July 2010 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Created: (HHH-2007) Hibernate doesn't support optional one-to-one associations

by Andrei Iltchenko (JIRA)

Hibernate doesn't support optional one-to-one associations ---------------------------------------------------------- Key: HHH-2007 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2007 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.0.cr2 Reporter: Andrei Iltchenko Hibernate doesn't properly support optional one-to-one associations, e.g. Person (0..1) -- (0..1) Passport. The Hibernate books and reference all talk of two ways of mapping one-to-one associations: 1. using a many-to-one fk association with a unique constraint on the fk; 2. using a pk association. the trouble with both of them is that they enforce the mandatory property of an association end, which sometimes is not desirable. The first way enforces the mandatory property with the uniqueness constraint on the fk, the other by using the fact that one table's pk is its fk. I tried to see if I could adapt the 1st way of representing one-to-ones to support optional association ends. What I did was simply remove the unique and not null constrains from DDL generated (without removing it it would be impossible to have a Person record that doesn't reference a Passport record): from CREATE TABLE Person ( PassUniqueId VARCHAR (32) NOT NULL, version INTEGER NOT NULL, uniqueId VARCHAR (32) NOT NULL, name VARCHAR (40) NULL, PRIMARY KEY (uniqueId), UNIQUE(PassUniqueId), FOREIGN KEY (PassUniqueId) REFERENCES Passport (uniqueId) ); to CREATE TABLE Person ( PassUniqueId VARCHAR (32) NULL, version INTEGER NOT NULL, uniqueId VARCHAR (32) NOT NULL, name VARCHAR (40) NULL, PRIMARY KEY (uniqueId), FOREIGN KEY (PassUniqueId) REFERENCES Passport (uniqueId) ); but leave the uniqueness attribute in the mapping file: <many-to-one name="pass" class="application.business.logic.Passport" cascade="save-update,merge" unique="true" > <column name="PassUniqueId"/> </many-to-one> The resulting solution worked fine and I was able to create instances of Person not linked to a Passport. However Hibernate didn't succed in keeping the association from degrading into a many-to-one. It enabled me to create two Persons linked with the same Passport: PASSUNIQUEID | VIRSION | UNIQUEID | Name ================================================ 0d8b3919fffff | 1 | 0d5fb1dcfff | John 0d8b3919fffff | 0 | 10fd07bdfff | Sam A subsequent attempt at retrieving such Persons with Hibernate failed: org.hibernate.HibernateException: More than one row with the given identifier was found: 0d8b3919ffffffd60151e135b6da0164, for class: application.business.logic.Passport. Hibernate should be able to impose the single end property of such associations without relying on the underlying RDBMS engine and never allow them to degrade to many-to-ones. -- 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

14 years, 2 months

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[Hibernate-JIRA] Created: (HV-24) Improve the default message of InvalidStateException

by Mike Quilleash (JIRA)

Improve the default message of InvalidStateException ---------------------------------------------------- Key: HV-24 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-24 Project: Hibernate Validator Issue Type: Improvement Components: engine Affects Versions: 3.0.0.ga Environment: Any Reporter: Mike Quilleash Doing a printStackTrace on InvalidStateException does not give the actual invalid values anywhere. Would greatly improving debugging speed if this was included by default as often this indicates a programming error. Currently I have to run the code again and debug the right place to find out what the InvalidValues are. -- 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

14 years, 2 months

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[Hibernate-JIRA] Created: (HHH-4618) Support pagination: total rows ignore limit

by Dave (JIRA)

Support pagination: total rows ignore limit ------------------------------------------- Key: HHH-4618 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4618 Project: Hibernate Core Issue Type: New Feature Components: core Environment: JBoss 5.1.0GA Reporter: Dave Limit is used for pagination, but total number of rows must be known to calculate page count. Currently we have to use two queries: 1. select * from Student where age<30 limit 20; 2. select count(*) from Student where age<30; For complex query with joins/huge tables, it can be a performance issue. For Criteria API query with group by, there is no way to get row count, for example criteria.setProjection(Projection.projectionList().add(Projections.groupProperty("name")).add(Projections.sum(score))); Currently there is no way to get row count of this query using Criteria API. For MYSQL, SQL_CALC_FOUND_ROWS and FOUND_ROWS() are used to get row count ignoring limit. Pagination is used for all web application. Hibernate should support it in HQL and Criteria API. -- 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

