GORM - how to set criteria for object with list or set of strings?

[frankie kuo]

 How to create criteria for this kind attribute:

 for example:

   class Book {
       static hasMany = [references:String]
       Set references
   }


 when we need use some reference string as a search condition, how to find out books with these reference string?
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 def books = Book.createCriteria().list() {
   
    references {
       ilike(?, 'grails user guide')
    }
 }

 the above code will not work ... is anyone can give suggestions?

 my solution is use sql PreparedStatment to query now.