[Hibernate-JIRA] Created: (HHH-2666) subselect fetching ignores max results
by James Roper (JIRA)
subselect fetching ignores max results
--------------------------------------
Key: HHH-2666
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2666
Project: Hibernate3
Issue Type: Improvement
Components: query-hql, query-sql
Affects Versions: 3.2.1
Environment: Hibernate 3.2.1
HSQLDB 8.0
Reporter: James Roper
Priority: Minor
When maxResults is set for a query, the hibernate subselect fetching strategy ignores it. For example, I have a class entry, that has a list of comments, which are configured to use the subselect fetching strategy. You can see that in the original query, only the top ? results are fetched:
select
top ? entry0_.id as id0_,
entry0_.title as title0_,
entry0_.entry as entry0_,
entry0_.time as time0_,
entry0_.category_id as category5_0_
from
Entry entry0_
order by
entry0_.time desc
But then when it does the sub select query to lazily load the comments, this is the query it runs:
select
comments0_.entry_id as entry5_1_,
comments0_.id as id1_,
comments0_.id as id1_0_,
comments0_.time as time1_0_,
comments0_.comment as comment1_0_,
comments0_.author as author1_0_
from
Comment comments0_
where
comments0_.entry_id in (
select
entry0_.id
from
Entry entry0_
)
order by
comments0_.time desc
So, it loads every single comment in the database, even though only the comments for the top ? entries are needed. Of course, if there was no order by clause on the first query, the sub select may not return the same results, so it should probably only do this when there is an order by clause in the first query, and it should make sure it includes the order by clause in the sub select.
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13 years, 2 months
[Hibernate-JIRA] Created: (ANN-609) Need a way to specify "unsaved-value" strategy using annotations
by Suji Suresh (JIRA)
Need a way to specify "unsaved-value" strategy using annotations
----------------------------------------------------------------
Key: ANN-609
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-609
Project: Hibernate Annotations
Issue Type: Bug
Environment: Hibernate 3.2.2, Hibernate-annotations 3.2.1
Reporter: Suji Suresh
Hibernate has two ways of specifying a value for primary key:
1. Assign a value before handing it over to Hibernate
2. Have Hibernate generate the value before persisting
In my project I have objects of both of the above specified types. In other words I assign value for the primary key for some the objects (lets call these objects "assigned") and for others I have Hibernate generate the value before persisting (lets call these objects "generated"). Since Hibernate annotations does not support "unsaved-value", I do not have a way of specifying "unsaved-value" strategy. While my "generated" objects work perfectly with Hibernate's default "unsaved-value" strategy, I see wrong (but expected) behaviour when I try to persist an "assigned" object that is already present in the database in that, I get StaleStateException instead of DataIntegrityViolationException
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13 years, 2 months
[Hibernate-JIRA] Created: (HHH-3500) Hibernate fails to resolve the correct orderby column in SQL when using inheritance hierarchy
by Joonas Koivunen (JIRA)
Hibernate fails to resolve the correct orderby column in SQL when using inheritance hierarchy
---------------------------------------------------------------------------------------------
Key: HHH-3500
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3500
Project: Hibernate Core
Issue Type: Bug
Affects Versions: 3.3.0.GA
Environment: Derby 10.4.2.0 (http://db.apache.org)
Reporter: Joonas Koivunen
I have an inheritance hierarchy:
@Entity("abstractBaseClass")
AbstractBaseClass
- ConcreteClass1
- ConcreteClass2
- ConcreteClass3
AbstractBaseClass has:
- @Id long id;
- String name;
@Entity("concreteClass1") ConcreteClass1 has a @OneToMany(mappedBy="concreteClass1") List<ConcreteClass2>
@Entity("concreteClass2") ConcreteClass2 has a @OneToMany(mappedBy="concreteClass2") List<ConcreteClass3> and a reference to @ManyToOne ConcreteClass1.
