Reverse engineer of many-to-many association MySQL) does not put table attribute in hbm.xml file ------------------------------------------------------------------------------------------------ Key: HBX-749 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-749 Project: Hibernate Tools Type: Bug Components: reverse-engineer Versions: 3.2beta7 Environment: Hibernate : 3.2.0.cr4 Hibernate Tools : 3.2.0.beta7 MySQL database : 5.0.24-community-nt via TCP/IP MySQL Connector : mysql-connector-java-3.1.13-bin.jar Eclipse : 3.2 Reporter: Vaughn Butt Priority: Minor Attachments: Person.hbm.xml, Role.hbm.xml, linktest_ddl.sql The problem appears to be that the hbm.xml file generated for two classes that have a Many-To-Many relationship does not include the attribute for the link (aka association) table name. see http://forum.hibernate.org/viewtopic.php?t=964363 When I tried to navigate across the association using the generated hbm.xml file I got this stack trace (snipped): WARNING: SQL Error: 1146, SQLState: 42S02 5/09/2006 14:00:24 org.hibernate.util.JDBCExceptionReporter logExceptions SEVERE: Table 'blah.enginemodels' doesn't exist Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not initialize a collection: [com.acme.model.ChassisModel.engineModels#1] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) When I added the table="<linktablename>" attribute to the "set" element the navigation succeeded. <set name="roles" inverse="true" table="lt_role_person"> <key> <column name="person_pkid" not-null="true"> <comment></comment> </column> </key> <many-to-many entity-name="nz.co.linktest.model.Role"> <column name="role_pkid" not-null="true"> <comment></comment> </column> </many-to-many> </set> I don't think the stuff in the log is related but I could be wrong so... The file workspace\org.hibernate.eclipse.console\hibernate-tools.log had something like 2006-09-02 17:59:32,812 0 [ Worker-5] WARN ibernate.cfg.reveng.JDBCReader - The JDBC driver didn't report any primary key columns in lt_e_model_c_model. Asking rev.eng. strategy 2006-09-02 17:59:32,812 0 [ Worker-5] WARN ibernate.cfg.reveng.JDBCReader - Rev.eng. strategy did not report any primary key columns for lt_e_model_c_model 2006-09-02 18:09:08,093 575281 [ Worker-1] WARN ibernate.cfg.reveng.JDBCReader - The JDBC driver didn't report any primary key columns in lt_e_model_c_model. Asking rev.eng. strategy 2006-09-02 18:09:08,109 575297 [ Worker-1] WARN ibernate.cfg.reveng.JDBCReader - Rev.eng. strategy did not report any primary key columns for lt_e_model_c_model 2006-09-03 08:03:53,718 0 [ Worker-9] WARN ibernate.cfg.reveng.JDBCReader - The JDBC driver didn't report any primary key columns in lt_e_model_c_model. Asking rev.eng. strategy 2006-09-03 08:03:53,750 32 [ Worker-9] WARN ibernate.cfg.reveng.JDBCReader - Rev.eng. strategy did not report any primary key columns for lt_e_model_c_model 2006-09-03 16:01:57,687 0 [ Worker-3] WARN ibernate.cfg.reveng.JDBCReader - The JDBC driver didn't report any primary key columns in lt_e_model_c_model. Asking rev.eng. strategy 2006-09-03 16:01:58,125 438 [ Worker-3] WARN ibernate.cfg.reveng.JDBCReader - Rev.eng. strategy did not report any primary key columns for lt_e_model_c_model 2006-09-03 16:05:27,312 209625 [ Worker-3] WARN ibernate.cfg.reveng.JDBCReader - The JDBC driver didn't report any primary key columns in lt_e_model_c_model. Asking rev.eng. strategy 2006-09-03 16:05:27,406 209719 [ Worker-3] WARN ibernate.cfg.reveng.JDBCReader - Rev.eng. strategy did not report any primary key columns for lt_e_model_c_model where lt_e_model_c_model is like the name of the link table that the reveng originally "failed" on. Interestingly there does not seem to be any similar log entries for the attached example. The file workspace\org.hibernate.eclipse.console\hibernate-console.xml-8 had something (some other stuff removed) like <?xml version="1.0" encoding="UTF-8"?><hibernate-console><configuration name="Linktest"><hibernate-config-xml location="/Linktest/src/hibernate.cfg.xml"/><classpath><path location="/Linktest/bin"/><path location="/Linktest/lib/mysql-connector-java-3.1.13-bin.jar"/></classpath></configuration></hibernate-console> -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira