Is there a way to create a one way connection in EJB?

Here is my problem. I have an article that has a bunch of keywords/tags (where one article can have multiple tags and one tag can go to multiple articles. Here what I'd like to achieve:

@Entity
class Article
{
    String content;
    Set<Tags> tags
}

@Entity
class Tag
{
    Integer id
    String name;
    ... //other fields
}

In other words I want to avoid @ManyToManymapping or making my own pseudo ManyToMany class (in EJB 3.0). Is 开发者_开发百科there a way for the Article to see a set of tags while Tags don't see the articles they are connected?

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Your relationship is inherently ManyToMany whether you want to see the Articles from the Tags or not.

You said it yourself: "one article can have multiple tags and one tag can go to multiple articles". There is a "multiple" on both sides.

This means you will need an intermediary join table in the database no matter how you map this into your entity model.