@Entity("concreteClass3") ConcreteClass3 has a reference to @ManyToOne ConcreteClass2.
After adding a @OrderBy("name") annotation to the getter "List<ConcreteClass3> ConcreteClass2.getConcreteClass3s()" and afterwards accessing the association through an ConcreteClass2 instance I get:
SELECT
cc3_concrete.cc2_id,
cc3_concrete.id,
cc3_base.name,
cc3_concrete.cc2_id AS cc2_id_2
FROM
cc3 cc3_concrete
INNER JOIN
abstractBaseClass cc3_base ON cc3_concrete.id = cc3_base.id
WHERE
cc3_concrete.cc2_id = ?
ORDER BY
abstractBaseClass.name asc
(I edited hibernate's naming of entities in SQL to be a bit more clearer).
Ordering by "abstractBaseClass.name" causes the problem here; it's obvious that it should had been "cc3_base.name" but for some reason hib just uses the entityname.column_name in the SQL.
Another strange thing is that the foreign key column "cc2_id" is being included twice in the results? It is included in the select wheter or not @OrderBy exists.
Inheritance strategy used is javax.persistence.InheritanceType.JOINED.
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13 years, 3 months
[Hibernate-JIRA] Created: (HHH-3300) HQL looks for property in wrong class and reports "could not resolve property"
by Cristian Bogdan (JIRA)
HQL looks for property in wrong class and reports "could not resolve property"
------------------------------------------------------------------------------
Key: HHH-3300
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3300
Project: Hibernate3
Issue Type: Bug
Components: query-hql
Affects Versions: 3.2.6
Environment: Hibernate 3.2.6.ga, mysql 5.0.37
Reporter: Cristian Bogdan
could not resolve property: groupMembers of: projman.Project
[SELECT it.project.color AS col1 FROM projman.Deficienta def JOIN def.item it WHERE exists (FROM it.project.participants grp JOIN grp.groupMembers p WHERE p=:principal )
)) ORDER BY it.end]
the problem is, groupMembers is not a property of projman.Project, but a bag in projman,Principal.
as soon as I replace the it.project.color projection with e.g. it.start (i.e. i don't make any other join with projman.Project), the query works.
the original query is actually more complicated but i reduced my test to the above for simplicity. rewriting the query without subqueries is not an option.
i paste the relevant (generated) mappings.
<hibernate-mapping auto-import="false">
<class name="projman.Project" table="projman_Project_">
<id name="primaryKey" column="Project_">
<generator class="identity"/>
</id>
<property name="TS_modify" column="TS_modify_"/>
<property name="TS_create" column="TS_create_"/>
<property name="name">
<column name="name_" length="255"/>
</property>
<bag name="participants" table="projman_Project__participants_" cascade="all" inverse="false">
<key column="Project_"/>
<many-to-many class="projman.Principal" column="Principal_"/>
</bag>
<many-to-one name="beneficiar" column="beneficiar_" cascade="all" class="projman.Company"/>
<many-to-one name="generalDesigner" column="generalDesigner_" cascade="all" class="projman.Compa
ny"/>
<bag name="signExecution" table="projman_Project__signExecution_" cascade="all" inverse="false">
<key column="Project_"/>
<many-to-many class="projman.Company" column="Company_"/>
</bag>
<property name="color">
<column name="color_" length="6"/>
</property>
</class>
</hibernate-mapping>
<hibernate-mapping auto-import="false">
<class name="projman.Principal" table="projman_Principal_">
<id name="primaryKey" column="Principal_">
<generator class="identity"/>
</id>
<property name="TS_modify" column="TS_modify_"/>
<property name="TS_create" column="TS_create_"/>
<property name="kind" column="kind_"/>
<bag name="groupMembers" table="projman_Principal__groupMembers_" cascade="all" inverse="false">
<key column="Principal_"/>
