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org.eclipse.ltk.internal.ui.refactoring
Class ChangeElementContentProvider.OffsetComparator  view ChangeElementContentProvider.OffsetComparator download ChangeElementContentProvider.OffsetComparator.java

java.lang.Object
  extended byorg.eclipse.ltk.internal.ui.refactoring.ChangeElementContentProvider.OffsetComparator
All Implemented Interfaces:
java.util.Comparator
Enclosing class:
ChangeElementContentProvider

private static class ChangeElementContentProvider.OffsetComparator
extends java.lang.Object
implements java.util.Comparator


Constructor Summary
private ChangeElementContentProvider.OffsetComparator()
           
 
Method Summary
 int compare(java.lang.Object o1, java.lang.Object o2)
          Return an integer that is negative, zero or positive depending on whether the first argument is less than, equal to or greater than the second according to this ordering.
private  int getOffset(org.eclipse.ltk.core.refactoring.TextEditChangeGroup edit)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.util.Comparator
equals
 

Constructor Detail

ChangeElementContentProvider.OffsetComparator

private ChangeElementContentProvider.OffsetComparator()
Method Detail

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)
Description copied from interface: java.util.Comparator
Return an integer that is negative, zero or positive depending on whether the first argument is less than, equal to or greater than the second according to this ordering. This method should obey the following contract:
  • if compare(a, b) < 0 then compare(b, a) > 0
  • if compare(a, b) throws an exception, so does compare(b, a)
  • if compare(a, b) < 0 and compare(b, c) < 0 then compare(a, c) < 0
  • if compare(a, b) == 0 then compare(a, c) and compare(b, c) must have the same sign
To be consistent with equals, the following additional constraint is in place:
  • if a.equals(b) or both a and b are null, then compare(a, b) == 0.

Although it is permissible for a comparator to provide an order inconsistent with equals, that should be documented.

Specified by:
compare in interface java.util.Comparator

getOffset

private int getOffset(org.eclipse.ltk.core.refactoring.TextEditChangeGroup edit)