org.argeo.jcr/src/org/argeo/jcr/PropertyDiff.java

   1 package org.argeo.jcr;
   2
   3 import javax.jcr.Value;
   4
   5 /** The result of the comparison of two JCR properties. */
   6 public class PropertyDiff {
   7         public final static Integer MODIFIED = 0;
   8         public final static Integer ADDED = 1;
   9         public final static Integer REMOVED = 2;
  10
  11         private final Integer type;
  12         private final String relPath;
  13         private final Value referenceValue;
  14         private final Value newValue;
  15
  16         public PropertyDiff(Integer type, String relPath, Value referenceValue, Value newValue) {
  17                 super();
  18
  19                 if (type == MODIFIED) {
  20                         if (referenceValue == null || newValue == null)
  21                                 throw new IllegalArgumentException("Reference and new values must be specified.");
  22                 } else if (type == ADDED) {
  23                         if (referenceValue != null || newValue == null)
  24                                 throw new IllegalArgumentException("New value and only it must be specified.");
  25                 } else if (type == REMOVED) {
  26                         if (referenceValue == null || newValue != null)
  27                                 throw new IllegalArgumentException("Reference value and only it must be specified.");
  28                 } else {
  29                         throw new IllegalArgumentException("Unkown diff type " + type);
  30                 }
  31
  32                 if (relPath == null)
  33                         throw new IllegalArgumentException("Relative path must be specified");
  34
  35                 this.type = type;
  36                 this.relPath = relPath;
  37                 this.referenceValue = referenceValue;
  38                 this.newValue = newValue;
  39         }
  40
  41         public Integer getType() {
  42                 return type;
  43         }
  44
  45         public String getRelPath() {
  46                 return relPath;
  47         }
  48
  49         public Value getReferenceValue() {
  50                 return referenceValue;
  51         }
  52
  53         public Value getNewValue() {
  54                 return newValue;
  55         }
  56
  57 }