July 2009 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Created: (HHH-2448) Generate identical column aliases among cluster

by Loïc LEFEVRE (JIRA)

Generate identical column aliases among cluster ----------------------------------------------- Key: HHH-2448 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2448 Project: Hibernate3 Type: Improvement Components: query-sql Versions: 3.2.2 Environment: Hibernate version: 3.2.2, 2.1.8 Database: Oracle 9.2.0.8 Reporter: Loïc LEFEVRE Attachments: report_1.txt, report_2.txt Among our weblogic cluster (12 instances), we can see that a query can have different column aliases. Although all seems correct, when regarding database reports like StatsPack or Spotlight we can see that because of these different aliases, the reports are wrong. Indeed, a resource consuming query can see its associated report properties (cpu usage, buffer gets, number of executions...) divided by the number of weblogic instances of our cluster (i.e. divided by 12) thus preventing us to pinpoint the queries to look at. On a 3 instances cluster, we can see this report: REPORT#1: one statement with a poor number of buffer gets/execution is reported splitted in 3, see the alias generated for column DTO.CREATION_DATE for example On a 4 instances cluster, we can see this report: REPORT#2: one statement responsible of the latch free/cache buffers chains wait events splitted in 4, note the column alias generated fordeffcashcy0_.BEST_EXPECTED_CY More than confusing the DBAs about the same query with n different "faces", our reports don't show us all the queries to look at: indeed, in our "Top 50 queries", a lot of them are duplicates! Also the memory required in the SGA to store the queries, the execution plan and so on is increased... Finally, although the column aliases can have up to 30 characters under Oracle, the limit is set to 10, why? -- 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

11 years, 10 months

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[Hibernate-JIRA] Created: (HHH-3811) Bug: No ability to escape SQL keywords in HQL queries.

by John Roberts (JIRA)

Bug: No ability to escape SQL keywords in HQL queries. ------------------------------------------------------ Key: HHH-3811 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3811 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.3.0.CR1 Environment: 3.3.0.CR1, MS SQL Server 2005 Express Reporter: John Roberts Priority: Critical There appears to be no way to escape property names that are SQL keywords in HQL queries. For example, if you have a property named "key", which is a reasonable name for a property, and you are constructing an HQL query, e.g.: session.createQuery("select from Entities where key=?"); That will fail on MS SQL Server, because "key" is a reserved T-SQL keyword. However, there is no way to make it succeed, as either an absent-minded developer appears to have forgotten to add the ability to escape keywords to HQL (oops), or it's the secret of the millennium and was left out of the documentation on purpose (it has certainly boggled the minds of the folks on FreeNode #java, #hibernate, and the hibernate forum). Note that none of the following will succeed (this is what I have tried so far): session.createQuery("select from Entities where key=?"); session.createQuery("select from Entities where [key]=?"); // <-- mssql style still fails to be parsed session.createQuery("select from Entities where `key`=?"); session.createQuery("select from Entities where 'key'=?"); session.createQuery("select from Entities where \"key\"=?"); session.createQuery("select from Entities where ''key''=?"); session.createQuery("select from Entities where {key}=?"); session.createQuery("select from Entities where <key>=?"); session.createQuery("select from Entities where (key)=?"); session.createQuery("select from Entities where $key$=?"); session.createQuery("select from Entities where $key=?"); Note that using the underlying DBMS's escape method *does* work for column names in the entity mappings, but does not work in actual HQL. Since most DBMS's have their own dialects of SQL, the inability to escape keywords in HQL means that it is generally impossible to guarantee that any given HQL query will work unless you specifically design your application around the underlying DBMS (which is precisely one of the things you were hoping to avoid with Hibernate -- although on the other hand you're already tied to the DBMS with escaped keywords in the entity mapping anyways). -- 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

11 years, 10 months

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[Hibernate-JIRA] Created: (HHH-3818) Hibernate/JBC integration doesn't property handle Entity/CollectionRegionAccessStrategy evict

by Brian Stansberry (JIRA)

