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 Post subject: BNF syntax
PostPosted: Thu Feb 10, 2005 7:26 am 
Newbie

Joined: Thu Feb 10, 2005 7:17 am
Posts: 1
Are there some differences between syntax of Hibernate 2.1 and Hibernate 3.

I am building a tool to help user writing HQL queries.

When I read the BNF syntawx of HQL I find this :

selectClause
: SELECT^ // NOTE: The '^' after a token causes the corresponding AST node to be the root of the sub-tree.
(DISTINCT)? ( selectedPropertiesList | newExpression | selectObject)
;


It means that in a select clause you have a list of prop's or (exclusive or)
a class conctructor or an objet.

I can deduce that ,
select foo.a, foo.b, new fooA(), foob is an invalid select clause !
ut it works ! Where am i wrong ?


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