[Hibernate-JIRA] Created: (ANN-654) Generated SQL includes a column named "null" when referencing a map entry by key and using @LazyCollection(LazyCollectionOption.EXTRA)
by Paul Roe (JIRA)
Generated SQL includes a column named "null" when referencing a map entry by key and using @LazyCollection(LazyCollectionOption.EXTRA)
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Key: ANN-654
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-654
Project: Hibernate Annotations
Issue Type: Bug
Components: binder
Affects Versions: 3.2.0.ga
Environment: Oracle 10g, hibernate 3.2
Reporter: Paul Roe
We have an Product entity with a map of RegionProduct by Region.
@MapKey(name="region")
@OneToMany(mappedBy="product", targetEntity= RegionProductImpl.class, fetch = FetchType.LAZY)
@LazyCollection(LazyCollectionOption.EXTRA)
private Map<Region, RegionProduct> regionProducts = new HashMap<Region, RegionProduct>();
When accessing an element of the map by key, the SQL that is generated includes a "null" column in the WHERE condition.
where regionprod0_.PROD_ID=? and regionprod0_.null=?
resulting in the stack trace
org.hibernate.exception.SQLGrammarException: could not collection element by index
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1841)
at org.hibernate.loader.entity.CollectionElementLoader.loadElement(CollectionElementLoader.java:72)
at org.hibernate.persister.collection.OneToManyPersister.getElementByIndex(OneToManyPersister.java:360)
at org.hibernate.collection.AbstractPersistentCollection.readElementByIndex(AbstractPersistentCollection.java:158)
at org.hibernate.collection.PersistentMap.get(PersistentMap.java:146)
Iterating over the collection works successfully, but populates the entire collection, which is what Extra-Lazy is meant to avoid.
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12 years, 1 month
[Hibernate-JIRA] Created: (HHH-2223) BatchFetchQueue.getXXXBatch() cache check impeding batch fetching
by Joel Caplin (JIRA)
BatchFetchQueue.getXXXBatch() cache check impeding batch fetching
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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
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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-2697) Can't use := for variable assignment within a SQL-Statement
by Benjamin Gniza (JIRA)
Can't use := for variable assignment within a SQL-Statement
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Key: HHH-2697
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2697
Project: Hibernate3
Issue Type: Bug
Affects Versions: 3.2.4.sp1
Environment: MySQL Datasource, Hibernate 3.2.4.sp1
Reporter: Benjamin Gniza
Priority: Minor
i found a kind of bug in org.hibernate.engine.query.ParameterParser.java:
I have an exotic mysql-statement where I want to use mysql variables.
VERY SIMPLE example:
SET @pos=0;
SELECT @pos:=@pos+1 FROM TABLE;
Steps to reproduce:
Session s = sessionFactory.openSession();
s.createSQLQuery("SET @pos=0").executeUpdate();
SQLQuery qry = s.createSQLQuery("select @pos:=@pos from SomeTable");
List lst = qry.list();
Exception:
org.hibernate.QueryException: Space is not allowed after parameter prefix ':' 'SELECT @pos:=@pos+1 FROM TABLE'
at org.hibernate.engine.query.ParameterParser.parse(ParameterParser.java:68)
...
...
Suggested fix:
ParameterParser Lines 62 to 73:
if (c == ':' && (indx + 1 >= stringLength || sqlString.charAt(indx + 1) != '=')) {
// named parameter
int right = StringHelper.firstIndexOfChar( sqlString, ParserHelper.HQL_SEPARATORS, indx + 1 );
int chopLocation = right < 0 ? sqlString.length() : right;
String param = sqlString.substring( indx + 1, chopLocation );
if ( StringHelper.isEmpty( param ) ) {
throw new QueryException("Space is not allowed after parameter prefix ':' '"
+ sqlString + "'");
}
recognizer.namedParameter( param, indx );
indx = chopLocation - 1;
}
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12 years, 3 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