Hibernate/JBC integration doesn't property handle Entity/CollectionRegionAccessStrategy evict --------------------------------------------------------------------------------------------- Key: HHH-3818 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3818 Project: Hibernate Core Issue Type: Bug Components: caching (L2) Affects Versions: 3.3.1 Reporter: Brian Stansberry Assignee: Brian Stansberry Fix For: 3.3.x EntityRegionAccessStrategy and CollectionRegionAccessStrategy have evict(Object key) and evictAll() that say they must cause removal of items from the cache "immediately without regard for transaction isolation." The Hibernate/JBC integration is not properly handling this as the JBC removeNode calls it makes are not dealing with transactional issues. The integration needs to: 1) Perhaps suspend any ongoing tx (particularly since these calls are typically made from a tx Synchronization's afterCompletion() callback, when the tx is Status.COMMITTED and it isn't appropriate to call into the cache expecting the cache to incorporate the call into the transaction. (Alhthough I believe JBC handles this correctly by ignoring the tx, since it isn't ACTIVE). 2) Deal with the fact that the tx that is being committed is likely holding locks in JBC. This is the big issue. I believe dealing with this will a) require keeping state in the Hib/JBC integration layer's Region to track that an eviction has occurred but may not be reflected in JBC b) using JBC as a notification bus to propagate the fact of the eviction to other nodes c) attempting to evict the data from JBC locally, failing promptly in the face of lock conflicts d) including in any get() or putFromLoad() calls logic to check the state from a), again attempting to evict locally (with a very short timeout) if not yet evicted and not allowing calls to proceed into JBC until successful. -- 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

11 years, 10 months

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[Hibernate-JIRA] Created: (ANN-787) @UniqueConstraint annotation not creating unique indexes

by Avinash THM (JIRA)

@UniqueConstraint annotation not creating unique indexes -------------------------------------------------------- Key: ANN-787 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-787 Project: Hibernate Annotations Issue Type: Bug Affects Versions: 3.3.1.GA Environment: hibernate-core 3.3.1GA, hibernate-annotations 3.4.0GA, DB2 version 9.1 Reporter: Avinash THM Priority: Minor Unique indexes are not being created when using @UniqueConstraint annotation. The tables are created properly with primary keys and foreign keys, but the unique indexes are not created. I have posted the issue in hibernate forum (http://forum.hibernate.org/viewtopic.php?t=991505&highlight=) but didnt get any reply. I have also seen a couple of posts for the same problem. can anybody help me out with this issue? -- 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

11 years, 11 months

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[Hibernate-JIRA] Created: (HHH-3465) HiRDB Support

by Tomoto Shimizu Washio (JIRA)

HiRDB Support ------------- Key: HHH-3465 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3465 Project: Hibernate3 Issue Type: New Feature Components: core Affects Versions: 3.2.5 Environment: 3.2.5 + HiRDB V8 + Type4 JDBC Driver Reporter: Tomoto Shimizu Washio Attachments: hirdbdialect.patch I would like to contribute with a dialect for HiRDB, Hitachi's RDBMS. (For more information, please see http://www.hitachi.co.jp/Prod/comp/soft1/global/prod/hirdb/) I added 4 classes and slightly modified 2 existing classes as shown below. Please look at the documentation at the top of the patch for explanations. org.hibernate.dialect.HiRDBDialect (added) org.hibernate.dialect.UserFuncDeclParser (added) org.hibernate.dialect.DialectFactory (modified) org.hibernate.dialect.function.AnsiTrimEmulationFunction (modified) org.hibernate.dialect.function.AnsiTrimEmulationFunctionWithTrimstrs (added) org.hibernate.dialect.function.TypeQualifiedSQLFunction (added) You may think this code is relatively large as a dialect. It is because I also implemented user-defined function support. As HiRDB requires '?' parameters to be qualified by 'as <type>' in user-defined function invocations, I made a parser for the type declarations that the user specified in the properties file, and a renderer for the type qualifier. See javadoc comments of HiRDBDialect and UserFuncDeclParser for more details. This patch is created on Hibernate 3.2.5.ga and tested on HiRDB V8 with Type4 JDBC Driver. The example configuration for HiRDB is shown below: hibernate.dialect org.hibernate.dialect.HiRDBDialect hibernate.connection.driver_class JP.co.Hitachi.soft.HiRDB.JDBC.HiRDBDriver hibernate.connection.url jdbc:hitachi:hirdb://DBID=@HIRDBENVGRP=C:/hirdb.ini hibernate.connection.username hitachi hibernate.connection.password hitachi -- 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

11 years, 11 months

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[Hibernate-JIRA] Created: (HHH-3367) Add support to OpenEdge RDMS (Progress 10) in DialectFactory

by Glaucio Scheibel (JIRA)

Add support to OpenEdge RDMS (Progress 10) in DialectFactory ------------------------------------------------------------ Key: HHH-3367 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3367 Project: Hibernate3 Issue Type: Patch Components: core Affects Versions: 3.2.6 Reporter: Glaucio Scheibel Attachments: DialectFactory.java, DialectFactory.patch This patch adds OpenEdge (formely Progress Database) support to DialectFactory 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

11 years, 11 months

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[Hibernate-JIRA] Created: (HHH-2654) Ingres dialect patch to support bit_length

by Chris Bredesen (JIRA)

