Changes


1   package spoon.reflect;
2   
3   import java.util.ArrayList  ;
4   import java.util.List  ;
5   
6   import spoon.reflect.declaration.CtElement;
7   
8   /**
9    * This class is a container for a list changes that may have occured on a model
10   * because of a transformation.
11   */
12  public class Changes {
13  
14      List  <CtElement> added;
15  
16      List  <CtElement> modified;
17  
18      List  <CtElement> removed;
19  
20      /**
21       * Gets the list of elements added in the model.
22       */
23      public List  <CtElement> getAdded() {
24          if (added == null) {
25              added = new ArrayList  <CtElement>();
26          }
27          return added;
28      }
29  
30      /**
31       * Gets the list of elements removed from the model.
32       */
33      public List  <CtElement> getRemoved() {
34          if (removed == null) {
35              removed = new ArrayList  <CtElement>();
36          }
37          return removed;
38      }
39  
40      /**
41       * Gets the list of updated elements.
42       */
43      public List  <CtElement> getModified() {
44          if (modified == null) {
45              modified = new ArrayList  <CtElement>();
46          }
47          return modified;
48      }
49  
50      /**
51       * Returns true if elements are added.
52       */
53      public boolean hasAdded() {
54          return added != null && !added.isEmpty();
55      }
56  
57      /**
58       * Returns true if elements are modified.
59       */
60      public boolean hasModified() {
61          return modified != null && !modified.isEmpty();
62      }
63  
64      /**
65       * Returns true if elements are removed.
66       */
67      public boolean hasRemoved() {
68          return removed != null && !removed.isEmpty();
69      }
70  
71  }
72
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