February 2007 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Commented: (ANN-9) Support interface inheritance mapping

by Barney Boisvert (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/ANN-9?page=comm... ] Barney Boisvert commented on ANN-9: ----------------------------------- Yes, I know. I should have says "I don't see how HA (or JPA) can ever ...". Which isn't to say HA shouldn't grow it's own extensions to JPA to support annotating interfaces. It seems like it'd be something of a priority to leverage the full Hibernate feature set through all mapping mechanisms though. > Support interface inheritance mapping > ------------------------------------- > > Key: ANN-9 > URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-9 > Project: Hibernate Annotations > Type: Improvement > Components: binder > Versions: 3.1beta3 > Reporter: Gili > Attachments: hibernate3-annotations-3.1beta5-3896-3948.diff, hibernate3-annotations-3.1beta5-3896-4138.diff > > > It should be possible to create a mapping with interfaces, as described by the documentation here: http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#inheritanc... > Specifically right now it is impossible to annotate interfaces and according to HBX-231 even if you could @Entity is only meant to get used on classes so the question becomes "what do you annotate it with?" > As I pointed out here http://forum.hibernate.org/viewtopic.php?p=2238824#2238824 the additional problem seems to be that XDoclet doesn't support interface annotation either (http://opensource.atlassian.com/projects/xdoclet/browse/XDT-1345) so I'm left without a workaround. > I can't convert the interfaces to abstract classes because I implement multiple interfaces in my application and Java does not do multiple inheritance. > If you know of a nice workaround, please let me know :) -- 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: (ANN-9) Support interface inheritance mapping

by Christian Bauer (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/ANN-9?page=comm... ] Christian Bauer commented on ANN-9: ----------------------------------- Guys, it's not even in the specification. Complain to your favorite expert group member. Hibernate has no problem with interfaces and supports them just fine either programmatically mapped or through XML. Our priority with annotations has been specification support. Now that this is done, we might have time to "give HA a future" (I love the open source drama queen acting...) > Support interface inheritance mapping > ------------------------------------- > > Key: ANN-9 > URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-9 > Project: Hibernate Annotations > Type: Improvement > Components: binder > Versions: 3.1beta3 > Reporter: Gili > Attachments: hibernate3-annotations-3.1beta5-3896-3948.diff, hibernate3-annotations-3.1beta5-3896-4138.diff > > > It should be possible to create a mapping with interfaces, as described by the documentation here: http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#inheritanc... > Specifically right now it is impossible to annotate interfaces and according to HBX-231 even if you could @Entity is only meant to get used on classes so the question becomes "what do you annotate it with?" > As I pointed out here http://forum.hibernate.org/viewtopic.php?p=2238824#2238824 the additional problem seems to be that XDoclet doesn't support interface annotation either (http://opensource.atlassian.com/projects/xdoclet/browse/XDT-1345) so I'm left without a workaround. > I can't convert the interfaces to abstract classes because I implement multiple interfaces in my application and Java does not do multiple inheritance. > If you know of a nice workaround, please let me know :) -- 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: (ANN-9) Support interface inheritance mapping

by Barney Boisvert (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/ANN-9?page=comm... ] Barney Boisvert commented on ANN-9: ----------------------------------- Pascal, I was using it with Spring. Here's a snippet of my XML (hopefully it'll come through all right): <property name="mappingResources"> <list> ... </list> </property> <property name="annotatedPackages"> <list> ... </list> </property> <property name="annotatedClasses"> <list> ... </list> </property> I'm with you, though. I don't see how HA can ever hope to be generally useful without support for mapping interfaces. > Support interface inheritance mapping > ------------------------------------- > > Key: ANN-9 > URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-9 > Project: Hibernate Annotations > Type: Improvement > Components: binder > Versions: 3.1beta3 > Reporter: Gili > Attachments: hibernate3-annotations-3.1beta5-3896-3948.diff, hibernate3-annotations-3.1beta5-3896-4138.diff > > > It should be possible to create a mapping with interfaces, as described by the documentation here: http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#inheritanc... > Specifically right now it is impossible to annotate interfaces and according to HBX-231 even if you could @Entity is only meant to get used on classes so the question becomes "what do you annotate it with?" > As I pointed out here http://forum.hibernate.org/viewtopic.php?p=2238824#2238824 the additional problem seems to be that XDoclet doesn't support interface annotation either (http://opensource.atlassian.com/projects/xdoclet/browse/XDT-1345) so I'm left without a workaround. > I can't convert the interfaces to abstract classes because I implement multiple interfaces in my application and Java does not do multiple inheritance. > If you know of a nice workaround, please let me know :) -- 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: (ANN-9) Support interface inheritance mapping

by Pascal Alberty (JIRA)

