Examples of org.apache.derby.iapi.sql.execute.TemporaryRowHolder

Package org.apache.derby.iapi.sql.execute

Examples of org.apache.derby.iapi.sql.execute.TemporaryRowHolder

org.apache.derby.iapi.sql.execute.TemporaryRowHolder
This is a class that is used to temporarily (non-persistently) hold rows that are used in language execution. It will store them in an array, or a temporary conglomerate, depending on the number of rows.
It is used for deferred DML processing. @author jamie

  //this function will return the rows from the parent result sets 
  private ExecRow  getNextParentRow() throws StandardException 
  {


    ExecRow cRow;
    TemporaryRowHolder rowHolder;


    if(sourceOpened[sArrayIndex] == 0)
    {
      rowHolder = sourceRowHolders[sArrayIndex];
      source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
      source.open(); //open the cursor result set
      sourceOpened[sArrayIndex] = -1;
      sourceResultSets[sArrayIndex] = source;
    }


    if(sourceOpened[sArrayIndex] == 1)
    {
      source = sourceResultSets[sArrayIndex];
      source.reStartScan(sourceRowHolders[sArrayIndex].getTemporaryConglomId(),
                sourceRowHolders[sArrayIndex].getPositionIndexConglomId());
      sourceOpened[sArrayIndex] = -1;
      
    }


    if(sVector.size() > sourceRowHolders.length)
    {
      addNewSources();
    }


    cRow = source.getNextRow();
    while(cRow == null &&  (sArrayIndex+1) <  sourceRowHolders.length)
    {


      //opening the next source;
      sArrayIndex++;
      if(sourceOpened[sArrayIndex] == 0)
      {
        rowHolder = sourceRowHolders[sArrayIndex];
        source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
        source.open(); //open the cursor result set
        sourceOpened[sArrayIndex] = -1;
        sourceResultSets[sArrayIndex] = source;
      }

View Full Code Here

  //this function will return the rows from the parent result sets 
  private ExecRow  getNextParentRow() throws StandardException 
  {


    ExecRow cRow;
    TemporaryRowHolder rowHolder;


    if(sourceOpened[sArrayIndex] == 0)
    {
      rowHolder = sourceRowHolders[sArrayIndex];
      source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
      source.open(); //open the cursor result set
      sourceOpened[sArrayIndex] = -1;
      sourceResultSets[sArrayIndex] = source;
    }


    if(sourceOpened[sArrayIndex] == 1)
    {
      source = sourceResultSets[sArrayIndex];
      source.reStartScan(sourceRowHolders[sArrayIndex].getTemporaryConglomId(),
                sourceRowHolders[sArrayIndex].getPositionIndexConglomId());
      sourceOpened[sArrayIndex] = -1;
      
    }


    if(sVector.size() > sourceRowHolders.length)
    {
      addNewSources();
    }


    cRow = source.getNextRow();
    while(cRow == null &&  (sArrayIndex+1) <  sourceRowHolders.length)
    {


      //opening the next source;
      sArrayIndex++;
      if(sourceOpened[sArrayIndex] == 0)
      {
        rowHolder = sourceRowHolders[sArrayIndex];
        source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
        source.open(); //open the cursor result set
        sourceOpened[sArrayIndex] = -1;
        sourceResultSets[sArrayIndex] = source;
      }

View Full Code Here

        {
          //skipping the row holder that  we are copying the rows into.
          rowHolderId++;
          continue;
        }
        TemporaryRowHolder currentRowHolder = (TemporaryRowHolder)sVector.elementAt(rowHolderId);  
        CursorResultSet rs = currentRowHolder.getResultSet();
        rs.open();
        while ((row = rs.getNextRow()) != null)
        {
          rowHolder.insert(row);
        }

View Full Code Here

      Vector sVector = (Vector) activation.getParentResultSet(rsId);
      int size = sVector.size();
      int rowHolderId = 0 ;
      while(rowHolderId <  size)
      {
        TemporaryRowHolder currentRowHolder = (TemporaryRowHolder)sVector.elementAt(rowHolderId);  
        currentRowHolder.setRowHolderTypeToUniqueStream();
        rowHolderId++;
      }
    }
  }

View Full Code Here

  //this function will return the rows from the parent result sets 
  private ExecRow  getNextParentRow() throws StandardException 
  {


    ExecRow cRow;
    TemporaryRowHolder rowHolder;


    if(sourceOpened[sArrayIndex] == 0)
    {
      rowHolder = sourceRowHolders[sArrayIndex];
      source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
      source.open(); //open the cursor result set
      sourceOpened[sArrayIndex] = -1;
      sourceResultSets[sArrayIndex] = source;
    }


    if(sourceOpened[sArrayIndex] == 1)
    {
      source = sourceResultSets[sArrayIndex];
      source.reStartScan(sourceRowHolders[sArrayIndex].getTemporaryConglomId(),
                sourceRowHolders[sArrayIndex].getPositionIndexConglomId());
      sourceOpened[sArrayIndex] = -1;
      
