01: /*
02: * Copyright 2007 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12: * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13: * License for the specific language governing permissions and limitations under
14: * the License.
15: */
16: package com.google.gwt.dev.cfg;
17:
18: import java.util.Iterator;
19: import java.util.LinkedList;
20:
21: /**
22: * A typed collection of {@link Rule} objects.
23: */
24: public class Rules {
25:
26: private final LinkedList<Rule> list = new LinkedList<Rule>();
27:
28: public boolean isEmpty() {
29: return list.isEmpty();
30: }
31:
32: public Iterator<Rule> iterator() {
33: return list.iterator();
34: }
35:
36: /**
37: * Prepends a rule, giving it the highest priority.
38: */
39: public void prepend(Rule rule) {
40: list.addFirst(rule);
41: }
42: }
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