[Hibernate-JIRA] Created: (HSEARCH-349) Allow custom Loader in FullTextQueryImpl
by Julien Kronegg (JIRA)
Allow custom Loader in FullTextQueryImpl
----------------------------------------
Key: HSEARCH-349
URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-349
Project: Hibernate Search
Issue Type: New Feature
Components: query
Affects Versions: 3.1.0.GA
Environment: Hibernate 3.3.1.GA, DB2
Reporter: Julien Kronegg
Priority: Minor
When doing an native SQL query containing join and other complicated stuff, one can get a List<MyObject> using the following code:
List<MyObject> list = entityManager.createNativeQuery("SELECT ...", MyObject.class).getResultList();
The MyObject class is an JPA Entity, but is not connected to a database table: the MyObject instance is reconstructed automatically by mapping the ResultSet column names and the MyObject field names.
This object list can be indexed using Hibernate Search (by adding @Indexed and @Field annotations to the MyObject entity). When doing an Hibernate Search query, the FullTextQueryImpl.list() method uses a Loader which try to load the MyObject entities from the database by a query such as "SELECT ... FROM MYOBJECT where id in (?,?,?,..)" (where the list of "?" is the list of identifiers returned by Lucene).
Here, we have a problem: the MYOBJECT table does not exist and obviously an exception is raised. The desired result would be for example to look into the initial List<MyObject> "list" instead of asking to the database.
This functionnality could be done very simply by adding a "Loader customLoader" field (with its public getter/setter) in the org.hibernate.search.query.FullTextQueryImpl class and by modifying the getLoader() method such as:
private Loader getLoader(Session session, SessionFactoryImplementor sessionFactoryImplementor) {
if (customLoader!=null) {
customLoader.init(session, sessionFactoryImplementor);
return customLoader;
}
...
}
After this modification, the programmer can design its own Loader which implements whatever loading strategy. For the example above, the Loader.load(EntityInfo[]) method may looks for each EntityInfo.id in the initially obtained List<MyObject> "list".
There is a workaround: copy the full source code of FullTextQueryImpl and add the described modifications.
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12 years, 6 months
[Hibernate-JIRA] Created: (HHH-2459) Problem with <parent> for 2+ levels of components
by Kevin Bragh (JIRA)
Problem with <parent> for 2+ levels of components
-------------------------------------------------
Key: HHH-2459
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2459
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.2
Environment: Hibernate 3.2.2, Tested on PostgreSQL and HSQL
Reporter: Kevin Bragh
Attachments: test.zip
I have tested several scenarios similar to the above, and I have searched and posted to the forum with no response.
I have attached the faulty code to the thread.
I have a main class (A) with 3 components recusively included as follows:
A -> B -> C <-> D
In the case above, D has a <parent> property to C.
While loading an instance of A, it seems that D.setC(...) is called with the value of the main class A, and not of parent C.
I don't know if this is a bug, or if parent is not recusively supported.
Any help is appreciated.
Thks, K.
NB: I have tried many different examples (with list and composite-element, etc.) and they all fail with 2+ levels of recursion.
Log
-----
2007-03-01 14:53:07,843 DEBUG [org.hibernate.impl.SessionImpl] - <opened session at timestamp: 4803613441277952>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.transaction.JDBCTransaction] - <begin>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.jdbc.ConnectionManager] - <opening JDBC connection>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.connection.DriverManagerConnectionProvider] - <total checked-out connections: 0>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.connection.DriverManagerConnectionProvider] - <using pooled JDBC connection, pool size: 0>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.transaction.JDBCTransaction] - <current autocommit status: false>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.jdbc.JDBCContext] - <after transaction begin>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.event.def.DefaultSaveOrUpdateEventListener] - <saving transient instance>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.event.def.AbstractSaveEventListener] - <saving [test.hibernate.recurse.A#<null>]>
2007-03-01 14:53:07,843 DEBUG [org.hibernate.event.def.AbstractSaveEventListener] - <executing insertions>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.engine.Versioning] - <using initial version: 0>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.persister.entity.AbstractEntityPersister] - <Inserting entity: test.hibernate.recurse.A (native id)>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.persister.entity.AbstractEntityPersister] - <Version: 0>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to open PreparedStatement (open PreparedStatements: 0, globally: 0)>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.SQL] - <insert into TEST_A (NO_VERSION, VAL, VAL_B, VAL_C, VAL_D, UID) values (?, ?, ?, ?, ?, null)>
Hibernate: insert into TEST_A (NO_VERSION, VAL, VAL_B, VAL_C, VAL_D, UID) values (?, ?, ?, ?, ?, null)
2007-03-01 14:53:07,859 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <preparing statement>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.persister.entity.AbstractEntityPersister] - <Dehydrating entity: [test.hibernate.recurse.A#<null>]>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.type.IntegerType] - <binding '0' to parameter: 1>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.type.IntegerType] - <binding '0' to parameter: 2>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.type.IntegerType] - <binding '0' to parameter: 3>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.type.IntegerType] - <binding '0' to parameter: 4>
