[Hibernate-JIRA] Created: (HHH-3414) fetch profiles
by Steve Ebersole (JIRA)
fetch profiles
--------------
Key: HHH-3414
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3414
Project: Hibernate3
Issue Type: New Feature
Components: core, metamodel
Reporter: Steve Ebersole
Assignee: Steve Ebersole
Fix For: 3.4
The concept of fetch profiles as we are discussing here is basically to allow users to dynamically affect the mapped fetching strategy for associations at runtime.
Consider the following example:
<class name="Person">
...
<set name="addresses" lazy="true" fetch="subselect" ...>
...
</set>
</class>
<class name="Address">
...
</class>
This follows the normal recommendation to map associations as lazy and use a dynamic fetching strategy (ala HQL/Criteria) to modify this lazy behavior at runtime.
The fetaure discussed here would allow the same behavior for loading as well:
<hibernate-mapping>
<fetch-profile name="person-details">
<fetch path="Person.addresses" style="join"/>
</fetch-profile>
</hibernate-mapping>
Or:
<hibernate-mapping>
<class name="Person">
...
<fetch-profile name="person-details">
<fetch path="addresses" style="join"/>
</fetch-profile>
<set name="addresses" lazy="true" fetch="subselect" ...>
...
</set>
</class>
</hibernate-mapping>
Now, doing:
session.enableFetchProfile( "person-details" ).get( Person.class, 1 )...
will load Person#1 as well as their addresses in a single joined query.
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12 years, 4 months
[Hibernate-JIRA] Created: (ANN-721) ManyToOne Persisting Cascade in Embeddable
by Endre Jeges (JIRA)
ManyToOne Persisting Cascade in Embeddable
------------------------------------------
Key: ANN-721
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-721
Project: Hibernate Annotations
Issue Type: Bug
Affects Versions: 3.3.1.GA
Environment: Java version:
java version "1.6.0_04"
Java(TM) SE Runtime Environment (build 1.6.0_04-b12)
Java HotSpot(TM) Client VM (build 10.0-b19, mixed mode, sharing)
Oracle Version:
Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production
PL/SQL Release 9.2.0.8.0 - Production
"CORE 9.2.0.8.0 Production"
TNS for Linux: Version 9.2.0.8.0 - Production
NLSRTL Version 9.2.0.8.0 - Production
hibernate: 3.2.6.ga
hibernate-annotations: 3.3.1.ga
hibernate-commons-annotations: 3.3.0.ga
hibernate-entitymanager: 3.3.1.ga
Reporter: Endre Jeges
Attachments: pairTest.zip
Hello,
I have found something that is a bit strange. For @ManyToOne association properties in an @Embeddable class the cascade PERSIST, SAVE-UPDATE option is not working well (not sure for the other cascade types), if the entities associated with ManyToOne are transient. I have created a unit test to check it and I have it attached to this issue. It is a maven2 project, and needs Oracle to run it. If I save the associated entites, then everything works fine, also the data structure is created well.
I have checked the forums and found similar problems, maybe they can help more then my post:
http://forum.hibernate.org/viewtopic.php?t=965238
http://forum.hibernate.org/viewtopic.php?t=976534
http://forum.hibernate.org/viewtopic.php?t=978112
http://forum.hibernate.org/viewtopic.php?t=978138
http://forum.hibernate.org/viewtopic.php?t=983766
http://forum.hibernate.org/viewtopic.php?t=983780
http://forum.hibernate.org/viewtopic.php?t=983868
Details:
@Entity
class CodedPairHolder {
@Id
private Long id;
@Column(name = "CODE", nullable = false, unique = true, updatable = false, length = 256)
private String code;
@CollectionOfElements
@JoinTable(name = "CODED_PAIR_HOLDER_PAIR_SET", joinColumns = @JoinColumn(name = "CODED_PAIR_HOLDER_ID"))
private final Set<PersonPair> pairs = new HashSet<PersonPair>(0);
........ constructors getters equals hashCode
}
@Embeddable
class PersonPair {
@ManyToOne(optional = false, fetch = FetchType.LAZY, cascade = { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH })
