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Hibernate version:3

I get the following exception when trying to generate the schema. I created the schmea by hand and all of my unit tests pass when inserting/updating/removing etc. It looks like it has a problem with our impl of the hi/lo generator. Any suggestions. thanks

Scott

Full stack trace of any exception that occurs:11 Aug 2005 12:21:50,771 [INFO] Dialect.<init> - Using dialect: org.hibernate.dialect.Oracle9Dialect

11 Aug 2005 12:21:50,781 [INFO] Configuration.secondPassCompile - processing extends queue
11 Aug 2005 12:21:50,781 [INFO] Configuration.secondPassCompile - processing collection mappings
11 Aug 2005 12:21:50,781 [DEBUG] HbmBinder.doSecondPass - Second pass for collection: com.cl.entity.
action.vo.Action.productActions
11 Aug 2005 12:21:50,791 [INFO] HbmBinder.bindCollectionSecondPass - Mapping collection: com.cl.enti
ty.action.vo.Action.productActions -> product_action
11 Aug 2005 12:21:50,791 [DEBUG] HbmBinder.doSecondPass - Mapped collection key: oid, one-to-many: c
om.cl.entity.productaction.vo.ProductAction
11 Aug 2005 12:21:50,791 [DEBUG] HbmBinder.doSecondPass - Second pass for collection: com.cl.entity.
outcome.vo.Outcome.outcomeProducts
11 Aug 2005 12:21:50,791 [INFO] HbmBinder.bindCollectionSecondPass - Mapping collection: com.cl.enti
ty.outcome.vo.Outcome.outcomeProducts -> outcome_product
11 Aug 2005 12:21:50,791 [DEBUG] HbmBinder.doSecondPass - Mapped collection key: oid, one-to-many: c
om.cl.entity.outcomeproduct.vo.OutcomeProduct
11 Aug 2005 12:21:50,791 [INFO] Configuration.secondPassCompile - processing association property re
ferences
11 Aug 2005 12:21:50,791 [INFO] Configuration.secondPassCompile - processing foreign key constraints

11 Aug 2005 12:21:50,791 [DEBUG] Configuration.secondPassCompileForeignKeys - resolving reference to
class: com.cl.entity.outcome.vo.Outcome
11 Aug 2005 12:21:50,791 [DEBUG] Configuration.secondPassCompileForeignKeys - resolving reference to
class: com.cl.entity.outcome.vo.Outcome
11 Aug 2005 12:21:50,791 [DEBUG] Configuration.secondPassCompileForeignKeys - resolving reference to
class: com.cl.entity.product.vo.Product
11 Aug 2005 12:21:50,791 [DEBUG] Configuration.secondPassCompileForeignKeys - resolving reference to
class: com.cl.entity.action.vo.Action
11 Aug 2005 12:21:50,791 [DEBUG] Configuration.secondPassCompileForeignKeys - resolving reference to
class: com.cl.entity.action.vo.Action
11 Aug 2005 12:21:50,791 [DEBUG] Configuration.secondPassCompileForeignKeys - resolving reference to
class: com.cl.entity.product.vo.Product
11 Aug 2005 12:21:50,821 [ERROR] SchemaExport.main - Error creating schema
org.hibernate.MappingException: could not instantiate id generator
at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:92)
at org.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:151)
at org.hibernate.cfg.Configuration.iterateGenerators(Configuration.java:548)
at org.hibernate.cfg.Configuration.generateDropSchemaScript(Configuration.java:644)
at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:64)
at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:49)
at org.hibernate.tool.hbm2ddl.SchemaExport.main(SchemaExport.java:378)
Caused by: org.hibernate.MappingException: could not interpret id generator strategy: com.cl.entity.
common.NativeHiLoGenerator
at org.hibernate.id.IdentifierGeneratorFactory.getIdentifierGeneratorClass(IdentifierGenerat
orFactory.java:103)
at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:86)
... 6 more

did you put the id generator in the classpath ?

thanks for the reply Max. A couple of simple gotchas to watch out for in my case.

Make sure the table is created :)
Make sure you implemented the sql String methods
public String[] sqlDropStrings(Dialect arg0) throws HibernateException {

log.error("sqlDropStrings called");
return new String[]{

"drop table " + tableName };

}

I had the generated stubbed out method which gave me a null pointer obviously :)

thanks again

Scott