2007-03-01 14:53:07,859 DEBUG [org.hibernate.type.IntegerType] - <binding '0' to parameter: 5>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to close PreparedStatement (open PreparedStatements: 1, globally: 1)>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <closing statement>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to open PreparedStatement (open PreparedStatements: 0, globally: 0)>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.SQL] - <call identity()>
Hibernate: call identity()
2007-03-01 14:53:07,875 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <preparing statement>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.id.IdentifierGeneratorFactory] - <Natively generated identity: 1>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to close PreparedStatement (open PreparedStatements: 1, globally: 1)>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <closing statement>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <flushing session>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <processing flush-time cascades>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <dirty checking collections>
2007-03-01 14:53:07,875 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Flushing entities and processing referenced collections>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Processing unreferenced collections>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Scheduling collection removes/(re)creates/updates>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Flushed: 0 insertions, 0 updates, 0 deletions to 1 objects>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Flushed: 0 (re)creations, 0 updates, 0 removals to 0 collections>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.pretty.Printer] - <listing entities:>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.pretty.Printer] - <test.hibernate.recurse.A{val=0, b=component[valB,c]{valB=0, c=component[valC,d]{d=component[valD]{valD=0}, valC=0}}, id=1, version=0}>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <executing flush>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <post flush>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.transaction.JDBCTransaction] - <commit>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.impl.SessionImpl] - <automatically flushing session>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <flushing session>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <processing flush-time cascades>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <dirty checking collections>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Flushing entities and processing referenced collections>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Processing unreferenced collections>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Scheduling collection removes/(re)creates/updates>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Flushed: 0 insertions, 0 updates, 0 deletions to 1 objects>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <Flushed: 0 (re)creations, 0 updates, 0 removals to 0 collections>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.pretty.Printer] - <listing entities:>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.pretty.Printer] - <test.hibernate.recurse.A{val=0, b=component[valB,c]{valB=0, c=component[valC,d]{d=component[valD]{valD=0}, valC=0}}, id=1, version=0}>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <executing flush>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - <post flush>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.jdbc.JDBCContext] - <before transaction completion>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.impl.SessionImpl] - <before transaction completion>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.transaction.JDBCTransaction] - <committed JDBC Connection>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.jdbc.JDBCContext] - <after transaction completion>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.jdbc.ConnectionManager] - <aggressively releasing JDBC connection>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.jdbc.ConnectionManager] - <closing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.connection.DriverManagerConnectionProvider] - <returning connection to pool, pool size: 1>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.impl.SessionImpl] - <after transaction completion>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.impl.SessionImpl] - <closing session>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.jdbc.ConnectionManager] - <connection already null in cleanup : no action>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.impl.SessionImpl] - <opened session at timestamp: 4803613441597440>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.transaction.JDBCTransaction] - <begin>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.jdbc.ConnectionManager] - <opening JDBC connection>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.connection.DriverManagerConnectionProvider] - <total checked-out connections: 0>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.connection.DriverManagerConnectionProvider] - <using pooled JDBC connection, pool size: 0>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.transaction.JDBCTransaction] - <current autocommit status: false>
2007-03-01 14:53:07,890 DEBUG [org.hibernate.jdbc.JDBCContext] - <after transaction begin>
2007-03-01 14:53:07,906 DEBUG [org.hibernate.engine.query.QueryPlanCache] - <unable to locate HQL query plan in cache; generating (from test.hibernate.recurse.A)>
2007-03-01 14:53:07,921 DEBUG [org.hibernate.jdbc.ConnectionManager] - <running Session.finalize()>
2007-03-01 14:53:08,000 DEBUG [org.hibernate.hql.ast.QueryTranslatorImpl] - <parse() - HQL: from test.hibernate.recurse.A>
2007-03-01 14:53:08,015 DEBUG [org.hibernate.hql.ast.AST] - <--- HQL AST ---
\-[QUERY] 'query'
\-[SELECT_FROM] 'SELECT_FROM'
\-[FROM] 'from'
\-[RANGE] 'RANGE'
\-[DOT] '.'
