java - Use hibernate query with entity field -

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i have simple entity :

    @entity     public class university implements serializable {          /** constant serialversionuid. */         private static final long serialversionuid = 1l;          @id         @generatedvalue(strategy = generationtype.auto)         private int id;          @column         string name;          @column          string address;          @column          student student;     }

and entity student :

    @entity     public class student implements serializable {          /** constant serialversionuid. */         private static final long serialversionuid = 1l;          @id         @generatedvalue(strategy = generationtype.auto)         private int id;          @column         string firstname;          @column          string lastname;          @column          studentstatus status;     }

can create @joinformula or create query , take students student entity university entity ?

i tried that:

    @joinformula("select l student l l.id = 1")     student student;

but doesn't work. can create query select students ?

updated : @joinformula never called.

i miss poit, if want reference entity can use @manytoone annotation.

example:

@manytoone public medialibrary getparentlibrary() {     return parentlibrary; }

similary, if have list can use @manytomany annotation , specify correct join table:

example:

@manytomany(fetch = fetchtype.eager, cascade = { cascadetype.merge, cascadetype.refresh, }) @jointable(name = "mediadatatag", joincolumns = { @joincolumn(name = "mediadata_id") }, inversejoincolumns = { @joincolumn(name = "tag_id") }) public set<tag> gettags() {     return this.tags; }

if provide clear use case, easier provide specific solution.


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