Examples of com.caucho.db.index.BTree

com.caucho.db.index.BTree
Structure of the table:
```
 b4 - flags b4 - length b8 - parent b8 - next tuples 
```
Structure of a tuple:
```
 b8  - ptr to the actual data key - the tuple's key 
```
For a non-leaf node, the key is the last matching entry in the subtree.

  void setIndex(DbTransaction xa,
                byte []block, int rowOffset,
                long rowAddr, QueryContext context)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null) {
      try {
        index.insert(block,
                     rowOffset + _columnOffset, getLength(),
                     rowAddr,
                     false);
      } catch (SqlIndexAlreadyExistsException e) {
        throw new SqlIndexAlreadyExistsException(L.l("StringColumn '{0}.{1}' unique index set failed for {2}\n{3}",

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   */
  @Override
  void deleteIndex(DbTransaction xa, byte []block, int rowOffset)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null)
      index.remove(block, rowOffset + _columnOffset, getLength());
  }

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  void setIndex(DbTransaction xa,
                byte []block, int rowOffset,
                long rowAddr, QueryContext context)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null) {
      try {
        index.insert(block,
                     rowOffset + _columnOffset, getLength(),
                     rowAddr,
                     false);
      } catch (SqlIndexAlreadyExistsException e) {
        long blockId = 0;

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   */
  @Override
  void deleteIndex(DbTransaction xa, byte []block, int rowOffset)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null)
      index.remove(block, rowOffset + _columnOffset, getLength());
  }

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  void setIndex(DbTransaction xa,
                byte []block, int rowOffset,
                long rowAddr, QueryContext context)
    throws SQLException
  {
    BTree index = getIndex();


    if (index == null)
      return;


    index.insert(block, rowOffset + _columnOffset, 8, rowAddr, false);
  }

View Full Code Here

   */
  @Override
  void deleteIndex(DbTransaction xa, byte []block, int rowOffset)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null)
      index.remove(block, rowOffset + _columnOffset, 8);
  }

View Full Code Here

  void setIndex(DbTransaction xa,
                byte []block, int rowOffset,
                long rowAddr, QueryContext context)
    throws SQLException
  {
    BTree index = getIndex();


    if (index == null)
      return;


    index.insert(block, rowOffset + _columnOffset, 8, rowAddr, false);
  }

View Full Code Here

   */
  @Override
  void deleteIndex(DbTransaction xa, byte []block, int rowOffset)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null)
      index.remove(block, rowOffset + _columnOffset, 8);
  }

View Full Code Here

  void setIndex(DbTransaction xa,
                byte []block, int rowOffset,
                long rowAddr, QueryContext context)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null) {
      try {
        index.insert(block,
                     rowOffset + _columnOffset, getLength(),
                     rowAddr,
                     false);
      } catch (SqlIndexAlreadyExistsException e) {
        long blockId = 0;

View Full Code Here

   */
  @Override
  void deleteIndex(DbTransaction xa, byte []block, int rowOffset)
    throws SQLException
  {
    BTree index = getIndex();


    if (index != null)
      index.remove(block, rowOffset + _columnOffset, getLength());
  }

View Full Code Here

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