[Hibernate-JIRA] Created: (HHH-2308) Adjusting the Outer Join Predicate using Criteria Query
by Ben Grant (JIRA)
Adjusting the Outer Join Predicate using Criteria Query
-------------------------------------------------------
Key: HHH-2308
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2308
Project: Hibernate3
Type: New Feature
Components: query-criteria
Versions: 3.2.1
Environment: Linux Using MS SQLServer
Reporter: Ben Grant
I have two tables
Table A
||Col_1||Col_2||
|London| UK |
|Liverpool| UK |
| New York | USA |
Table B
||Col_1||Col_2|| Col_3||
| UK | Europe | 0
| USA | Americas | 1
Using the Criteria class, Restriction Class and FetchMode, Hibernate manages to create a query that looks like this
select distinct top 2000
this_.Col_1 as y0_, TableB3_.Col2 as y1_
from TableA this_
left outer join TableB TableB3_ on this_.Col_2= TableB3_.Col_1
where TableB3_.Col_3=1
When really i need the query to be like this
select distinct top 2000
this_.Col_1 as y0_, TableB3_.Col2 as y1_
from TableA this_
left outer join TableB TableB3_ on this_.Col_2= TableB3_.Col_1 AND TableB3_.Col_3=1
currently their isn't any know way for hibernate to adjust or apply filters within the join clause.
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11 years, 11 months
[Hibernate-JIRA] Created: (HBX-939) Composite IDs and many-to-many relationships
by Markus Kramer (JIRA)
Composite IDs and many-to-many relationships
--------------------------------------------
Key: HBX-939
URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-939
Project: Hibernate Tools
Issue Type: Bug
Affects Versions: 3.2beta9
Environment: Hibrnate 3.2.1, Postgresql 8.1.8
Reporter: Markus Kramer
Attachments: B.hbm.xml, testdb.sql
The detection of many-to-many relationships doesn't work correctly if the primary key of one of the involved tables consists of more than one field.
An example:
One of two tables (table 'A') of a many-to-many relationship has a primary key consisting of two attributes (id1 and id2).
The generated B.hbm.xml for the table 'B' contains this:
<set name="as" inverse="true" table="a_b">
<key>
<column name="b_id" not-null="true" />
</key>
<many-to-many entity-name="test.A">
<column name="a_id1" not-null="true" />
</many-to-many>
</set>
But there should be another entry for the referenced primary key:
<column name="a_id2" not-null="true" />
The SQL code for the used tables and the complete B.hbm.xml are attached.
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11 years, 11 months
[Hibernate-JIRA] Created: (HHH-2223) BatchFetchQueue.getXXXBatch() cache check impeding batch fetching
by Joel Caplin (JIRA)
BatchFetchQueue.getXXXBatch() cache check impeding batch fetching
-----------------------------------------------------------------
Key: HHH-2223
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2223
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.0.ga
Environment: 3.2.0GA, Mac OS X/Solaris 10, Sybase 12.5/HSQLDB
Reporter: Joel Caplin
Priority: Minor
Attachments: testcase.tar
I have attached a test case which demonstrates the issue at hand by implementing a cheap data model: Pub >---|- Manager -|--< Employee
Pub and Employee are uncached; Manager is cached (tried under both Eh and the non-prod HashMap implementation). All associations are lazy. The test case has a default batch size of 10 and uses hsqldb to demonstrate the problem - which was diagnosed against Sybase.
When BatchFetchQueue.getXXXBatch() is invoked, it does not load any objects it finds in the second level cache - it merely acknowledges their presence by logging to INFO (isCached()). This in turn means that any child associations in that cached object will not have a proxy created for them.
Suppose we want to find all the employees of the pubs in our database. We choose to do this by loading all the Pubs ("FROM Pub") and calling thePub.getManager().getEmployees() iteratively.
When the managers are in the second level cache, Hibernate issues 11 select statements: one to load the pubs and one for each distinct manager.
When the Managers are not in the cache, Hibernate issues 3 select statements: one to load the pubs, one to load the managers and one to load the employees.
A solution might be to load the object from the cache instead of just ignoring it?
