Access over elements of an package... :-)

Hi,
assume i create a package spec and body in a database using a database user id user1... now will others users be able to access or modify elements of the package spec (which are public), or does the user1 needs to grant access???

With our own package our other programs can use any procedure or function in the package spec. When we grant EXECUTE privilege on a package to other users they have the access to call any method in the package spec. They do not have the right to modify the code in any way shape or form, unless they also have the CREATE ANY PROCEDURE system privilege (which only DBA accounts should have).
Some times we need to restrict access to a subset of packaged methods. In that case we need to build an API, a new package consisting of a spec with just that subset of functions and a body that just wraps the calls to the origin package's functions. We only grant other users execute on the new package.
Cheers, APC

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