How to use

getPageType

method

in

org.h2.mvstore.DataUtils

/**
 * Only keep one reference to the same chunk. Only leaf references are
 * removed (references to inner nodes are not removed, as they could
 * indirectly point to other chunks).
 */
void removeDuplicateChunkReferences() {
  HashSet<Integer> chunks = new HashSet<>();
  // we don't need references to leaves in the same chunk
  chunks.add(DataUtils.getPageChunkId(pos));
  for (int i = 0; i < children.length; i++) {
    long p = children[i];
    int chunkId = DataUtils.getPageChunkId(p);
    boolean wasNew = chunks.add(chunkId);
    if (DataUtils.getPageType(p) == DataUtils.PAGE_TYPE_NODE) {
      continue;
    }
    if (wasNew) {
      continue;
    }
    removeChild(i--);
  }
}

int c = DataUtils.getPageChunkId(pos);
targetChunkSet.add(c);
if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {
  return;

if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {

/**
 * Remove this page and all child pages.
 */
void removeAllRecursive() {
  if (children != null) {
    for (int i = 0, size = map.getChildPageCount(this); i < size; i++) {
      PageReference ref = children[i];
      if (ref.page != null) {
        ref.page.removeAllRecursive();
      } else {
        long c = children[i].pos;
        int type = DataUtils.getPageType(c);
        if (type == DataUtils.PAGE_TYPE_LEAF) {
          int mem = DataUtils.getPageMaxLength(c);
          map.removePage(c, mem);
        } else {
          map.readPage(c).removeAllRecursive();
        }
      }
    }
  }
  removePage();
}

for (int i = 0; i < getChildPageCount(p); i++) {
  long childPos = p.getChildPagePos(i);
  if (childPos != 0 && DataUtils.getPageType(childPos) == DataUtils.PAGE_TYPE_LEAF) {

private PageChildren readPageChunkReferences(int mapId, long pos, int parentChunk) {
  if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {
    return null;

/**
 * Only keep one reference to the same chunk. Only leaf references are
 * removed (references to inner nodes are not removed, as they could
 * indirectly point to other chunks).
 */
void removeDuplicateChunkReferences() {
  HashSet<Integer> chunks = new HashSet<>();
  // we don't need references to leaves in the same chunk
  chunks.add(DataUtils.getPageChunkId(pos));
  for (int i = 0; i < children.length; i++) {
    long p = children[i];
    int chunkId = DataUtils.getPageChunkId(p);
    boolean wasNew = chunks.add(chunkId);
    if (DataUtils.getPageType(p) == DataUtils.PAGE_TYPE_NODE) {
      continue;
    }
    if (wasNew) {
      continue;
    }
    removeChild(i--);
  }
}

/**
 * Only keep one reference to the same chunk. Only leaf references are
 * removed (references to inner nodes are not removed, as they could
 * indirectly point to other chunks).
 */
void removeDuplicateChunkReferences() {
  HashSet<Integer> chunks = New.hashSet();
  // we don't need references to leaves in the same chunk
  chunks.add(DataUtils.getPageChunkId(pos));
  for (int i = 0; i < children.length; i++) {
    long p = children[i];
    int chunkId = DataUtils.getPageChunkId(p);
    boolean wasNew = chunks.add(chunkId);
    if (DataUtils.getPageType(p) == DataUtils.PAGE_TYPE_NODE) {
      continue;
    }
    if (wasNew) {
      continue;
    }
    removeChild(i--);
  }
}

/**
 * Only keep one reference to the same chunk. Only leaf references are
 * removed (references to inner nodes are not removed, as they could
 * indirectly point to other chunks).
 */
void removeDuplicateChunkReferences() {
  HashSet<Integer> chunks = New.hashSet();
  // we don't need references to leaves in the same chunk
  chunks.add(DataUtils.getPageChunkId(pos));
  for (int i = 0; i < children.length; i++) {
    long p = children[i];
    int chunkId = DataUtils.getPageChunkId(p);
    boolean wasNew = chunks.add(chunkId);
    if (DataUtils.getPageType(p) == DataUtils.PAGE_TYPE_NODE) {
      continue;
    }
    if (wasNew) {
      continue;
    }
    removeChild(i--);
  }
}

if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {

int c = DataUtils.getPageChunkId(pos);
targetChunkSet.add(c);
if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {
  return;

if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {

if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {

int c = DataUtils.getPageChunkId(pos);
targetChunkSet.add(c);
if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {
  return;

int c = DataUtils.getPageChunkId(pos);
targetChunkSet.add(c);
if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {
  return;

/**
 * Remove this page and all child pages.
 */
void removeAllRecursive() {
  if (children != null) {
    for (int i = 0, size = map.getChildPageCount(this); i < size; i++) {
      PageReference ref = children[i];
      if (ref.page != null) {
        ref.page.removeAllRecursive();
      } else {
        long c = children[i].pos;
        int type = DataUtils.getPageType(c);
        if (type == DataUtils.PAGE_TYPE_LEAF) {
          int mem = DataUtils.getPageMaxLength(c);
          map.removePage(c, mem);
        } else {
          map.readPage(c).removeAllRecursive();
        }
      }
    }
  }
  removePage();
}

/**
 * Remove this page and all child pages.
 */
void removeAllRecursive() {
  if (children != null) {
    for (int i = 0, size = map.getChildPageCount(this); i < size; i++) {
      PageReference ref = children[i];
      if (ref.page != null) {
        ref.page.removeAllRecursive();
      } else {
        long c = children[i].pos;
        int type = DataUtils.getPageType(c);
        if (type == DataUtils.PAGE_TYPE_LEAF) {
          int mem = DataUtils.getPageMaxLength(c);
          map.removePage(c, mem);
        } else {
          map.readPage(c).removeAllRecursive();
        }
      }
    }
  }
  removePage();
}

/**
 * Remove this page and all child pages.
 */
void removeAllRecursive() {
  if (children != null) {
    for (int i = 0, size = map.getChildPageCount(this); i < size; i++) {
      PageReference ref = children[i];
      if (ref.page != null) {
        ref.page.removeAllRecursive();
      } else {
        long c = children[i].pos;
        int type = DataUtils.getPageType(c);
        if (type == DataUtils.PAGE_TYPE_LEAF) {
          int mem = DataUtils.getPageMaxLength(c);
          map.removePage(c, mem);
        } else {
          map.readPage(c).removeAllRecursive();
        }
      }
    }
  }
  removePage();
}

private PageChildren readPageChunkReferences(int mapId, long pos, int parentChunk) {
  if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {
    return null;

private PageChildren readPageChunkReferences(int mapId, long pos, int parentChunk) {
  if (DataUtils.getPageType(pos) == DataUtils.PAGE_TYPE_LEAF) {
    return null;