else if( splits[i].equalsIgnoreCase( "not" ) ) {
FilterCondition a = filterStack.removeLast();
filterStack.add( NegationFilter.not( a ) );
}
else if( splits[i].equalsIgnoreCase( "or" ) ) {
DisjunctionFilter or = DisjunctionFilter.or( filterStack );
filterStack.clear();
filterStack.add( or );
}
else if( splits[i].equalsIgnoreCase( "proposed" ) ) {
filterStack.add( StatusFilter.PROPOSED );