[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
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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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12 years, 7 months
[Hibernate-JIRA] Created: (HHH-3718) call to id getter initializes proxy when using AccessType( "field" )
by Paul Lorenz (JIRA)
call to id getter initializes proxy when using AccessType( "field" )
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Key: HHH-3718
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3718
Project: Hibernate Core
Issue Type: Bug
Components: core
Affects Versions: 3.3.1
Environment: hibernate 3.3.1, hibernate annotations 3.4.0, running on windows, linux and solaris, using sybase 15
Reporter: Paul Lorenz
Calling getter for id when using AccessType( "field" ) causes proxy initialization.
In org.hibernate.proxy.proxy.pojo.BasicLazyInitializer there is the code
else if ( isUninitialized() && method.equals(getIdentifierMethod) ) {
return getIdentifier();
}
However, when using field access, the getIdentifierMethod will be null. I fixed this for us by changing DirectPropertyAccessor by adding a Method attribute to the DirectGetter inner class, and looking up the appropriate getter in the constructor. As far as I can tell, getMethod is only used in two places. In the above case, to the get the identity getter and in PojoComponentTupilizer.isMethodOf. This doesn't seem to break anything. I don't know if this is a clean solution, seems a little hacky to me, however, it would be great if the issue could be fixed somehow.
public static final class DirectGetter implements Getter {
private final transient Field field;
private final Class clazz;
private final String name;
private Method method;
DirectGetter(Field field, Class clazz, String name) {
this.field = field;
this.clazz = clazz;
this.name = name;
try
{
BeanInfo beanInfo = Introspector.getBeanInfo( clazz );
PropertyDescriptor[] pdArray = beanInfo.getPropertyDescriptors();
if ( pdArray != null )
{
for (PropertyDescriptor pd : pdArray )
{
if ( pd.getName().equals( name ) )
{
this.method = pd.getReadMethod();
}
}
}
}
catch ( Exception e )
{
// ignore
}
}
public Object get(Object target) throws HibernateException {
try {
return field.get(target);
}
catch (Exception e) {
throw new PropertyAccessException(e, "could not get a field value by reflection", false, clazz, name);
}
}
public Object getForInsert(Object target, Map mergeMap, SessionImplementor session) {
return get( target );
}
public Method getMethod() {
return method;
}
public String getMethodName() {
return method == null ? null : method.getName();
}
public Class getReturnType() {
return field.getType();
}
Object readResolve() {
return new DirectGetter( getField(clazz, name), clazz, name );
}
public String toString() {
return "DirectGetter(" + clazz.getName() + '.' + name + ')';
}
}
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12 years, 8 months
[Hibernate-JIRA] Created: (ANN-728) @NaturalId doesn't work with @Embeddable/@Embedded
by Kenny MacLeod (JIRA)
@NaturalId doesn't work with @Embeddable/@Embedded
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Key: ANN-728
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-728
Project: Hibernate Annotations
Issue Type: Bug
Affects Versions: 3.3.1.GA
Reporter: Kenny MacLeod
Attachments: BugTestCase.java
If I try to annotate an @Entity's field with @NaturalId, and that field happens to be @Embedded or @Embeddable, then hibernate barfs with
org.hibernate.MappingException: Unable to find logical column name from physical name component in table BugTestCase$MyEntity
at org.hibernate.cfg.Mappings.getLogicalColumnName(Mappings.java:514)
at org.hibernate.cfg.IndexOrUniqueKeySecondPass.doSecondPass(IndexOrUniqueKeySecondPass.java:61)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1136)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:324)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:859)
See attached unit test as a demonstration.
Surely this is not an exotic scenario?
Tested with Hibernate Core 3.2.6-GA
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12 years, 8 months
[Hibernate-JIRA] Created: (HHH-2085) org.hibernate.event.def.DefaultLoadEventListener logs exception at info level
by Don Smith (JIRA)
org.hibernate.event.def.DefaultLoadEventListener logs exception at info level
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Key: HHH-2085
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2085
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.0.cr2
Environment: Hibernate 3.2.0.cr2, MySQL 4.0.18
Reporter: Don Smith
Priority: Minor
Prior to schema generation, accessing a persistent object throws an exception, as expected. The org.hibernate.event.def.DefaultLoadEventListener logs the exception at the info level, which just adds noise to the application console, and prevents application exception handling (in my case it's valid if the table doesn't exist, so I just want to catch the exception and continue). This log statement should be removed, or moved to a debug or trace level, so it won't show up in normal execution.
Code, from line 94 of org.hibernate.event.def.DefaultLoadEventListener:
catch(HibernateException e) {
log.info("Error performing load command", e);
throw e;
}
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12 years, 8 months