コード例 #1
0
  /**
   * Sorts the receiver according to the order induced by the specified comparator. All elements in
   * the range must be <i>mutually comparable</i> by the specified comparator (that is,
   * <tt>c.compare(e1, e2)</tt> must not throw a <tt>ClassCastException</tt> for any elements
   * <tt>e1</tt> and <tt>e2</tt> in the range).
   *
   * <p>The sorting algorithm is a tuned quicksort, adapted from Jon L. Bentley and M. Douglas
   * McIlroy's "Engineering a Sort Function", Software-Practice and Experience, Vol. 23(11) P.
   * 1249-1265 (November 1993). This algorithm offers n*log(n) performance on many data sets that
   * cause other quicksorts to degrade to quadratic performance.
   *
   * @param from the index of the first element (inclusive) to be sorted.
   * @param to the index of the last element (inclusive) to be sorted.
   * @param c the comparator to determine the order of the receiver.
   * @throws ClassCastException if the array contains elements that are not <i>mutually
   *     comparable</i> using the specified comparator.
   * @throws IllegalArgumentException if <tt>fromIndex &gt; toIndex</tt>
   * @throws ArrayIndexOutOfBoundsException if <tt>fromIndex &lt; 0</tt> or <tt>toIndex &gt;
   *     a.length</tt>
   * @see Comparator
   * @exception IndexOutOfBoundsException index is out of range ( <tt>size()&gt;0 && (from&lt;0 ||
   *     from&gt;to || to&gt;=size())</tt> ).
   */
  public void quickSortFromTo(int from, int to, UuidComparatorBI c) {
    int mySize = size();
    checkRangeFromTo(from, to, mySize);

    long[] myElements = elements();
    UuidSorting.quickSort(myElements, from, to + 1, c);
    elements(myElements);
    setSizeRaw(mySize);
  }
コード例 #2
0
  /**
   * Sorts the specified range of the receiver into ascending order.
   *
   * <p>The sorting algorithm is a modified mergesort (in which the merge is omitted if the highest
   * element in the low sublist is less than the lowest element in the high sublist). This algorithm
   * offers guaranteed n*log(n) performance, and can approach linear performance on nearly sorted
   * lists.
   *
   * <p><b>You should never call this method unless you are sure that this particular sorting
   * algorithm is the right one for your data set.</b> It is generally better to call
   * <tt>sort()</tt> or <tt>sortFromTo(...)</tt> instead, because those methods automatically choose
   * the best sorting algorithm.
   *
   * @param from the index of the first element (inclusive) to be sorted.
   * @param to the index of the last element (inclusive) to be sorted.
   * @exception IndexOutOfBoundsException index is out of range ( <tt>size()&gt;0 && (from&lt;0 ||
   *     from&gt;to || to&gt;=size())</tt> ).
   */
  @Override
  public void mergeSortFromTo(int from, int to) {
    int mySize = size();
    checkRangeFromTo(from, to, mySize);

    long[] myElements = elements();
    Sorting.mergeSort(myElements, from, to + 1);
    elements(myElements);
    setSizeRaw(mySize);
  }
コード例 #3
0
 /**
  * Inserts <tt>length</tt> dummy elements before the specified position into the receiver. Shifts
  * the element currently at that position (if any) and any subsequent elements to the right.
  * <b>This method must set the new size to be <tt>size()+length</tt>.
  *
  * @param index index before which to insert dummy elements (must be in [0,size])..
  * @param length number of dummy elements to be inserted.
  * @throws IndexOutOfBoundsException if <tt>index &lt; 0 || index &gt; size()</tt>.
  */
 @Override
 protected void beforeInsertDummies(int index, int length) {
   if (index > size || index < 0) {
     throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
   }
   if (length > 0) {
     ensureCapacity(size + length);
     setSizeRaw(size + length);
     replaceFromToWithFrom(index + length, size - 1, this, index);
   }
 }
コード例 #4
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 /**
  * Removes from the receiver all elements whose index is between <code>from</code>, inclusive and
  * <code>to</code>, inclusive. Shifts any succeeding elements to the left (reduces their index).
  * This call shortens the list by <tt>(to - from + 1)</tt> elements.
  *
  * @param from index of first element to be removed.
  * @param to index of last element to be removed.
  * @exception IndexOutOfBoundsException index is out of range ( <tt>size()&gt;0 && (from&lt;0 ||
  *     from&gt;to || to&gt;=size())</tt> ).
  */
 @Override
 public void removeFromTo(int from, int to) {
   checkRangeFromTo(from, to, size);
   int numMoved = size - to - 1;
   if (numMoved > 0) {
     replaceFromToWithFrom(from, from - 1 + numMoved, this, to + 1);
     // fillFromToWith(from+numMoved, size-1, 0.0f); //delta
   }
   int width = to - from + 1;
   if (width > 0) {
     setSizeRaw(size - width);
   }
 }