eclipselink - JPA metamodel and @Convert on a List<String> attribute -

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i'm exploring possibilities of using jpa metamodel criteria api.

i have entities have attributes this:

@column( name = "defaultvalue" ) @convert( converter = stringlisttostringconverter.class ) private list<string> defaultvalue;

the db column varchar holds comma-separated list of strings (it's legacy table). converter nicely allows use real collection type when working entity attribute. i'm confused metamodel eclipselink creates. attribute represented this:

 public static volatile singularattribute<myentity, list> defaultvalue;

  1. the raw type warning declaration triggers little ugly. enforced specification? there prevent declaration instead: 

    public static volatile singularattribute<myentity, list<string>> defaultvalue;

  2. i wonder if declaration can lead problems when construct criteria queries based on metamodel. example, possible construct filter checks if specific value contained in list, like

    [...] where( literal( "element" ).in( entity.get( defaultvalue ) ) )

    (maybe makes no sense @ - i've started criteria api basics)

  3. am right assume listattribute not selected type metamodel here because collectionattributes in general used expressing relationships other entities/element collections?


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