// Check that the current user has permission to grant the privileges.
checkOwnership( currentUser, (TupleDescriptor) _tupleDescriptor, sd, dd );
DataDescriptorGenerator ddg = dd.getDataDescriptorGenerator();
PermDescriptor permDesc = ddg.newPermDescriptor
( null, objectTypeName, objectID, _privilege, currentUser, null, false );
dd.startWriting(lcc);
for( Iterator itr = grantees.iterator(); itr.hasNext();)
{