comm... ] Martin Ross commented on HHH-1: ------------------------------- 2) should read "But commutivity requires Parent.compareTo(Child)==Child.compareTo(Parent) > Optimize Hibernate for the bulk insertion of related entities > ------------------------------------------------------------- > > Key: HHH-1 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1 > Project: Hibernate3 > Type: New Feature > Components: core > Environment: Hibernate 1.2, MySql 3.1 > Reporter: Bradley Leupen > Priority: Minor > > > It is currently difficult to batch the creation of persistent entities that maintain associations with other entities. > Add necessary api to hibernate to support the save or update of a collection of entities. An optimization can be applied in this scenario to group inserts / updates by entity class, or table. This will enable the hibernate engine to utilize batching if available, drastically improving performance over a network. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Commented: (HHH-1) Optimize Hibernate for the bulk insertion of related entities

by Martin Ross (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1?page=comm... ] Martin Ross commented on HHH-1: ------------------------------- 3) seems to hold in case Class Parent { int pk; Set children; } Class Child { int pk; Parent parent; } Assume Parent.children mapping is defined with inverse == true. Also assume that we extend Michael's code to examine collections instead of just merely testing with == operator. We want Parent.compareTo(Child)==1, not -1 which is what simply testing in the relationship exists will return. > Optimize Hibernate for the bulk insertion of related entities > ------------------------------------------------------------- > > Key: HHH-1 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1 > Project: Hibernate3 > Type: New Feature > Components: core > Environment: Hibernate 1.2, MySql 3.1 > Reporter: Bradley Leupen > Priority: Minor > > > It is currently difficult to batch the creation of persistent entities that maintain associations with other entities. > Add necessary api to hibernate to support the save or update of a collection of entities. An optimization can be applied in this scenario to group inserts / updates by entity class, or table. This will enable the hibernate engine to utilize batching if available, drastically improving performance over a network. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

19 years, 1 month

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[Hibernate-JIRA] Commented: (HHH-1) Optimize Hibernate for the bulk insertion of related entities

by Martin Ross (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1?page=comm... ] Martin Ross commented on HHH-1: ------------------------------- 2) seems to hold because assume case where: Class Parent { int pk; } Class Child { int pk; Parent parent; } If we do not check from both sides then (make assumption that compareTo is actually implemented in the persisted class rather than entityaction class) Parent.compareTo(Child)==0 but Child.compareTo(Parent)==1 But transitivity requires Parent.compareTo(Child)==Child.compareTo(Parent) > Optimize Hibernate for the bulk insertion of related entities > ------------------------------------------------------------- > > Key: HHH-1 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1 > Project: Hibernate3 > Type: New Feature > Components: core > Environment: Hibernate 1.2, MySql 3.1 > Reporter: Bradley Leupen > Priority: Minor > > > It is currently difficult to batch the creation of persistent entities that maintain associations with other entities. > Add necessary api to hibernate to support the save or update of a collection of entities. An optimization can be applied in this scenario to group inserts / updates by entity class, or table. This will enable the hibernate engine to utilize batching if available, drastically improving performance over a network. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

19 years, 1 month

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[Hibernate-JIRA] Commented: (HBX-671) @NamedQuery/@NamedQueries HQL validation

by Max Rydahl Andersen (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/HBX-671?page=co... ] Max Rydahl Andersen commented on HBX-671: ----------------------------------------- this does not require jdk 5 nor annotation processing anymore. just enable hibernate support for a project (and have the sessionfactory open) > @NamedQuery/@NamedQueries HQL validation > ---------------------------------------- > > Key: HBX-671 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-671 > Project: Hibernate Tools > Type: New Feature > Components: eclipse > Versions: 3.1.beta5 > Reporter: Max Rydahl Andersen > Fix For: 3.2beta6 > > -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

19 years, 1 month

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hibernate-issues November 2006