<many-to-many class="projman.Principal" column="Principal__"/>
</bag>
<property name="displayName">
<column name="displayName_" length="255"/>
</property>
</class>
</hibernate-mapping>
<hibernate-mapping auto-import="false">
<class name="projman.Deficienta" table="projman_Deficienta_">
<id name="primaryKey" column="Deficienta_">
<generator class="identity"/>
</id>
<property name="TS_modify" column="TS_modify_"/>
<property name="TS_create" column="TS_create_"/>
<many-to-one name="item" column="item_" cascade="all" class="projman.Item"/>
<many-to-one name="firma" column="firma_" cascade="all" class="projman.Company"/>
<bag name="alteFirme" table="projman_Deficienta__alteFirme_" cascade="all" inverse="false">
<key column="Deficienta_"/>
<many-to-many class="projman.Company" column="Company_"/>
</bag>
<property name="amenda" column="amenda_"/>
</class>
</hibernate-mapping>
<hibernate-mapping auto-import="false">
<class name="projman.Item" table="projman_Item_">
<id name="primaryKey" column="Item_">
<generator class="identity"/>
</id>
<property name="TS_modify" column="TS_modify_"/>
<property name="TS_create" column="TS_create_"/>
<many-to-one name="project" column="project_" cascade="all" class="projman.Project"/>
<property name="type" column="type_"/>
<bag name="toWhom" table="projman_Item__toWhom_" cascade="all" inverse="false">
<key column="Item_"/>
<many-to-many class="projman.Principal" column="Principal_"/>
</bag>
<property name="subject">
<column name="subject_" length="255"/>
</property>
<property name="description" type="org.makumba.db.hibernate.TextUserType">
<column name="description_" sql-type="longtext"/>
</property>
<many-to-one name="creator" column="creator_" cascade="all" class="projman.Principal"/>
<property name="creationDate" column="creationDate_"/>
<property name="start" column="start_"/>
<property name="end" column="end_"/>
<bag name="events" inverse="true" cascade="none">
<key column="Item_"/>
<one-to-many class="projman.Item__events"/>
</bag>
<bag name="attachments" table="projman_Item__attachments_" cascade="all" inverse="false">
<key column="Item_"/>
<many-to-many class="projman.Document" column="Document_"/>
</bag>
</class>
</hibernate-mapping>
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13 years, 3 months
[Hibernate-JIRA] Created: (EJB-363) @OrderBy applied to collection property of derived class does not work properly when column used for ordering belongs to base class (using MySQL 5)
by Rich Eggert (JIRA)
@OrderBy applied to collection property of derived class does not work properly when column used for ordering belongs to base class (using MySQL 5)
---------------------------------------------------------------------------------------------------------------------------------------------------
Key: EJB-363
URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-363
Project: Hibernate Entity Manager
Issue Type: Bug
Components: EntityManager
Affects Versions: 3.3.2.GA
Environment: MySQL 5.0.18, Hibernate Core 3.2.6, Hibernate EntityManager 3.3.2, and the MySQL5InnoDBDialect.
Test run with Tomcat 6.0.16 (Sun JDK 1.6.0_06) and Spring Framework 2.5.3.
Relying on Hibernate automatic DDL generation (hibernate.hbm2ddl.auto=update), which appears to be working properly.
Reporter: Rich Eggert
Attachments: SampleBase.java, SampleDerived.java, SampleServiceImpl.java
I applied the (JPA) @OrderBy annotation to a collection of entities belonging to an entity class (named SampleDerived in the attached sample code) of the same type (i.e., the class has a one-to-many parent-child relationship to itself). The property name passed as the argument to the @OrderBy annotation refers to a property of the base class (named SampleBase in the example), which employs the "JOINED" inheritence strategy.
