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1   /*
2    * Copyright 2006 Werner Guttmann
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.exolab.castor.builder.conflictresolution;
17  
18  import org.exolab.castor.builder.SGStateInfo;
19  import org.exolab.castor.builder.SingleClassGenerator;
20  import org.exolab.castor.builder.info.ClassInfo;
21  import org.exolab.castor.util.dialog.ConsoleDialog;
22  import org.exolab.javasource.JClass;
23  
24  /**
25   * Strategy pattern for dealing with class name conflicts during source code
26   * generation. The various implementations of this stragtegy will implement
27   * individual approaches for dealing with such a naming collision.
28   *
29   * @author <a href="mailto:werner DOT guttmann AT gmx DOT net">Werner Guttmann</a>
30   * @since 1.1
31   */
32  public interface ClassNameCRStrategy {
33  
34      /**
35       * Implements a specific strategy for dealing with class name conflicts.
36       * @param state The current source generator state.
37       * @param newClassInfo The {@link CLassInfo} for the new class to be generated.
38       * @param conflict The {@link JClass} instance representing the potential conflict.
39       * @return the source generator state, as modified by the decision.
40       */
41      SGStateInfo dealWithClassNameConflict(final SGStateInfo state,
42              final ClassInfo newClassInfo, final JClass conflict);
43  
44      /**
45       * Implements a specific strategy for dealing with the fact that -- for a
46       * given file name -- an artifact with the same name already exists.
47       *
48       * @param filename The name of the file to be overwritten.
49       * @return True of the file should be overwritten.
50       */
51      boolean dealWithFileOverwrite(String filename);
52  
53      /**
54       * Returns the name of this strategy.
55       * @return The name of this strategy.
56       */
57      String getName();
58  
59      /**
60       * Sets the {@link ConsoleDialog} instance to use (if required).
61       * @param dialog the {@link ConsoleDialog} instance to use (if required).
62       */
63      void setConsoleDialog(ConsoleDialog dialog);
64  
65      /**
66       * Injects the {@link SingleClassGenerator} instance that actually is
67       * calling a method of this strategy.
68       *
69       * @param generator The calling {@link SingleClassGenerator}
70       * @see SingleClassGenerator
71       */
72      void setSingleClassGenerator(SingleClassGenerator generator);
73  
74  }