@Cascade( { org.hibernate.annotations.CascadeType.PERSIST, org.hibernate.annotations.CascadeType.MERGE, org.hibernate.annotations.CascadeType.REFRESH,
org.hibernate.annotations.CascadeType.SAVE_UPDATE, org.hibernate.annotations.CascadeType.REPLICATE, org.hibernate.annotations.CascadeType.EVICT })
@JoinColumn(name = "LEFT_PERSON_ID", nullable = false, updatable = false)
private Person left;
@ManyToOne(optional = false, fetch = FetchType.LAZY, cascade = { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH })
@Cascade( { org.hibernate.annotations.CascadeType.PERSIST, org.hibernate.annotations.CascadeType.MERGE, org.hibernate.annotations.CascadeType.REFRESH,
org.hibernate.annotations.CascadeType.SAVE_UPDATE, org.hibernate.annotations.CascadeType.REPLICATE, org.hibernate.annotations.CascadeType.EVICT })
@JoinColumn(name = "RIGHT_PERSON_ID", nullable = false, updatable = false)
private Person right;
........ constructors getters equals hashCode
}
@Entity
class Person {
@Id
private Long id;
@Column(name = "NAME", nullable = false, unique = true, updatable = false, length = 256)
private String name;
........ constructors getters equals hashCode
}
The error message is:
org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: Person
Regards,
jeges
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12 years, 4 months
[Hibernate-JIRA] Created: (HHH-2738) Eager fetch support for StatelessSession
by Christian Bauer (JIRA)
Eager fetch support for StatelessSession
----------------------------------------
Key: HHH-2738
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2738
Project: Hibernate3
Issue Type: Task
Components: core
Reporter: Christian Bauer
class Node {
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "PARENT_NODE_ID", nullable = true)
protected Node parent;
}
StatelessSession ss = getStatelessSession();
Node node = (Node) ss.get(Node.class, nodeId);
[testng] org.hibernate.AssertionFailure: possible non-threadsafe access to the session
[testng] at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:100)
[testng] at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
[testng] at org.hibernate.loader.Loader.doQuery(Loader.java:729)
[testng] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
[testng] at org.hibernate.loader.Loader.loadEntity(Loader.java:1860)
[testng] at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48)
[testng] at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42)
[testng] at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3042)
[testng] at org.hibernate.impl.StatelessSessionImpl.get(StatelessSessionImpl.java:158)
[testng] at org.hibernate.impl.StatelessSessionImpl.get(StatelessSessionImpl.java:153)
[testng] at org.hibernate.impl.StatelessSessionImpl.get(StatelessSessionImpl.java:145)
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12 years, 4 months
[Hibernate-JIRA] Created: (HHH-2052) org.hibernate.pretty.MessageHelper.collectionInfoString tries to cast wrong object to String, causes ClassCastException
by Tree 'Huggy Bear' Hugger (JIRA)
org.hibernate.pretty.MessageHelper.collectionInfoString tries to cast wrong object to String, causes ClassCastException
-----------------------------------------------------------------------------------------------------------------------
Key: HHH-2052
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2052
Project: Hibernate3
Type: Bug
Reporter: Tree 'Huggy Bear' Hugger
Attachments: bugtest.zip
Debug level logging attempted by MessageHelper falls over when constructing a loggable string for a mapped collection on the main entity.
Following the code in the stacktrace, I can see that MessageHelper expects the parent key for the collection relationship to be the primary key, but it is mapped to another field of a different type via a property-ref. Hence the ClassCastException below.
The work around is to set logging to INFO or higher.
I have also attached a pared-down zip with the maven 2 project containing the mappings and the unit test which fails.
