org.h2.mvstore.DataUtils.getPageType java code examples

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/**
 * 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;

Javadoc

Get the page type from the position.

Popular methods of DataUtils

readVarInt
Read a variable size int.
appendMap
Append a map to the string builder, sorted by key.
checkArgument
Throw an IllegalArgumentException if the argument is invalid.
copyExcept
Copy the elements of an array, and remove one element.
copyWithGap
Copy the elements of an array, with a gap.
encodeLength
Convert the length to a length code 0..31. 31 means more than 1 MB.
formatMessage
Format an error message.
getCheckValue
Calculate a check value for the given integer. A check value is mean to verify the data is consisten
getErrorCode
Get the error code from an exception message.
getFletcher32
Calculate the Fletcher32 checksum.
getPageChunkId
Get the chunk id from the position.
getPageMaxLength
Get the maximum length for the given code. For the code 31, PAGE_LARGE is returned.

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How to use getPageTypemethodin org.h2.mvstore.DataUtils

Best Java code snippets using org.h2.mvstore.DataUtils.getPageType (Showing top 20 results out of 315)

How to use
getPageType
method
in
org.h2.mvstore.DataUtils