Hi

I'm using a simple collection filter: query = session.createFilter(docs, "where this.id < 20").

The filter works fine, but as soon as I call query.getReturnTypes(), I get an exception (see bellow). I have to call it because I'm writing a query execution framework and I need reflection.

It happened on 3.0.5 and 3.1 CVS.

Is this a bug or am I doing something wrong?

The log:

[DEBUG] QueryTranslatorImpl - -HQL: where this.total < 20
[DEBUG] QueryTranslatorImpl - -SQL: select document0_.ID as ID2_, document0_.ADDRESSID as ADDRESSID2_, document0_.TOTAL as TOTAL2_ from DOCUMENT document0_ where document0_.ADDRESSID = ? and document0_.TOTAL<20
[DEBUG] ErrorCounter - -throwQueryException() : no errors
[DEBUG] QueryTranslatorImpl - -parse() - HQL: where this.total < 20
[DEBUG] AST - ---- HQL AST ---
\-[QUERY] 'query'
+-[SELECT_FROM] 'SELECT_FROM'
| \-[FROM] '{filter-implied FROM}'
\-[WHERE] 'where'
\-[LT] '<'
+-[DOT] '.'
| +-[IDENT] 'this'
| \-[IDENT] 'total'
\-[NUM_INT] '20'

[DEBUG] ErrorCounter - -throwQueryException() : no errors
[DEBUG] HqlSqlBaseWalker - -select << begin [level=1, statement=select]
[ERROR] PARSER - -<AST>:0:0: unexpected end of subtree
<AST>:0:0: unexpected end of subtree
at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:2933)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:686)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:542)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:279)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:227)
at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:218)
at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:158)
at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:105)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:74)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:53)
at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:71)
at org.hibernate.impl.SessionFactoryImpl.getReturnTypes(SessionFactoryImpl.java:617)
at org.hibernate.impl.AbstractQueryImpl.getReturnTypes(AbstractQueryImpl.java:152)
at hibernate.HibernateApp.runQuery(HibernateApp.java:161)
at hibernate.HibernateApp.query(HibernateApp.java:122)
at hibernate.HibernateApp.main(HibernateApp.java:50)
[DEBUG] ErrorCounter - -<AST>:0:0: unexpected end of subtree <<AST>:0:0: unexpected end of subtree>
[ERROR] PARSER - - Invalid path: 'this.total'
Invalid path: 'this.total'
at org.hibernate.hql.ast.util.LiteralProcessor.lookupConstant(LiteralProcessor.java:93)
at org.hibernate.hql.ast.tree.DotNode.resolve(DotNode.java:178)
at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:94)
at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:90)
at org.hibernate.hql.ast.HqlSqlWalker.resolve(HqlSqlWalker.java:660)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.expr(HqlSqlBaseWalker.java:1213)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.exprOrSubquery(HqlSqlBaseWalker.java:4022)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:3556)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:1756)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:774)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:575)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:279)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:227)
at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:218)
at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:158)
at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:105)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:74)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:53)
at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:71)
at org.hibernate.impl.SessionFactoryImpl.getReturnTypes(SessionFactoryImpl.java:617)
at org.hibernate.impl.AbstractQueryImpl.getReturnTypes(AbstractQueryImpl.java:152)
at hibernate.HibernateApp.runQuery(HibernateApp.java:161)
at hibernate.HibernateApp.query(HibernateApp.java:122)
at hibernate.HibernateApp.main(HibernateApp.java:50)

Regards,
Lucian