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12 years, 2 months
[Hibernate-JIRA] Created: (HHH-2280) Not-Null Constraint-Violation with unidirectional one-to-many mapping
by Robert Herschke (JIRA)
Not-Null Constraint-Violation with unidirectional one-to-many mapping
---------------------------------------------------------------------
Key: HHH-2280
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2280
Project: Hibernate3
Type: Bug
Versions: 3.2.0.cr4
Environment: Hibernate 3.2.0.cr4, Oracle 10XE
Reporter: Robert Herschke
Priority: Blocker
Attachments: one-to-many-test.zip
In some cases it is neccessary to have an unidirectional one-to-many mapping, but not using Join-Tables due to a legacy database system.
So it must be possible, to have a one-to-many mapping just via a foreign-key-mapping. The Child-Object must not know the Parent-Object in this case.
It must also be possible, to pay respect to a NOT-NULL-Constraint at this foreign-key due to restrictions on legacy database systems.
Hibernate doesn't support this, but throw a NOT-NULL-Constraint Violation Exception. The documentation says, "this is unusual" - to which I want to dissent.
See the attached testcase for details, that is adopted from your "one-to-many" testcase found in the 3.2.0 sources.
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12 years, 2 months
[Hibernate-JIRA] Created: (HHH-2165) Change logging level in TableMetadata from INFO to DEBUG or TRACE
by Igor A Tarasov (JIRA)
Change logging level in TableMetadata from INFO to DEBUG or TRACE
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Key: HHH-2165
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2165
Project: Hibernate3
Type: Improvement
Components: metamodel
Versions: 3.2.0.ga
Reporter: Igor A Tarasov
TableMetadata produce too many output to INFO log level. It good thing if it output be at DEBUG level to not hide other impotant information as service start/stop and other.
20.10.06 18:01:58 INFO [main]: SchemaUpdate - updating schema
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.ChageDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [id, _version, chagedate, created, service, sum, restbalance, comment, customer_id]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, fk8f40c06527214c11, chagedate, primary]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.CustomerDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [phone, firm, group_id, deleted, fio, id, balance, created, updated, address, email, name, comment]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, primary, fk1892e50924b4a799, deleted]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.GroupDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [id, updated, created, name, comment, deleted]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, primary, deleted]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.HostDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [tarif_id, server_id, ips, mac, deleted, id, created, updated, name, lastactive, comment, disabled, customer_id]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [ips, name, primary, fk812f2053f280a3b1, mac, deleted, fk812f205327214c11, fk812f20537f1e2ff9]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.HostSessionDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [id, host_id, starttime, chage, speedou, updatetime, speedin, bytesin, stoptime, bytesou, version]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [fk9a9074b995d39b51, id, primary]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.LoginDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [id, nickname, updated, created, name, comment, password, deleted, customer_id, disabled]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, name, primary, fk77a0599427214c11, deleted]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.PPPAccountDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [tarif_id, login_id, id, server_id, updated, created, comment, deleted, disabled, ip]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, fk507abf087f1e2ff9, primary, fk507abf08f280a3b1, fk507abf08820174d9, deleted]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.PPPSessionDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [callerid, starttime, account_id, updatetime, speedou, chage, speedin, stoptime, bytesou, version, ip, id, ident, bytesin]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, fke19b413144f3fa61, starttime, ident, updatetime, primary, stoptime]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.PaymentDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [id, _version, created, nalichka, sum, paydate, comment, newbalance, customer_id]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, fk7249f0f127214c11, primary, paydate]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.ServerDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [id, updated, created, name, comment, deleted, ip]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, name, primary, deleted, ip]
20.10.06 18:01:58 INFO [main]: TableMetadata - table found: isp.TarifDO
20.10.06 18:01:58 INFO [main]: TableMetadata - columns: [costsizein, resetprepaidsize, prepaidsizerest, moncost, resetprepaidusages, costusage, resetprepaidtime, deleted, prepaidtimemonthly, costtime, prepaidsizemonthly, id, prepaidusagesrest, monthenddate, costsizeou, created, updated, name, prepaidtimerest, prepaidusagesmonthly, comment, customer_id]
20.10.06 18:01:58 INFO [main]: TableMetadata - foreign keys: []
20.10.06 18:01:58 INFO [main]: TableMetadata - indexes: [id, primary, fk7893f6d27214c11, deleted]
20.10.06 18:01:58 INFO [main]: SchemaUpdate - schema update complete
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12 years, 3 months