[Hibernate-JIRA] Created: (HHH-3238) impossible to get the rowcount for a criteria that has projections
by hbMailingList (JIRA)
impossible to get the rowcount for a criteria that has projections
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Key: HHH-3238
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3238
Project: Hibernate3
Issue Type: Bug
Affects Versions: 3.2.6
Environment: hibernate 3.2.6, oracle 10g
Reporter: hbMailingList
Projections.rowCount correctly returns the NUMBER_OF_ROWS for the criteria's resultset.
However if the criteria already has a projection then rowcount no longer returns the NUMBER_OF_ROWS in the result set.
For example:
Criteria c=session.CreateCriteria(Cat.class);
ProjectionList pl = ...;
....
pl.add(Projections.groupProperty("color"));
pl.add(Projections.rowCount());
c.setProjections(pl);
c.list();
will result in the following query:
select color, count(*) from cats group by color
I would expect it to result in:
select count(*) from (select color from cats group by color)
after all if I wanted the count by color I could have simply done:
Projections.count(...)
I really need this feature for my project...if you don't think this will make the release, would you please give me a hint and I'll submit a patch.
Thanks for all the hard work.
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11 years, 11 months
[Hibernate-JIRA] Created: (HHH-2218) java.util.ConcurrentModificationException at org.hibernate.pretty.Printer.toString(Printer.java:90)
by rm (JIRA)
java.util.ConcurrentModificationException at org.hibernate.pretty.Printer.toString(Printer.java:90)
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Key: HHH-2218
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2218
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.1.3
Environment: Hibernate 3.1.3, spring 2.1.8 on Jboss 4.0.2 with Oracle 10g
Reporter: rm
Similar issues have been logged since May 2005 and have been marked as 'Fixed' by Gavin especially for Session.toString() related cases. However, I am also facing similar issues in Printer.toString()...
The saving grace is that when I set the debug level to INFO, the problem goes away...
Am copy/pasting the relevent stacktrace...I have also debugged this on eclipse and the exact location is the call to "new Printer(....)" in AbstractFlushingEventListener.java
java.util.ConcurrentModificationException
10:07:28,421 INFO [STDOUT] at java.util.HashMap$HashIterator.nextEntry(HashMap.java:787)
10:07:28,421 INFO [STDOUT] at java.util.HashMap$ValueIterator.next(HashMap.java:817)
10:07:28,421 INFO [STDOUT] at org.hibernate.pretty.Printer.toString(Printer.java:90)
10:07:28,421 INFO [STDOUT] at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:97)
10:07:28,421 INFO [STDOUT] at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:35)
10:07:28,421 INFO [STDOUT] at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:954)
10:07:28,421 INFO [STDOUT] at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1099)
10:07:28,421 INFO [STDOUT] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
PS: This is my first attempt at logging issues at JIRA. Kindly point out any deficiencies or irregularities in this attempt.
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11 years, 11 months
[Hibernate-JIRA] Created: (ANN-784) MapBinder.createFormulatedValue() does not honor DB schema name when creating query
by Sven Panko (JIRA)
MapBinder.createFormulatedValue() does not honor DB schema name when creating query
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Key: ANN-784
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-784
Project: Hibernate Annotations
Issue Type: Bug
Components: binder
Affects Versions: 3.4.0.GA
Environment: Hibernate 3.3.0.SP1, PostgresQL 8.3
Reporter: Sven Panko
I detected a problem with a ManyToMany mapping using a Map in the following setup:
@Entity
@Table(name = "entitya", schema = "myschema")
class EntityA {
...
@ManyToMany(cascade = { CascadeType.PERSIST, CascadeType.MERGE })
@MapKey(name = "identifier")
@JoinTable(name = "entitya_entityb", schema="myschema", joinColumns = @JoinColumn(name = "entitya_pk"), inverseJoinColumns = @JoinColumn(name = "entityb_pk"))
@Cascade( { org.hibernate.annotations.CascadeType.SAVE_UPDATE, org.hibernate.annotations.CascadeType.DELETE_ORPHAN })
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
private Map<String, EntityB> entityBMap = new HashMap<String, EntityB>();
}
@Entity
@Table(name = "entityb", schema = "myschema")
class EntityB {
...
}
The SQL generated to load the entityBMap collection contains a subquery in the select clause, which looks like this:
select a8.identifier from entityb a8 where a8.pk=entityb0_.entityb_pk (entityb0_.entityb_pk comes from the outer select clause)
The problem here is, that entityb in the from clause is not prepended by the schema name "myschema" (the outer query is correctly doing this in the join clause, however). I tracked this down to the createFormulatedValue() method in the MapBinder class; the responsible code snippet is contained in lines 292 - 296:
StringBuilder fromAndWhereSb = new StringBuilder( " from " )
.append( associatedClass.getTable().getName() )
//.append(" as ") //Oracle doesn't support it in subqueries
.append( " " )
.append( alias ).append( " where " );
associatedClass.getTable().getName() does not return the fully qualified table name, so I think this should look something like this:
StringBuilder fromAndWhereSb = new StringBuilder( " from " );
if (associatedClass.getTable().getSchema() != null) {
fromAndWhereSb.append(associatedClass.getTable().getSchema()).append('.');
}
fromAndWhereSb.append( associatedClass.getTable().getName() )
//.append(" as ") //Oracle doesn't support it in subqueries
.append( " " )
.append( alias ).append( " where " );
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11 years, 11 months