+-[DOT] '.'
| +-[DOT] '.'
| | +-[IDENT] 'test'
| | \-[IDENT] 'hibernate'
| \-[IDENT] 'recurse'
\-[IDENT] 'A'
>
2007-03-01 14:53:08,031 DEBUG [org.hibernate.hql.ast.ErrorCounter] - <throwQueryException() : no errors>
2007-03-01 14:53:08,078 DEBUG [org.hibernate.hql.antlr.HqlSqlBaseWalker] - <select << begin [level=1, statement=select]>
2007-03-01 14:53:08,093 DEBUG [org.hibernate.hql.ast.tree.FromElement] - <FromClause{level=1} : test.hibernate.recurse.A (no alias) -> a0_>
2007-03-01 14:53:08,093 DEBUG [org.hibernate.hql.antlr.HqlSqlBaseWalker] - <select : finishing up [level=1, statement=select]>
2007-03-01 14:53:08,093 DEBUG [org.hibernate.hql.ast.HqlSqlWalker] - <processQuery() : ( SELECT ( FromClause{level=1} TEST_A a0_ ) )>
2007-03-01 14:53:08,109 DEBUG [org.hibernate.hql.ast.HqlSqlWalker] - <Derived SELECT clause created.>
2007-03-01 14:53:08,109 DEBUG [org.hibernate.hql.ast.util.JoinProcessor] - <Using FROM fragment [TEST_A a0_]>
2007-03-01 14:53:08,109 DEBUG [org.hibernate.hql.antlr.HqlSqlBaseWalker] - <select >> end [level=1, statement=select]>
2007-03-01 14:53:08,109 DEBUG [org.hibernate.hql.ast.AST] - <--- SQL AST ---
\-[SELECT] QueryNode: 'SELECT' querySpaces (TEST_A)
+-[SELECT_CLAUSE] SelectClause: '{derived select clause}'
| +-[SELECT_EXPR] SelectExpressionImpl: 'a0_.UID as UID0_' {FromElement{explicit,not a collection join,not a fetch join,fetch non-lazy properties,classAlias=null,role=null,tableName=TEST_A,tableAlias=a0_,origin=null,colums={,className=test.hibernate.recurse.A}}}
| \-[SQL_TOKEN] SqlFragment: 'a0_.NO_VERSION as NO2_0_, a0_.VAL as VAL0_, a0_.VAL_B as VAL4_0_, a0_.VAL_C as VAL5_0_, a0_.VAL_D as VAL6_0_'
\-[FROM] FromClause: 'from' FromClause{level=1, fromElementCounter=1, fromElements=1, fromElementByClassAlias=[], fromElementByTableAlias=[a0_], fromElementsByPath=[], collectionJoinFromElementsByPath=[], impliedElements=[]}
\-[FROM_FRAGMENT] FromElement: 'TEST_A a0_' FromElement{explicit,not a collection join,not a fetch join,fetch non-lazy properties,classAlias=null,role=null,tableName=TEST_A,tableAlias=a0_,origin=null,colums={,className=test.hibernate.recurse.A}}
>
2007-03-01 14:53:08,109 DEBUG [org.hibernate.hql.ast.ErrorCounter] - <throwQueryException() : no errors>
2007-03-01 14:53:08,125 DEBUG [org.hibernate.hql.ast.QueryTranslatorImpl] - <HQL: from test.hibernate.recurse.A>
2007-03-01 14:53:08,125 DEBUG [org.hibernate.hql.ast.QueryTranslatorImpl] - <SQL: select a0_.UID as UID0_, a0_.NO_VERSION as NO2_0_, a0_.VAL as VAL0_, a0_.VAL_B as VAL4_0_, a0_.VAL_C as VAL5_0_, a0_.VAL_D as VAL6_0_ from TEST_A a0_>
2007-03-01 14:53:08,125 DEBUG [org.hibernate.hql.ast.ErrorCounter] - <throwQueryException() : no errors>
2007-03-01 14:53:08,140 DEBUG [org.hibernate.engine.query.HQLQueryPlan] - <HQL param location recognition took 0 mills (from test.hibernate.recurse.A)>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.engine.query.QueryPlanCache] - <located HQL query plan in cache (from test.hibernate.recurse.A)>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.engine.query.HQLQueryPlan] - <find: from test.hibernate.recurse.A>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.engine.QueryParameters] - <named parameters: {}>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to open PreparedStatement (open PreparedStatements: 0, globally: 0)>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.SQL] - <select a0_.UID as UID0_, a0_.NO_VERSION as NO2_0_, a0_.VAL as VAL0_, a0_.VAL_B as VAL4_0_, a0_.VAL_C as VAL5_0_, a0_.VAL_D as VAL6_0_ from TEST_A a0_>
Hibernate: select a0_.UID as UID0_, a0_.NO_VERSION as NO2_0_, a0_.VAL as VAL0_, a0_.VAL_B as VAL4_0_, a0_.VAL_C as VAL5_0_, a0_.VAL_D as VAL6_0_ from TEST_A a0_
2007-03-01 14:53:08,156 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <preparing statement>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to open ResultSet (open ResultSets: 0, globally: 0)>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.loader.Loader] - <processing result set>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.loader.Loader] - <result set row: 0>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.type.LongType] - <returning '1' as column: UID0_>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.loader.Loader] - <result row: EntityKey[test.hibernate.recurse.A#1]>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.loader.Loader] - <Initializing object from ResultSet: [test.hibernate.recurse.A#1]>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.persister.entity.AbstractEntityPersister] - <Hydrating entity: [test.hibernate.recurse.A#1]>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.type.IntegerType] - <returning '0' as column: NO2_0_>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.type.IntegerType] - <returning '0' as column: VAL0_>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.type.IntegerType] - <returning '0' as