The following JIRA issue may be the same thing:
http://opensource.atlassian.com/projects/hibernate/browse/ANN-298
The following messages on the Hib forum demonstrate other interest in this issue:
http://forum.hibernate.org/viewtopic.php?t=949913
http://forum.hibernate.org/viewtopic.php?t=956778
http://forum.hibernate.org/viewtopic.php?t=962471
java.lang.ClassCastException: com.nomadsoft.cortex.domain.country.basic.BasicCountry
at org.hibernate.type.StringType.toString(StringType.java:44)
at org.hibernate.type.NullableType.toLoggableString(NullableType.java:168)
at org.hibernate.pretty.MessageHelper.collectionInfoString(MessageHelper.java:284)
at org.hibernate.loader.Loader.readCollectionElement(Loader.java:972)
at org.hibernate.loader.Loader.readCollectionElements(Loader.java:635)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:580)
at org.hibernate.loader.Loader.doQuery(Loader.java:689)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1785)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:47)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:41)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2730)
at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:365)
at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:346)
at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:123)
at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:177)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:862)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:799)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:792)
at org.springframework.orm.hibernate3.HibernateTemplate$1.doInHibernate(HibernateTemplate.java:452)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:366)
at org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:446)
at org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:440)
at com.nomadsoft.cortex.infrastructure.hibernate.HibernateCountryRepository.getById(HibernateCountryRepository.java:26)
at com.nomadsoft.cortex.domain.country.basic.BasicCountryService.getCountry(BasicCountryService.java:34)
etc etc
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12 years, 4 months
[Hibernate-JIRA] Created: (HHH-3383) QueryKey is storing references to entities instead of identifiers
by Manuel Dominguez Sarmiento (JIRA)
QueryKey is storing references to entities instead of identifiers
-----------------------------------------------------------------
Key: HHH-3383
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3383
Project: Hibernate3
Issue Type: Improvement
Components: caching (L2)
Affects Versions: 3.3.0.CR1
Environment: ehcache 1.5.0b2
Reporter: Manuel Dominguez Sarmiento
Context: query caching
Hibernate is storing full entity references when building QueryKeys and the query has restrictions which reference entities. This happens either with Criteria or HQL queries.
Although this is not incorrect, when the referenced entities reference in turn "heavy" object graphs, this causes a very significant memory usage increase, since references to detached entities will remain in the cache. This is even more evident when using disk persistence with ehcache, since the full object graphs are serialized to disk.
This could be easily improved (correct me if I'm wrong) by storing ONLY entity identifiers in the QueryKey instead of full entities, since all the query really needs is the identifier property. The memory usage would decrease dramatically.
So far the workaround we've found is explicitly using restrictions that reference identifiers instead of properties in HQL queries, however this is not particularly elegant, and still leaves open the issue with Criteria queries. The same cannot be done without criteria.createCriteria() which generates an unnecessary join in most cases.
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12 years, 5 months
[Hibernate-JIRA] Created: (HHH-2763) (lazy) m:n relation + EventListener = AssertionFailure: collection [n-side] was not processed by flush()
by S.Schnabl (JIRA)
(lazy) m:n relation + EventListener = AssertionFailure: collection [n-side] was not processed by flush()
--------------------------------------------------------------------------------------------------------
Key: HHH-2763
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2763
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.5, 3.2.4.sp1
Environment: Windows-XP, Jboss 4.2.1GA, Hibernate 3.2.4SP1, EJB3
Reporter: S.Schnabl
Priority: Critical
Attachments: Testcase.zip
For more details see the attached testcase. I'm sorry, but in the short of time i only got a testcase for jboss-server 4.2. Please deploy the server.ear from /release-directory and then call the /src/client/TestCaseClient.java.
[Summarized]
It seems, that touching a lazy (Persistent-)Collection of at least a m:n relation inside a Hibernate event-listener always raises this error:
org.hibernate.AssertionFailure: collection [n-side] was not processed by flush()
[Explanation]
I have two entities A. and B. Both having a m:n relation between each other. Furthermore there is an PostUpdateListener, which iterates onUpdate of entitiy through all properties of updated entity.
[Testcase]
Both entities are linked with eachother (m:n). If i now do a simple update of a property of entity A --> MyPostUpdateListener will be called, which iterates through every property of the updated entity. In case of this property was a collection (= lazy PersistentCollection of m:n relation), hibernate initializes the collection for further work. I can now run through all objects of the collection, but after all work is done in listener, I get the following exception from postFlush:
Caused by: org.hibernate.AssertionFailure: collection [com.qualitype.testcase.server.ejb.entity.EntityB.entitiesOfA] was not processed by flush()
at org.hibernate.engine.CollectionEntry.postFlush(CollectionEntry.java:205)
at org.hibernate.event.def.AbstractFlushingEventListener.postFlush(AbstractFlushingEventListener.java:333)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:28)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:515)
... 29 more
Attention: EntityB.entitiesOfA is the other-side collection of the m:n relation of the updated EntityA.
We are using hibernate-event listener system for auditing-purposes, so you should understand that touching every (element in the) collection is necessary for audit-purposes.
