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.core.ext.typeinfo;
17:
18: import com.google.gwt.core.ext.UnableToCompleteException;
19:
20: import java.util.Comparator;
21:
22: /**
23: * Provides information about a single compilation unit on demand.
24: */
25: public interface CompilationUnitProvider {
26:
27: Comparator<CompilationUnitProvider> LOCATION_COMPARATOR = new Comparator<CompilationUnitProvider>() {
28: public int compare(CompilationUnitProvider cups1,
29: CompilationUnitProvider cups2) {
30: String loc1 = cups1.getLocation();
31: String loc2 = cups2.getLocation();
32: return loc1.compareTo(loc2);
33: }
34: };
35:
36: long getLastModified() throws UnableToCompleteException;
37:
38: String getLocation();
39:
40: String getMainTypeName();
41:
42: String getPackageName();
43:
44: char[] getSource() throws UnableToCompleteException;
45:
46: boolean isTransient();
47: }
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