Examples of org.eclipse.ui.internal.texteditor.quickdiff.compare.rangedifferencer.IRangeComparator

org.eclipse.ui.internal.texteditor.quickdiff.compare.rangedifferencer.IRangeComparator

For breaking an object to compare into a sequence of comparable entities.

It is used by RangeDifferencer to find longest sequences of matching and non-matching ranges.

For example, to compare two text documents and find longest common sequences of matching and non-matching lines, the implementation must break the document into lines. getRangeCount would return the number of lines in the document, and rangesEqual would compare a specified line given with one in another IRangeComparator.

Clients should implement this interface; there is no standard implementation.

@since 3.0

        }


        IHashFunction hash= new DJBHashFunction(); 
        DocumentEquivalenceClass leftEquivalent= new DocumentEquivalenceClass(reference, hash);
        fLeftEquivalent= leftEquivalent;
        IRangeComparator ref= new DocEquivalenceComparator(leftEquivalent, null);
        
        DocumentEquivalenceClass rightEquivalent= new DocumentEquivalenceClass(actual, hash);
        fRightEquivalent= rightEquivalent;
        IRangeComparator act= new DocEquivalenceComparator(rightEquivalent, null);
        List diffs= RangeDifferencer.findRanges(monitor, ref, act);
        // 7:  Reset the model to the just gotten differences
        //     re-inject stored events to get up to date.
        synchronized (DocumentLineDiffer.this) {
          if (isCanceled(monitor))

    int leftLine= consistentAfter.leftEnd();
    if (leftToRight)
      leftLine += lineDelta;
    int leftEndLine= leftLine - shiftAfter;
    ILineRange leftRange= new LineRange(leftStartLine, leftEndLine - leftStartLine);
    IRangeComparator reference= new DocEquivalenceComparator(leftEquivalent, leftRange);


    // right (actual) document
    int rightStartLine= consistentBefore.rightStart() + shiftBefore;
    int rightLine= consistentAfter.rightEnd();
    if (!leftToRight)
      rightLine += lineDelta;
    int rightEndLine= rightLine - shiftAfter;
    ILineRange rightRange= new LineRange(rightStartLine, rightEndLine - rightStartLine);
    IRangeComparator change= new DocEquivalenceComparator(rightEquivalent, rightRange);


    // put an upper bound to the delay we can afford
    if (leftLine - shiftAfter - leftStartLine > 50 || rightLine - shiftAfter - rightStartLine > 50) {
      initialize();
      return;

Examples of org.eclipse.ui.internal.texteditor.quickdiff.compare.rangedifferencer.IRangeComparator

Related Classes of org.eclipse.ui.internal.texteditor.quickdiff.compare.rangedifferencer.IRangeComparator