Ingres dialect patch to support bit_length ------------------------------------------ Key: HHH-2654 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2654 Project: Hibernate3 Issue Type: Patch Components: core Reporter: Chris Bredesen Assignee: Steve Ebersole Priority: Minor Attachments: IngresDialect.diff This patch from Daniel fixes the Ingres dialect to support bit_length. -- 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

11 years, 11 months

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[Hibernate-JIRA] Created: (HHH-3733) Introduce an annotation to disable ad-hoc null semantic of Hibernate components

by Vladimir Kovalyuk (JIRA)

Introduce an annotation to disable ad-hoc null semantic of Hibernate components ------------------------------------------------------------------------------- Key: HHH-3733 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3733 Project: Hibernate Core Issue Type: Improvement Components: core Reporter: Vladimir Kovalyuk see http://forums.hibernate.org/viewtopic.php?t=993972 For the model @Entity public class Person { private Address name = new Address(); ... @Embedded Address getAddress() {} } @Embeddable public class Address { public String getCity() {} public String getStreet() {} } the following xhtml excerpt causes NPE constantly when editing a person which address properties hasn't been filled in yet <h:inputText value="#{person.address.city}" /> I suggest introducing an annotation @Static which could be applied to Address class and lead to disabling null ad-hoc semantic on its instances. For some environments such as user interface this may be considered as the default behavior. I suggest introducing an Hibernate configuration parameter which would switch off the semantic. I would propose to consider embeddable classes as static mixins from OO design, not as just limited entities without identity. This point of view explains that embedded instance is a part of entity so it's lifecycle is the same as the entity's lifecycle. Thus constant presence of embeddable instance (property is never null) is the default behavior. Thus configuration parameter is "must have", not the thing which is "nice to have". >From the other hand null ad-hoc semantic is like dynamic mixins. So it would be nice to have a @Dynamic annotation to force this semantic for some components. -- 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

11 years, 11 months

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[Hibernate-JIRA] Created: (HHH-2308) Adjusting the Outer Join Predicate using Criteria Query

by Ben Grant (JIRA)

Adjusting the Outer Join Predicate using Criteria Query ------------------------------------------------------- Key: HHH-2308 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2308 Project: Hibernate3 Type: New Feature Components: query-criteria Versions: 3.2.1 Environment: Linux Using MS SQLServer Reporter: Ben Grant I have two tables Table A ||Col_1||Col_2|| |London| UK | |Liverpool| UK | | New York | USA | Table B ||Col_1||Col_2|| Col_3|| | UK | Europe | 0 | USA | Americas | 1 Using the Criteria class, Restriction Class and FetchMode, Hibernate manages to create a query that looks like this select distinct top 2000 this_.Col_1 as y0_, TableB3_.Col2 as y1_ from TableA this_ left outer join TableB TableB3_ on this_.Col_2= TableB3_.Col_1 where TableB3_.Col_3=1 When really i need the query to be like this select distinct top 2000 this_.Col_1 as y0_, TableB3_.Col2 as y1_ from TableA this_ left outer join TableB TableB3_ on this_.Col_2= TableB3_.Col_1 AND TableB3_.Col_3=1 currently their isn't any know way for hibernate to adjust or apply filters within the join clause. -- 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

11 years, 11 months

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[Hibernate-JIRA] Created: (HSEARCH-383) Hibernate Search does not respect the @AccessType annotation in respect to @Id fields.

by Steven Knock (JIRA)

Hibernate Search does not respect the @AccessType annotation in respect to @Id fields. -------------------------------------------------------------------------------------- Key: HSEARCH-383 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-383 Project: Hibernate Search Issue Type: Bug Components: engine Affects Versions: 3.1.1.GA, 3.1.0.GA Environment: Hibernate 3.3.1.GA Reporter: Steven Knock Priority: Minor Attachments: TestAccessTypeProblem.java This occurs when indexing an Entity annotated as @IndexedEmbedded if the object that it is @ContainedIn is a proxy object that has not yet been loaded and if the @AccessType of the @Id of the proxy object has been overriden from field to property. This is because Hibernate Search does not respect the @AccessType annotation, and so attempts to read the id of the parent object directly from the member variable, which is not initialised in the proxy and so returns 0 in the attached test case. The problem is in: org.hibernate.search.engine.DocumentBuilderIndexedEntity.checkDocumentId(). This results in a record in the Lucene index that has no reference to the containing instance. So, while the number of results is returned correctly, any attempt to actually retrieve the results and convert them into Hibernate objects fails. -- 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

11 years, 11 months

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hibernate-issues July 2009