column: VAL4_0_>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.type.IntegerType] - <returning '0' as column: VAL5_0_>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.type.IntegerType] - <returning '0' as column: VAL6_0_>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.engine.TwoPhaseLoad] - <Version: 0>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.loader.Loader] - <done processing result set (1 rows)>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to close ResultSet (open ResultSets: 1, globally: 1)>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <about to close PreparedStatement (open PreparedStatements: 1, globally: 1)>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.jdbc.AbstractBatcher] - <closing statement>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.loader.Loader] - <total objects hydrated: 1>
2007-03-01 14:53:08,156 DEBUG [org.hibernate.engine.TwoPhaseLoad] - <resolving associations for [test.hibernate.recurse.A#1]>
2007-03-01 14:53:08,156 ERROR [org.hibernate.property.BasicPropertyAccessor] - <IllegalArgumentException in class: test.hibernate.recurse.D, setter method of property: c>
2007-03-01 14:53:08,156 ERROR [org.hibernate.property.BasicPropertyAccessor] - <expected type: test.hibernate.recurse.C, actual value: test.hibernate.recurse.A>
Exception stack trace
-----------------------------
Exception in thread "main" org.hibernate.PropertyAccessException: IllegalArgumentException occurred while calling setter of test.hibernate.recurse.D.c
at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:104)
at org.hibernate.tuple.PojoComponentTuplizer.setParent(PojoComponentTuplizer.java:132)
at org.hibernate.type.ComponentType.instantiate(ComponentType.java:438)
at org.hibernate.type.ComponentType.resolve(ComponentType.java:524)
at org.hibernate.type.ComponentType.resolve(ComponentType.java:528)
at org.hibernate.type.ComponentType.resolve(ComponentType.java:528)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:113)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:223)
at org.hibernate.loader.Loader.doList(Loader.java:2147)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2026)
at org.hibernate.loader.Loader.list(Loader.java:2021)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:369)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:298)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:137)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1014)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at test.hibernate.recurse.Main.main(Main.java:67)
Caused by: java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:42)
... 18 more
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12 years, 6 months
[Hibernate-JIRA] Created: (HSEARCH-183) @IndexedEmbedded(prefix="") should either be forbidden or fixed with duplicate ID fields
by Stephane Epardaud (JIRA)
@IndexedEmbedded(prefix="") should either be forbidden or fixed with duplicate ID fields
----------------------------------------------------------------------------------------
Key: HSEARCH-183
URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-183
Project: Hibernate Search
Issue Type: Improvement
Components: mapping
Affects Versions: 3.0.1.GA
Reporter: Stephane Epardaud
If all my entities have their ID property named "id" and they use @IndexedEmbedded(prefix="") then there will be several fields named "id" per document.
This results in very unfortunate behaviour when indexes are updated because this id is then used by HS to remove Lucene documents, so instead of removing only the one document we are updating, HS removes all documents whose ID have been embedded in the index.
We use prefix="" in order to accumulate embedded entities' "text" fields into the root entity so that we can search on any "text" field, embedded or not. This is required because there seems to be no support for a term wildcard such as "*.text:foo" which would search on any term ending by ".text" for the string "foo".
Either prefix="" is supported, and this behaviour should be changed, or at the very least trigger a visible warning, or it is not supported and it should be documented and an exception should be thrown.
Since it is behaviour I need, I favour supporting it, so I've patched DocumentBuilder to store the ID of the root entity in a special field like _hibernate_class, so that when we update the index only the appropriate entity index document is removed. This works well, but has the side-effect of ignoring the name of the ID as specified in @DocumentId.
An alternative would be to still store the root ID is a "special" field, and keep storing the ID under a field name as specified by the user. As long as we only use the "special" ID for index updating all will work well.
I can produce both patches and documentation if you agree (and choose).
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12 years, 6 months