[ http://opensource.atlassian.com/projects/hibernate/browse/ANN-9?page=comm... ] Pascal Alberty commented on ANN-9: ---------------------------------- Thanks Barney for your comment ! It gives me a hope ;-) My second concern is to use this "mixed" mode with Spring. Is it your case ? If yes, could you explain how your configure your applicationContext ? And finally, as a bonus question to the Hibernate team, I don't understand why you don't plannify this implementation. For me, Hibernate Annotation implementation has no future for large application developement without it. Or maybe I'm totally wrong ... > Support interface inheritance mapping > ------------------------------------- > > Key: ANN-9 > URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-9 > Project: Hibernate Annotations > Type: Improvement > Components: binder > Versions: 3.1beta3 > Reporter: Gili > Attachments: hibernate3-annotations-3.1beta5-3896-3948.diff, hibernate3-annotations-3.1beta5-3896-4138.diff > > > It should be possible to create a mapping with interfaces, as described by the documentation here: http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#inheritanc... > Specifically right now it is impossible to annotate interfaces and according to HBX-231 even if you could @Entity is only meant to get used on classes so the question becomes "what do you annotate it with?" > As I pointed out here http://forum.hibernate.org/viewtopic.php?p=2238824#2238824 the additional problem seems to be that XDoclet doesn't support interface annotation either (http://opensource.atlassian.com/projects/xdoclet/browse/XDT-1345) so I'm left without a workaround. > I can't convert the interfaces to abstract classes because I implement multiple interfaces in my application and Java does not do multiple inheritance. > If you know of a nice workaround, please let me know :) -- 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] Created: (HBX-907) SessionFactory "state" not updated when the factory is opened via a msg prompt

by Joseph Marques (JIRA)

SessionFactory "state" not updated when the factory is opened via a msg prompt ------------------------------------------------------------------------------ Key: HBX-907 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-907 Project: Hibernate Tools Type: Bug Versions: 3.2beta8 Reporter: Joseph Marques Occassionally I forget to open the session factory after I startup Eclipse. I type a query into the editor and hit execute and it prompts me "Would you like to open the session factory?". That's a nice touch, and I of course click "yes". However, later when I right-click on some root configuration node (in the Hibernate Configurations view) it still says "Create Session Factory" when it should say "Close Session Factory". -- 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] Created: (HHH-2443) Need a way to query only for specific class types or turning off check for subclasses

by Jason (JIRA)

Need a way to query only for specific class types or turning off check for subclasses ------------------------------------------------------------------------------------- Key: HHH-2443 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2443 Project: Hibernate3 Type: Task Versions: 3.1.3 Environment: 3.1.3, oracle 10.2.0.2 Reporter: Jason I have two generic tables with the possibility of a lot of data in each. One called instance and one called association. Each has there own properties table instance_property and association_property. They each have there own mapping files which I will list below. In the code, Association extends Instance. So the problem I am having is everytime I query for Instance i.e. HQL - from instance i where type=:type. This will create two queries "select i.* from instance i where i.type=:type" and "select i.* from association i where i.type=:type". Since Instance, Association, InstanceProperty, and AssociationProperty have there own mapping files and they both have there own tables (therefore no discriminators), how can I only have it query on Instance? And querying on Association is fine since it does not have subclasses and it only executes one query. Am I missing something, or is this just not possible at this time? In summary, I am requesting a way for HQL to only query on the instance class I specify without checking the subclasses.  <class name="Instance" table="instance"> <cache usage="read-write" /> <id name="id" column="id" type="java.lang.Long"> <generator class="assigned" /> </id> <version name="version" column="version" type="long" /> <map name="propertiez" table="instance_to_property"> <cache usage="read-write" /> <key column="instance_id" /> <index column="name" type="string" /> <many-to-many class="InstanceProperty" column="instance_property_id" fetch="join" /> </map> </class> <class name="InstanceProperty" table="instance_property"> <cache usage="read-write" /> <id name="id" column="id" type="long"> <generator class="native" /> </id> <version name="version" column="version" type="long" /> <property name="name" column="name" type="string" not-null="true" /> <property name="key" column="is_key" type="boolean" not-null="true" /> <property name="value" column name="value" type="string"/> </property> </class>  <class name="Association" table="association"> <cache usage="read-write" /> <id name="id" column="id" type="java.lang.Long"> <generator class="assigned" /> </id> <version name="version" column="version" type="long" /> <map name="propertiez" table="association_to_property"> <cache usage="read-write" /> <key column="association_id" /> <index column="name" type="string" /> <many-to-many class="AssociationProperty" column="association_property_id" fetch="join" /> </map> <property name="referenceId1" column="referenceId1" type="java.lang.Long" /> <property name="referenceId2" column="referenceId2" type="java.lang.Long" /> </class> <class name="AssociationProperty" table="association_property"> <cache usage="read-write" /> <id name="id" column="id" type="long"> <generator class="native" /> </id> <version name="version" column="version" type="long" /> <property name="name" column="name" type="string" not-null="true" /> <property name="key" column="is_key" type="boolean" not-null="true" /> <property name="value" column name="value" type="string"/> </property> </class> -- 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] Created: (HBX-904) Refreshing the session factory doesn't refresh everything

