Examples of org.apache.derby.iapi.sql.dictionary.RoleClosureIterator

Package org.apache.derby.iapi.sql.dictionary

Examples of org.apache.derby.iapi.sql.dictionary.RoleClosureIterator

org.apache.derby.iapi.sql.dictionary.RoleClosureIterator
Allows iterator over the role grant closure defined by the relation GRANT role-a TO role-b, or its inverse. @see DataDictionary#createRoleClosureIterator @see org.apache.derby.impl.sql.catalog.RoleClosureIteratorImpl

        // call the REVOKE_ROLE action. It is used to invalidate dependent
        // objects (constraints, triggers and views).  Note that until
        // DERBY-1632 is fixed, we risk dropping objects not really dependent
        // on this role, but one some other role just because it inherits from
        // this one. See also RevokeRoleConstantAction.
        RoleClosureIterator rci =
            dd.createRoleClosureIterator
            (activation.getTransactionController(),
             roleName, false);


        String role;
        while ((role = rci.next()) != null) {
            RoleGrantDescriptor r = dd.getRoleDefinitionDescriptor(role);


            dd.getDependencyManager().invalidateFor
                (r, DependencyManager.REVOKE_ROLE, lcc);
        }

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        // circularity. If there exists a grant back to the role being
        // granted now, from one of the roles in the grant closure of
        // grantee, there is a circularity.


        // Via grant closure of grantee
        RoleClosureIterator rci =
            dd.createRoleClosureIterator(tc, grantee, false);


        String r;
        while ((r = rci.next()) != null) {
            if (role.equals(r)) {
                throw StandardException.newException
                    (SQLState.AUTH_ROLE_GRANT_CIRCULARITY,
                     role, grantee);
            }

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    // If not found in current role, get transitive
    // closure of roles granted to current role and
    // iterate over it to see if permission has
    // been granted to any of the roles the current
    // role inherits.
    RoleClosureIterator rci =
      dd.createRoleClosureIterator
      (activation.getTransactionController(),
       role, true /* inverse relation*/);


    String graphGrant;
    while (permDesc == null &&
         (graphGrant = rci.next()) != null) {
      permDesc =
        statPerm.getPermissionDescriptor
        (graphGrant, dd);
    }

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    // If not found in current role, get transitive
    // closure of roles granted to current role and
    // iterate over it to see if permission has
    // been granted to any of the roles the current
    // role inherits.
    RoleClosureIterator rci =
      dd.createRoleClosureIterator
      (activation.getTransactionController(),
       role, true /* inverse relation*/);


    String graphGrant;
    while (permDesc == null &&
         (graphGrant = rci.next()) != null) {
      permDesc =
        statPerm.getPermissionDescriptor
        (graphGrant, dd);
    }

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Related Classes of org.apache.derby.iapi.sql.dictionary.RoleClosureIterator

org.apache.derby.impl.sql.execute.DDLConstantAction

org.apache.derby.impl.sql.execute.DropRoleConstantAction

org.apache.derby.impl.sql.execute.GrantRoleConstantAction

org.apache.derby.impl.sql.execute.RevokeRoleConstantAction

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