Seems for me like a serious bug. Need this fixed asap ...
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12 years, 5 months
[Hibernate-JIRA] Created: (HHH-2511) generated="insert/always" ignored for property in composite-element?
by James Garrison (JIRA)
generated="insert/always" ignored for property in composite-element?
--------------------------------------------------------------------
Key: HHH-2511
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2511
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.2
Environment: Hibernate 3.2.2, Windows XP SP2, Oracle 9i
Reporter: James Garrison
Priority: Minor
I have a composite-element (in an idbag) that has a db-generated timestamp
property. I have defined the property with update="false" insert="false" generated="insert",
but Hibernate is trying to insert a null value when saving a transient object.
See below, the "createTs" property (column=CREATE_TS) in the "comments"
composite-element.
DDL:
create table CR_COMMENT
(
COMMENT_ID integer not null,
REQ_ID integer not null,
CREATE_TS timestamp default sysdate not null,
SECTION_ID char(1) not null,
USER_ID varchar2(20) not null,
TEXT varchar2(4000) not null,
primary key(COMMENT_ID),
foreign key(REQ_ID) references CR_REQUEST (REQ_ID) on delete cascade
);
Mapping:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.wholefoods.ittoolkit.ws.ccf">
<class name="Request" table="CR_REQUEST">
<id name="reqId" column="REQ_ID" type="long">
<generator class="sequence">
<param name="sequence">CR_REQUEST_ID</param>
</generator>
</id>
[snip]
<idbag name="comments" table="CR_COMMENT">
<collection-id type="long" column="COMMENT_ID">
<generator class="sequence">
<param name="sequence">CR_COMMENT_ID</param>
</generator>
</collection-id>
<key column="REQ_ID" />
<composite-element class="Comment">
<property name="createTs" column="CREATE_TS"
type="calendar"
access="field"
update="false"
insert="false"
generated="insert" />
<property name="sectionId" column="SECTION_ID" />
<property name="userId" column="USER_ID" />
<property name="text" column="TEXT"/>
</composite-element>
</idbag>
</class>
</hibernate-mapping>
Log Output:
Hibernate:
/* insert collection
row com.wholefoods.ittoolkit.ws.ccf.Request.comments */ insert
into
ITTOOLKIT.CR_COMMENT
(REQ_ID, COMMENT_ID, CREATE_TS, SECTION_ID, USER_ID, TEXT)
values
(?, ?, ?, ?, ?, ?)
10:15:01,659 DEBUG org.hibernate.jdbc.AbstractBatcher:476 - preparing statement
10:15:01,675 DEBUG org.hibernate.type.LongType:133 - binding '47' to parameter: 1
10:15:01,675 DEBUG org.hibernate.type.LongType:133 - binding '7' to parameter: 2
10:15:01,675 DEBUG org.hibernate.type.CalendarType:126 - binding null to parameter: 3
10:15:01,675 DEBUG org.hibernate.type.StringType:133 - binding 'A' to parameter: 4
10:15:01,690 DEBUG org.hibernate.type.StringType:133 - binding 'garrisoj' to parameter: 5
10:15:01,690 DEBUG org.hibernate.type.StringType:133 - binding 'This is a test comment' to parameter: 6
10:15:01,690 DEBUG org.hibernate.persister.collection.AbstractCollectionPersister:1172 - done inserting collection: 1 rows inserted
10:15:01,690 DEBUG org.hibernate.jdbc.AbstractBatcher:44 - Executing batch size: 1
10:15:01,737 DEBUG org.hibernate.jdbc.AbstractBatcher:366 - about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
10:15:01,737 DEBUG org.hibernate.jdbc.AbstractBatcher:525 - closing statement
10:15:01,768 DEBUG org.hibernate.util.JDBCExceptionReporter:69 - Could not execute JDBC batch update
[/* insert collection row com.wholefoods.ittoolkit.ws.ccf.Request.comments */
insert into ITTOOLKIT.CR_COMMENT (REQ_ID, COMMENT_ID, CREATE_TS, SECTION_ID, USER_ID, TEXT)
values (?, ?, ?, ?, ?, ?)]
java.sql.BatchUpdateException: ORA-01400: cannot insert NULL into ("ITTOOLKIT"."CR_COMMENT"."CREATE_TS")
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12 years, 5 months