Examples of org.apache.derby.iapi.store.access.conglomerate.Sort

Package org.apache.derby.iapi.store.access.conglomerate

Examples of org.apache.derby.iapi.store.access.conglomerate.Sort

org.apache.derby.iapi.store.access.conglomerate.Sort
The sort interface corresponds to an instance of an in-progress sort. Sorts are not persistent.

            {
                // Loop from the end since the call to drop() will remove the
                // element from the list.
                for (int i = sorts.size() - 1; i >= 0; i--)
                {
                    Sort sort = (Sort) sorts.get(i);
                    if (sort != null)
                        sort.drop(this);
                }
                sorts.clear();
                freeSortIds.clear();
            }
    }

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            if (sorts != null)
            {
                for (int i = 0; i < sorts.size(); i++)
                {
                    Sort sort = (Sort) sorts.get(i);


                    if (sort != null)
                    {
                        str += 
                            "sorts created by createSort() in current xact:" +

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    // Decide what segment the sort should use.
    int segment = 0; // XXX (nat) sorts always in segment 0


    // Create the sort.
    Sort sort = sfactory.createSort(this, segment,
            implParameters,  template, columnOrdering,
            sortObserver, alreadyInOrder, estimatedRows, 
                        estimatedRowSize);


    // Add the sort to the sorts vector

View Full Code Here

  **/
    public void dropSort(long sortid) 
        throws StandardException
    {
        // should call close on the sort.
        Sort sort = (Sort) sorts.get((int) sortid);


        if (sort != null)
        {
            sort.drop(this);
            sorts.set((int) sortid, null);
            freeSortIds.add(ReuseFactory.getInteger((int) sortid));
        }
    }

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  @exception StandardException Standard error policy.
  **/
  public SortController openSort(long id)
    throws StandardException
  {
    Sort sort;


    // Find the sort in the sorts list, throw an error
    // if it doesn't exist.
    if (sorts == null || id >= sorts.size()
      || (sort = ((Sort) sorts.get((int) id))) == null)
    {
      throw StandardException.newException(
                    SQLState.AM_NO_SUCH_SORT, new Long(id));
    }


    // Open it.
    SortController sc = sort.open(this);


    // Keep track of it so we can release on close.
    if (sortControllers == null)
      sortControllers = new ArrayList();
    sortControllers.add(sc);

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  public ScanController openSortScan(
    long    id,
    boolean hold)
    throws StandardException
  {
    Sort sort;


    // Find the sort in the sorts list, throw an error
    // if it doesn't exist.
    if (sorts == null || id >= sorts.size()
      || (sort = ((Sort) sorts.get((int) id))) == null)
    {
      throw StandardException.newException(
                    SQLState.AM_NO_SUCH_SORT, new Long(id));
    }


    // Open a scan on it.
    ScanController sc = sort.openSortScan(this, hold);


    // Keep track of it so we can release on close.
    scanControllers.add(sc);


    return sc;

View Full Code Here

  @exception StandardException Standard error policy.
  **/
  public RowLocationRetRowSource openSortRowSource(long id) 
     throws StandardException
  {
    Sort sort;


    // Find the sort in the sorts list, throw an error
    // if it doesn't exist.
    if (sorts == null || id >= sorts.size()
      || (sort = ((Sort) sorts.get((int) id))) == null)
    {
      throw StandardException.newException(
                    SQLState.AM_NO_SUCH_SORT, new Long(id));
    }


    // Open a scan row source on it.
    ScanControllerRowSource sc = sort.openSortRowSource(this);


    // Keep track of it so we can release on close.
    scanControllers.add(sc);


    return sc;

View Full Code Here

            if (closeHeldControllers)
            {
                e = sorts.elements();
                while (e.hasMoreElements())
                {
                    Sort sort = (Sort) e.nextElement();
                    if (sort != null)
                        sort.drop(this);
                }
                sorts.removeAllElements();
                freeSortIds.clear();
            }
    }

View Full Code Here


            if (sorts != null)
            {
                for (int i = 0; i < sorts.size(); i++)
                {
                    Sort sort = (Sort) sorts.elementAt(i);


                    if (sort != null)
                    {
                        str += 
                            "sorts created by createSort() in current xact:" +

View Full Code Here


    // Decide what segment the sort should use.
    int segment = 0; // XXX (nat) sorts always in segment 0


    // Create the sort.
    Sort sort = sfactory.createSort(this, segment,
            implParameters,  template, columnOrdering,
            sortObserver, alreadyInOrder, estimatedRows, 
                        estimatedRowSize);


    // Add the sort to the sorts vector

View Full Code Here

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org.apache.derby.impl.store.access.RAMTransaction

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