5:53 p.m.
ManyToMany alias not built in Criteria Query with max fetch depth of 0
----------------------------------------------------------------------
Key: HHH-5067
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5067
Project: Hibernate Core
Issue Type: Bug
Components: query-criteria
Affects Versions: 3.5.0-Final
Environment: Hib 3.5.0 final, Oracle 10g
Reporter: Shawn Clowater
Criteria Queries that used to work in 3.3.2 no longer work in 3.5.0.
They seem to be limited to queries that involve many-to-many associations and based on the
fact that we have our Enviroment.MAX_FETCH_DEPTH set to 0
{code}
DetachedCriteria detachedCriteria =
DetachedCriteria.forClass(AgmtContractLine.class);
detachedCriteria.createAlias("tradingGroups, "Ree");
detachedCriteria.add(Restrictions.eq("Ree.uuid", "333"));
{code}
Based on the simple Query, joining through the many to many produced the following in
3.3.2
{code}
select
this_.AGMT_CNTRCT_LINE_ID as AGMT1_24_1_,
this_.UUID as UUID24_1_,
this_.CREATE_DATE as CREATE3_24_1_,
this_.CREATE_USER as CREATE4_24_1_,
this_.UPDATE_DATE as UPDATE5_24_1_,
this_.UPDATE_USER as UPDATE6_24_1_,
this_.AGMT_CNTRCT_ID as AGMT7_24_1_,
this_.NOTE_H_ID as NOTE8_24_1_,
tradinggro3_.AGMT_CNTRCT_LINE_ID as AGMT1_,
ree1_.TRADING_GROUP_ID as TRADING2_,
ree1_.TRADING_GROUP_ID as TRADING1_324_0_,
ree1_.UUID as UUID324_0_,
ree1_.CREATE_DATE as CREATE3_324_0_,
ree1_.CREATE_USER as CREATE4_324_0_,
ree1_.UPDATE_DATE as UPDATE5_324_0_,
ree1_.UPDATE_USER as UPDATE6_324_0_,
ree1_.DESCRIPTION as DESCRIPT7_324_0_,
ree1_.EXPIRY_DATE as EXPIRY8_324_0_,
ree1_.SYSTEM_DEPENDANT_FLG as SYSTEM9_324_0_,
ree1_.TRADING_GROUP_CODE as TRADING10_324_0_,
ree1_.TRADING_GROUP_TYPE_ID as TRADING11_324_0_
from
AGMT_CNTRCT_LINE this_
inner join
AGMT_CNTRCT_LINE_GROUP_XREF tradinggro3_
on this_.AGMT_CNTRCT_LINE_ID=tradinggro3_.AGMT_CNTRCT_LINE_ID
inner join
TRADING_GROUP ree1_
on tradinggro3_.TRADING_GROUP_ID=ree1_.TRADING_GROUP_ID
where
ree1_.UUID=?
{code}
The same thing in 3.5.0 produced:
{code}
select
this_.AGMT_CNTRCT_LINE_ID as AGMT1_25_0_,
this_.UUID as UUID25_0_,
this_.CREATE_DATE as CREATE3_25_0_,
this_.CREATE_USER as CREATE4_25_0_,
this_.UPDATE_DATE as UPDATE5_25_0_,
this_.UPDATE_USER as UPDATE6_25_0_,
this_.AGMT_CNTRCT_ID as AGMT7_25_0_,
this_.NOTE_H_ID as NOTE8_25_0_,
from
AGMT_CNTRCT_LINE this_
inner join
AGMT_CNTRCT_LINE_GROUP_XREF tradinggro3_
on this_.AGMT_CNTRCT_LINE_ID=tradinggro3_.AGMT_CNTRCT_LINE_ID
where
ree1_.UUID=?
{code}
Using the hib core tag I added the following test to
org.hibernate.test.annotations.manytomany.ManyToManyTest
{code}
public void testCanUseCriteriaQuery() throws Exception {
Session s;
Transaction tx;
s = openSession();
tx = s.beginTransaction();
Store fnac = new Store();
fnac.setName("Fnac");
Supplier emi = new Supplier();
emi.setName("Emmanuel");
emi.setSuppStores(new HashSet<Store>());
fnac.setSuppliers(new HashSet<Supplier>());
fnac.getSuppliers().add(emi);
emi.getSuppStores().add(fnac);
s.persist(fnac);
tx.commit();
s.close();
s = openSession();
List result = DetachedCriteria.forClass(Supplier.class)
.createAlias("suppStores", "s")
.add(Restrictions.eq("s.name", "I don't even need a
match"))
.getExecutableCriteria(s)
.list();
s.close();
assertEquals(0, result.size());
}
{code}
This will work fine unless the max fetch depth is set to 0 (i flipped it when the session
factory is rebuilt in TestCase)at which point the following exception will be thrown.
{code}
org.hibernate.exception.SQLGrammarException: could not execute query
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.loader.Loader.doList(Loader.java:2297)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2172)
at org.hibernate.loader.Loader.list(Loader.java:2167)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1706)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
at
org.hibernate.test.annotations.manytomany.ManyToManyTest.testCanUseCriteriaQuery(ManyToManyTest.java:185)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.hibernate.test.annotations.HibernateTestCase.runTest(HibernateTestCase.java:112)
at org.hibernate.test.annotations.HibernateTestCase.runBare(HibernateTestCase.java:100)
at com.intellij.junit3.JUnit3IdeaTestRunner.doRun(JUnit3IdeaTestRunner.java:108)
at
com.intellij.junit3.JUnit3IdeaTestRunner.startRunnerWithArgs(JUnit3IdeaTestRunner.java:42)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:165)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:110)
Caused by: java.sql.SQLException: Unexpected token: FROM in statement [select this_.id as
id8_0_, this_.name as name8_0_, from Supplier this_ inner join StoreSupplier suppstores3_
on this_.id=suppstores3_.supplier where s1_.name=?]
at org.hsqldb.jdbc.Util.throwError(Unknown Source)
at org.hsqldb.jdbc.jdbcPreparedStatement.<init>(Unknown Source)
at org.hsqldb.jdbc.jdbcConnection.prepareStatement(Unknown Source)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:534)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:452)
at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1596)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:270)
at org.hibernate.loader.Loader.doList(Loader.java:2294)
... 28 more
{code}
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