When I attempted to access the collection of a persisted instance of the entity class (in the example, this is accomplished by calling SampleServiceImpl.createSample() followed by calling SampleServiceImpl.findChildren() against the return value), the following (root cause) exception is generated:
com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column 'SampleBase.timestamp' in 'order clause'
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2870)
com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1573)
com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
com.mysql.jdbc.Connection.execSQL(Connection.java:3176)
com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1153)
com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1266)
org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186)
org.hibernate.loader.Loader.getResultSet(Loader.java:1787)
org.hibernate.loader.Loader.doQuery(Loader.java:674)
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
org.hibernate.loader.Loader.loadCollection(Loader.java:1994)
org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:565)
org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:63)
org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1716)
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:249)
org.frecklepuppy.bb.service.impl.SampleServiceImpl.findChildren(SampleServiceImpl.java:52)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
$Proxy209.findChildren(Unknown Source)
org.frecklepuppy.bb.ui.controllers.IndexController.listForums(IndexController.java:66)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:413)
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:134)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:310)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:297)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:523)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:453)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:359)
org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:109)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:172)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:268)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:87)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:68)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.securechannel.ChannelProcessingFilter.doFilterHttp(ChannelProcessingFilter.java:116)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:174)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:183)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
I verified (using MySQL Administrator) that the SampleBase.timestamp column does, in fact, exist. According to the org.hibernate.SQL log, the offending SQL statement looks like this:
select children0_.parent_id as parent2_1_, children0_.id as id1_, children0_.id as id5_0_, children0_1_.timestamp as timestamp5_0_, children0_.parent_id as parent2_6_0_ from SampleDerived children0_ inner join SampleBase children0_1_ on children0_.id=children0_1_.id where children0_.parent_id=? order by SampleBase.timestamp asc
I believe the problem is that MySQL 5 requires that the alias for the base class table used in the FROM clause (children0_1_ in this case) be used in the ORDER BY clause, instead of the actual name of the base class table. After browsing various MySQL discussions, it appears this is new to MySQL 5 (versus 4 or earlier) and was done in order to be more standards compliant.
It's unclear to me whether this affects Hibernate Core or is limited to EntityManager. I'll try to narrow down the problem further as time permits (which it isn't likely to do any time soon).
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13 years, 3 months
[Hibernate-JIRA] Created: (HHH-2828) criteria search by class throws org.hibernate.QueryException: Unsupported discriminator type null when mapping exists for this class
by jo desmet (JIRA)
criteria search by class throws org.hibernate.QueryException: Unsupported discriminator type null when mapping exists for this class
-------------------------------------------------------------------------------------------------------------------------------------
Key: HHH-2828
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2828
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.5
Environment: hibernate 3.2.5, oracle 10g
Reporter: jo desmet
Attachments: src.zip
when making a criteria based on a property of type class the query succeeds if this class is not mapped, the query building fails when this class is mapped within hibernate and has no discriminator
e.g. code :
Criteria l = session.createCriteria(SearchClass.class);
l.add(Restrictions.eq("type", ClassWithNoMapping.class)); // SUCCESS
java.util.List result = l.list();
l = session.createCriteria(SearchClass.class);
l.add(Restrictions.eq("type", ClassWithMapping.class)); // EXCEPTION
result = l.list();
exception is
Hibernate: select this_.ID as ID0_0_, this_.name as name0_0_, this_.type as type0_0_ from SEARCHCLASS this_ where this_.type=?
org.hibernate.QueryException: Unsupported discriminator type null
at org.hibernate.loader.criteria.CriteriaQueryTranslator.getTypedValue(CriteriaQueryTranslator.java:499)
at org.hibernate.criterion.SimpleExpression.getTypedValues(SimpleExpression.java:71)
at org.hibernate.loader.criteria.CriteriaQueryTranslator.getQueryParameters(CriteriaQueryTranslator.java:251)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:95)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1569)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283)
at Test.list(Test.java:40)
at Test.main(Test.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
classes are attached, tables should exists but no data is required.
Please also provide workaround on short term if possible
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13 years, 4 months