Examples of org.apache.uima.internal.util.ComparableIntPointerIterator

org.apache.uima.internal.util.ComparableIntPointerIterator
Interface for a comparable IntListIterator. Two IntIterators are compared according to the element that would be returned by the next call to next().

      // We're valid as long as at least one index is.
      return (this.lastValidIndex >= 0);
    }


    private ComparableIntPointerIterator checkConcurrentModification(int i) {
      final ComparableIntPointerIterator cipi = this.indexes[i];
      if (cipi.isConcurrentModification()) {
        throw new ConcurrentModificationException();
      }
      return cipi;
    }

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     * @param dir
     *          Direction of iterator movement, 1 for forward, -1 for backward
     */
    private void heapify_down(ComparableIntPointerIterator it, int dir) {
      if (!it.isValid()) {
        final ComparableIntPointerIterator itl = checkConcurrentModification(this.lastValidIndex);
        this.indexes[this.lastValidIndex] = it;
        this.indexes[0] = itl;
        --this.lastValidIndex;
        it = itl;
      }

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      int lvi = this.indexes.length - 1;
      // Need to consider all iterators.
      // Set all iterators to insertion point.
      int i = 0;
      while (i <= lvi) {
        final ComparableIntPointerIterator it = this.indexes[i];
        it.resetConcurrentModification();
        it.moveToFirst();
        if (it.isValid()) {
          heapify_up(it, i, 1);
          ++i;
        } else {
          // swap this iterator with the last possibly valid one
          // lvi might be equal to i, this will not be a problem

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      int lvi = this.indexes.length - 1;
      // Need to consider all iterators.
      // Set all iterators to insertion point.
      int i = 0;
      while (i <= lvi) {
        final ComparableIntPointerIterator it = this.indexes[i];
        it.resetConcurrentModification();
        it.moveToLast();
        if (it.isValid()) {
          heapify_up(it, i, -1);
          ++i;
        } else {
          // swap this iterator with the last possibly valid one
          // lvi might be equal to i, this will not be a problem

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    public void moveToNext() {
      if (!isValid()) {
        return;
      }


      final ComparableIntPointerIterator it0 = checkConcurrentModification(0);


      if (this.wentForward) {
        it0.inc();
        heapify_down(it0, 1);
      } else {
        // We need to increment everything.
        int lvi = this.indexes.length - 1;
        int i = 1;
        while (i <= lvi) {
          // Any iterator other than the current one needs to be
          // incremented until it's pointing at something that's
          // greater than the current element.
          final ComparableIntPointerIterator it = checkConcurrentModification(i);
          // If the iterator we're considering is not valid, we
          // set it to the first element. This should be it for this iterator...
          if (!it.isValid()) {
            it.moveToFirst();
          }
          // Increment the iterator while it is valid and pointing
          // at something smaller than the current element.
          while (it.isValid() && is_before(it, it0, 1)) {
            it.inc();
          }


          // find placement
          if (it.isValid()) {
            heapify_up(it, i, 1);
            ++i;
          } else {
            // swap this iterator with the last possibly valid one
            // lvi might be equal to i, this will not be a problem

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    public void moveToPrevious() {
      if (!isValid()) {
        return;
      }


      final ComparableIntPointerIterator it0 = checkConcurrentModification(0);
      if (!this.wentForward) {
        it0.dec();
        // this also takes care of invalid iterators
        heapify_down(it0, -1);
      } else {
        // We need to decrement everything.
        int lvi = this.indexes.length - 1;
        int i = 1;
        while (i <= lvi) {
          // Any iterator other than the current one needs to be
          // decremented until it's pointing at something that's
          // smaller than the current element.
          final ComparableIntPointerIterator it = checkConcurrentModification(i);
          // If the iterator we're considering is not valid, we
          // set it to the last element. This should be it for this iterator...
          if (!it.isValid()) {
            it.moveToLast();
          }
          // Decrement the iterator while it is valid and pointing
          // at something greater than the current element.
          while (it.isValid() && is_before(it, it0, -1)) {
            it.dec();
          }


          // find placement
          if (it.isValid()) {
            heapify_up(it, i, -1);
            ++i;
          } else {
            // swap this iterator with the last possibly valid one
            // lvi might be equal to i, this will not be a problem

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      int lvi = this.indexes.length - 1;
      // Need to consider all iterators.
      // Set all iterators to insertion point.
      int i = 0;
      while (i <= lvi) {
        final ComparableIntPointerIterator it = this.indexes[i];
        it.resetConcurrentModification();
        it.moveTo(fs);
        if (it.isValid()) {
          heapify_up(it, i, 1);
          ++i;
        } else {
          // swap this iterator with the last possibly valid one
          // lvi might be equal to i, this will not be a problem

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    /**
     * @see java.lang.Comparable#compareTo(Object)
     */
    public int compareTo(Object o) throws NoSuchElementException {
      ComparableIntPointerIterator it = (ComparableIntPointerIterator) o;
      // assert(this.comp != null);
      return this.comp.compare(get(), it.get());
    }

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      this.iicp = iicp0;
      // Make sure the iterator cache exists.
      final ArrayList<FSLeafIndexImpl> iteratorCache = iicp0.iteratorCache;
      this.indexes = new ComparableIntPointerIterator[iteratorCache.size()];
      this.iteratorComparator = iteratorCache.get(0);
      ComparableIntPointerIterator it;
      for (int i = 0; i < this.indexes.length; i++) {
        final FSLeafIndexImpl leafIndex = iteratorCache.get(i);
        it = leafIndex.pointerIterator(this.iteratorComparator,
            FSIndexRepositoryImpl.this.detectIllegalIndexUpdates,
            ((TypeImpl) leafIndex.getType()).getCode());

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      // We're valid as long as at least one index is.
      return (this.lastValidIndex >= 0);
    }


    private ComparableIntPointerIterator checkConcurrentModification(int i) {
      final ComparableIntPointerIterator cipi = this.indexes[i];
      if (cipi.isConcurrentModification()) {
        throw new ConcurrentModificationException();
      }
      return cipi;
    }

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org.apache.uima.cas.impl.FSIndexRepositoryImpl$PointerIterator

org.apache.uima.internal.util.rb_trees.IntArrayRBT$ComparablePointerIterator

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