    }


    if(sVector.size() > sourceRowHolders.length)
    {
      addNewSources();
    }


    cRow = source.getNextRow();
    while(cRow == null &&  (sArrayIndex+1) <  sourceRowHolders.length)
    {


      //opening the next source;
      sArrayIndex++;
      if(sourceOpened[sArrayIndex] == 0)
      {
        rowHolder = sourceRowHolders[sArrayIndex];
        source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
        source.open(); //open the cursor result set
        sourceOpened[sArrayIndex] = -1;
        sourceResultSets[sArrayIndex] = source;
      }

View Full Code Here

  //this function will return the rows from the parent result sets 
  private ExecRow  getNextParentRow() throws StandardException 
  {


    ExecRow cRow;
    TemporaryRowHolder rowHolder;


    if(sourceOpened[sArrayIndex] == 0)
    {
      rowHolder = sourceRowHolders[sArrayIndex];
      source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
      source.open(); //open the cursor result set
      sourceOpened[sArrayIndex] = -1;
      sourceResultSets[sArrayIndex] = source;
    }


    if(sourceOpened[sArrayIndex] == 1)
    {
      source = sourceResultSets[sArrayIndex];
      source.reStartScan(sourceRowHolders[sArrayIndex].getTemporaryConglomId(),
                sourceRowHolders[sArrayIndex].getPositionIndexConglomId());
      sourceOpened[sArrayIndex] = -1;
      
    }


    if(sVector.size() > sourceRowHolders.length)
    {
      addNewSources();
    }


    cRow = source.getNextRow();
    while(cRow == null &&  (sArrayIndex+1) <  sourceRowHolders.length)
    {


      //opening the next source;
      sArrayIndex++;
      if(sourceOpened[sArrayIndex] == 0)
      {
        rowHolder = sourceRowHolders[sArrayIndex];
        source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
        source.open(); //open the cursor result set
        sourceOpened[sArrayIndex] = -1;
        sourceResultSets[sArrayIndex] = source;
      }

View Full Code Here

        {
          //skipping the row holder that  we are copying the rows into.
          rowHolderId++;
          continue;
        }
                TemporaryRowHolder
                        currentRowHolder = sVector.elementAt(rowHolderId);
        CursorResultSet rs = currentRowHolder.getResultSet();
        rs.open();
        while ((row = rs.getNextRow()) != null)
        {
          rowHolder.insert(row);
        }

View Full Code Here

                    sVector = activation.getParentResultSet(rsId);
      int size = sVector.size();
      int rowHolderId = 0 ;
      while(rowHolderId <  size)
      {
                TemporaryRowHolder
                        currentRowHolder = sVector.elementAt(rowHolderId);
        currentRowHolder.setRowHolderTypeToUniqueStream();
        rowHolderId++;
      }
    }
  }

View Full Code Here

  //this function will return the rows from the parent result sets 
  private ExecRow  getNextParentRow() throws StandardException 
  {


    ExecRow cRow;
    TemporaryRowHolder rowHolder;


    if(sourceOpened[sArrayIndex] == 0)
    {
      rowHolder = sourceRowHolders[sArrayIndex];
      source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
      source.open(); //open the cursor result set
      sourceOpened[sArrayIndex] = -1;
      sourceResultSets[sArrayIndex] = source;
    }


    if(sourceOpened[sArrayIndex] == 1)
    {
      source = sourceResultSets[sArrayIndex];
      source.reStartScan(sourceRowHolders[sArrayIndex].getTemporaryConglomId(),
                sourceRowHolders[sArrayIndex].getPositionIndexConglomId());
      sourceOpened[sArrayIndex] = -1;
      
    }


    if(sVector.size() > sourceRowHolders.length)
    {
      addNewSources();
    }


    cRow = source.getNextRow();
    while(cRow == null &&  (sArrayIndex+1) <  sourceRowHolders.length)
    {


      //opening the next source;
      sArrayIndex++;
      if(sourceOpened[sArrayIndex] == 0)
      {
        rowHolder = sourceRowHolders[sArrayIndex];
        source = (TemporaryRowHolderResultSet)rowHolder.getResultSet();
        source.open(); //open the cursor result set
        sourceOpened[sArrayIndex] = -1;
        sourceResultSets[sArrayIndex] = source;
      }

View Full Code Here

        {
          //skipping the row holder that  we are copying the rows into.
          rowHolderId++;
          continue;
        }
        TemporaryRowHolder currentRowHolder = (TemporaryRowHolder)sVector.elementAt(rowHolderId);  
        CursorResultSet rs = currentRowHolder.getResultSet();
        rs.open();
        while ((row = rs.getNextRow()) != null)
        {
          rowHolder.insert(row);
        }

View Full Code Here

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