by Joseph Marques (JIRA)

Refreshing the session factory doesn't refresh everything --------------------------------------------------------- Key: HBX-904 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-904 Project: Hibernate Tools Type: Bug Versions: 3.2beta8 Reporter: Joseph Marques i was writting a query that used composite objects, such as: select new Thing(elt1, elt2) from ..... I changed the constructor arguments for Thing.java and saved them. Then I right-clicked on the session factory and pressed 'refresh'. I updated my query to pass the new argument, but it reported: "org.hibernate.hql.ast.QuerySyntaxException: Unable to locate appropriate constructor on class [some.long.package.name.Thing] [<the query I was trying to execute>] Then I tried right-clicking the configuration itself and selecting 'refresh' at this higher level...but I still got the same error. Then I tried closing and re-opening the session factory (again, rlght-click context menu on the configuration). This time it worked. So I guess I'm just wondering why refresh doesn't refresh the class definitions too. -- 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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Why sometimes the Transaction is required for Query, sometimes not ?

by Miroslav Nachev

Why sometimes the transaction is required for query, sometimes the transaction is not required? Where and what is the logic for that? In my opinion the transaction is not required for any query, but today I use Oracle 10g where was impossible to make Query without transaction: public static List<Order> getOrders() { Session session = getSessionFactory().getCurrentSession(); Transaction transaction = session.beginTransaction(); try { List<Order> orders = (List<Order>)session.createQuery("from Order").list(); transaction.commit(); transaction.begin(); return orders; } catch(Throwable ex) { transaction.rollback(); session.close(); ex.printStackTrace(); throw new RuntimeException(ex); } } I am looking in other projects which use MySQL and Derby where the transaction is not required for query. Now I am trying to make the same situation for Derby but the query is processing fine without transaction. Can somebody tell me where is the true and is it possible to configure Hibernate when use Oracle to make Query without using transactions? Thank you in advance. Regards, Miro

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[Hibernate-JIRA] Created: (ANN-563) DefaultComponentSafeNamingStrategy generates too long column ids

by Ilya Kuleshov (JIRA)

DefaultComponentSafeNamingStrategy generates too long column ids ---------------------------------------------------------------- Key: ANN-563 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-563 Project: Hibernate Annotations Type: Bug Versions: 3.2.0.ga Environment: Hibernate-Version: 3.2.1.ga Hibernate Annotations Version: 3.2.0.GA Oracle 10.1.0 Reporter: Ilya Kuleshov Column ids are really long indeed! Embedded entities names are being concatenated without limit. I have a Person entity with an embedded personalData property. PersonalData has an embedded homeAddress property. Finally, HomeAddress has a zipcode property. Use of DefaultComponentSafeNamingStrategy results to the column named personaldata_homeaddress_zipcode and "ORA-00972: identifier is too long" error. It should be reasonable to expect hibernate to trim the column name automatically for me. -- 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] Created: (HBX-901) Automatic / Live addition of query parameters

by Joseph Marques (JIRA)

Automatic / Live addition of query parameters --------------------------------------------- Key: HBX-901 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-901 Project: Hibernate Tools Type: New Feature Versions: 3.2beta8 Reporter: Joseph Marques Attachments: MultiQueryHQLEditor.png Instead of the user having to click on the ":p-with-a-plus-sign" icon in the upper right-hand corner of the Query Parameters view, it would be incredibly useful and significantly impressive if the list could be generated auto-matically, on-the-fly, as I'm constructing the query in the editor. In the multi-query HQL editor (see HBX-896), assuming the Query Parameters are somehow grouped or separated (see my comment from Feb 23, 2007 in HBX-897), each block would be individually but still dynamically (on-the-fly) generated / controlled by the current query being worked on in the editor - see attachment. -- 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-issues February 2007