14 years, 2 months

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[Hibernate-JIRA] Created: (HSEARCH-556) throw meaningfull error on Search static helper methods used with null argument

by Sanne Grinovero (JIRA)

throw meaningfull error on Search static helper methods used with null argument ------------------------------------------------------------------------------- Key: HSEARCH-556 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-556 Project: Hibernate Search Issue Type: Improvement Components: engine Reporter: Sanne Grinovero Priority: Trivial Fix For: 3.3.0 protect the parameters passed to Search.getFullTextEntityManager, the old createFullTextEntityManager and the jpa versions from being used with null parameter. -- 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

14 years, 3 months

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[Hibernate-JIRA] Created: (HSEARCH-449) Consider LUCENE-1575 carefully: not scoring by default?

by Sanne Grinovero (JIRA)

Consider LUCENE-1575 carefully: not scoring by default? ------------------------------------------------------- Key: HSEARCH-449 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-449 Project: Hibernate Search Issue Type: Sub-task Reporter: Sanne Grinovero -- 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

14 years, 3 months

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[Hibernate-JIRA] Created: (HSEARCH-528) MassIndexer attempts to index non-indexed subclasses of indexed types

by Sanne Grinovero (JIRA)

MassIndexer attempts to index non-indexed subclasses of indexed types --------------------------------------------------------------------- Key: HSEARCH-528 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-528 Project: Hibernate Search Issue Type: Bug Affects Versions: 3.2.0.Final, 3.2.0.CR1, 3.2.0.Beta1 Reporter: Sanne Grinovero Fix For: 3.3.0 quoting comments from HSEARCH-526: j nadler : {quote}Sanne, I have @Indexed class Parent, @Indexed class Child1 extends Parent, @Indexed class Child2 extends Parent, unindexed class Child3 extends Parent. I create an indexer fullTextEntityManager.createIndexer(Parent.class), it seems that it then fetches all Parent entities. This includes all Child3 entities but Child3 is not indexed. It seems like the MassIndexer attempts to index them anyway. Best behavior might be to ignore these (explicitly check if the concrete subtype is @Indexed, skip that record if not, possibly log a warning) or as you say it could at least throw an error that makes it clear what the developer (me) did wrong. Thanks! {quote} Emmanuel Bernard : {quote}Ah, right. Sanne, you should use the same algorithm we use in the query building process to check the list of indexed subclasses to create the list of indexes to merge.{quote} -- 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

14 years, 3 months

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[Hibernate-JIRA] Created: (HSEARCH-457) Analyzers in Lucene 3.0 don't have a default constructor

by Sanne Grinovero (JIRA)

Analyzers in Lucene 3.0 don't have a default constructor -------------------------------------------------------- Key: HSEARCH-457 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-457 Project: Hibernate Search Issue Type: Sub-task Components: analyzer Reporter: Sanne Grinovero we're going to need a factory of analyzers or something; could be nice to use "simple" names to embed support for the most common analyzers (the advanced anaylzers are probably most commonly picked from Solr). Analyzers like StopWords where needing parameters anyway to make sense. -- 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

14 years, 3 months

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[Hibernate-JIRA] Created: (HSEARCH-435) New token stream API, is there a benefit, work on our part?

by Emmanuel Bernard (JIRA)

New token stream API, is there a benefit, work on our part? ----------------------------------------------------------- Key: HSEARCH-435 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-435 Project: Hibernate Search Issue Type: Sub-task Reporter: Emmanuel Bernard -- 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

14 years, 3 months

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[Hibernate-JIRA] Created: (HSEARCH-371) Refactor DocumentBuilder and introduce abstract base class

by Hardy Ferentschik (JIRA)

Refactor DocumentBuilder and introduce abstract base class ---------------------------------------------------------- Key: HSEARCH-371 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-371 Project: Hibernate Search Issue Type: Task Components: engine Reporter: Hardy Ferentschik Assignee: Hardy Ferentschik Fix For: 3.2.0 Further improvement of the document builder. Introducing a common base class and moving some methods into there and taking care of some not so nice method overriding between the two existing DocumentBuilders will further improve the design of these classes. -- 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

14 years, 3 months

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[Hibernate-JIRA] Created: (HSEARCH-555) Properly expose as public API the SearchFactoryBuilder

by Emmanuel Bernard (JIRA)

Properly expose as public API the SearchFactoryBuilder ------------------------------------------------------ Key: HSEARCH-555 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-555 Project: Hibernate Search Issue Type: New Feature Components: engine Reporter: Emmanuel Bernard Assignee: Emmanuel Bernard Fix For: 3.3.0 Today it's under the impl package and has exposed dependencies non public classes. -- 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

14 years, 3 months

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hibernate-issues July 2010