Interface AccessRule

    • Field Detail

      • ALWAYS_READ_WRITE

        static final AccessRule ALWAYS_READ_WRITE
        Always returns read-write access permission.
      • ALWAYS_READ_ONLY

        static final AccessRule ALWAYS_READ_ONLY
        Always returns read-only access permission.
      • ALWAYS_HIDDEN

        static final AccessRule ALWAYS_HIDDEN
        Always returns hidden access permission.
    • Method Detail

      • getPermission

        AccessPermission getPermission​(Adaptation aDataSetOrRecord,
                                       Session aSession,
                                       SchemaNode aNode)
        Returns permissions for the specified arguments.

        Warning: if this AccessRule is assigned to a table record, this method is called in multiple contexts:

        1. To evaluate table "column" permissions; in this case, aDataSetOrRecord is the current dataset.
        2. To evaluate the node permissions of a specific existing record; in this case, aDataSetOrRecord is the current record.
        3. To evaluate the node permissions in a record creation context (meaning that the record does not exist yet); in this case, aDataSetOrRecord is the current dataset.
        4. Furthermore, if table history is activated, this method will also be invoked in the context of the history view in the first two cases above. In the context of the history view, some fields may be absent and the expected permissions can be different from those in other contexts. Consequently, the implementation of this method may need to check if it is being invoked from the history view. For more information, see Permissions for table history.
        Parameters:
        aDataSetOrRecord - current dataset or record (see warning above)
        aSession - current user session
        aNode - current data model node whose access must be computed; when the permission is requested for the dataset itself (not a particular node), this is the root node
        Returns:
        a permission, never null.
        See Also:
        SchemaExtensionsContext, Performance and tuning