what does # character means in JNDI lookup?

does any one know that "what does '#' character means in 开发者_JS百科JNDI look up?" like:

helloUser = (HelloUser) ctx.lookup("HelloUser#ejb3inaction.example.HelloUser");

thanks a lot

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It doesn't mean anything special. It's just a convenient delimiter that doesn't require escaping. Other characters could have been used. For example, "!" was chosen by the EJB 3.1 specification.