[Hibernate-JIRA] Created: (HV-356) Consider if issue when bean's hashCode() uses lazy-loaded property needs to be addressed in default event listener/validator implementation
by Roman Arkadijovych Muntyanu (JIRA)
Consider if issue when bean's hashCode() uses lazy-loaded property needs to be addressed in default event listener/validator implementation
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Key: HV-356
URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-356
Project: Hibernate Validator
Issue Type: Task
Components: validators
Affects Versions: 4.1.0.Final
Environment: Hibernate 3.5.3-Final, Spring 3.0.3.RELEASE, Hibernate Validator 4.1.0.Final
Reporter: Roman Arkadijovych Muntyanu
Assignee: Hardy Ferentschik
Priority: Minor
This issue has been created based on contributor's request in discussion
https://forum.hibernate.org/viewtopic.php?f=9&t=1006194&start=0
related to the issue occurring when persisted object's hashCode() implementation uses lazily-loaded properties.
This triggers "collection [...] was not processed by flush()" issue with default Hibernate Validator event listener (org.hibernate.cfg.beanvalidation.BeanValidationEventListener) and validator (org.hibernate.validator.engine.ValidatorImpl) implementations because of hashCode() usage in SingleThreadCachedTraversableResolver.buildHashCode().
The purpose of this task is to consider whether this is or is not an overlook in assumptions made in validator implementation. And depending on the result following outcomes are expected:
* either create a separate task for addressing the issue in default validator implementation;
* or provide suggestions and (if possible) examples on how the issue can be addressed at the framework user's site if lazily-loaded properties usage IS appropriate.
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12 years, 6 months
[Hibernate-JIRA] Created: (BVAL-197) validation of a persisted map
by tho gau (JIRA)
validation of a persisted map
-----------------------------
Key: BVAL-197
URL: http://opensource.atlassian.com/projects/hibernate/browse/BVAL-197
Project: Bean Validation
Issue Type: Bug
Environment: hibernate-core 3.5.0-Beta-3
Validator 4.0.1.GA
MySQL 5.1
Reporter: tho gau
Attachments: mapValidation.zip
Hi,
I am trying to validate an entity that holds a Map<K, V> of other persisted entities (just checking wether the map holds some predefined values).
I can validate it "by hand" using validator.validate() and my map is correctly filled at validation time
However when validation framework is called by persistence callbacks, my map is always empty...
I am using Validator 4.0.1.GA and hibernate-core 3.5.0-Beta-2
I tryed to pinpoint the problem and it seems that the map is not touched in the following method of AbstractType during the merge :
{code}
public Object replace(
Object original, Object target, SessionImplementor session,
Object owner, Map copyCache, ForeignKeyDirection foreignKeyDirection) throws HibernateException {
boolean include;
if ( isAssociationType() ) {
AssociationType atype = (AssociationType) this;
include = atype.getForeignKeyDirection()==foreignKeyDirection;
}
else {
include = ForeignKeyDirection.FOREIGN_KEY_FROM_PARENT==foreignKeyDirection;
}
return include ? replace(original, target, session, owner, copyCache) : target;
}
{code}
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12 years, 6 months
[Hibernate-JIRA] Created: (HHH-2548) when "order by" a composit object, which may be null, the result list returns only when the composit objcts not null
by Yu Deng (JIRA)
when "order by" a composit object, which may be null, the result list returns only when the composit objcts not null
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Key: HHH-2548
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2548
Project: Hibernate3
Issue Type: Bug
Affects Versions: 3.2.3
Environment: tomcat 5.5, eclipse3.2, jre1.5, postgreSQL8.1, hibernate3 and hibernate3.2
Reporter: Yu Deng
Priority: Critical
<hibernate-mapping package="com.grapevinecs.ams.domain.perbranch.inv">
<class name="InvItem">
<id name="id" column="id">
<generator class="hilo"/>
</id>
...
<many-to-one name="transferredDetails"/> <!-- FK: Points to corresponding entry for transferred inventory items -->
....
</class>
(another mapping file)
</hibernate-mapping>>
<hibernate-mapping package="com.grapevinecs.ams.domain.perbranch.inv">
<class name="InvTransferDetails" >
<id name="id" column="id">
<generator class="hilo"/>
</id>
<property name="returnedToICBC" type="com.grapevinecs.ams.dao.BooleanInteger" not-null="true"/>
...
</class>
</hibernate-mapping>
Probelm:
1) The result returns 3000 records ---- select count(*) from InvItem c where upper(c.invType) LIKE '%D%' and c.invSeries.closed = '0' and c.branch =60551 order by c.transferredDetails.returnedToICBC asc, c.stamp asc,c.invNmbr asc
2) result List return size 0 by this query --- from InvItem c where upper(c.invType) LIKE '%D%' and c.invSeries.closed = '0' and c.branch =60551 order by c.transferredDetails.returnedToICBC asc, c.stamp asc,c.invNmbr asc
1) is correct but 2) is not correct. only when transferredDetails in InvItem not null be returned. in case 2), I have no transferredDetails not null.
after I excuted the query 2), even I remove "c.transferredDetails.returnedToICBC asc", the result is still return nothing.
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12 years, 6 months
[Hibernate-JIRA] Created: (HHH-5927) Performance risk: Suboptimal synchronization in org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan
by Strong Liu (JIRA)
Performance risk: Suboptimal synchronization in org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan
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Key: HHH-5927
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5927
Project: Hibernate Core
Issue Type: Improvement
Components: core
Reporter: Strong Liu
Attachments: hotspot.png
with Order Demo (real-life simulation attempt test app) I have noticed that there is thread contention on createNamesQuery() which sounds suspicious.
After investigation it boils down to org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan. It serves as a cache (internal, not replacable) for queries using LRU algorithm (supplied from Apache utils).
Generally speaking, blocking threads in any sort of caches indicates a problem. From about 2000 calls, 700 got blocked (which is also not nice for context switching).
I guess, one of the problems is that there is exclusive synchronization in get method:
public synchronized Object get(Object key) {...}
which could be replaced by a more granular read-write lock.
org/hibernate/engine/query/QueryPlanCache.java
org/hibernate/util/SoftLimitMRUCache.java
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12 years, 6 months