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

Examples of org.apache.derby.iapi.store.access.ScanController.fetchNext()


            ScanController.GE,      // startSearchOperation
      null,
      null,   // stop position - through last row
            ScanController.GT);     // stopSearchOperation

    while (scanController.fetchNext(outRow.getRowArray()))
        {
      DependencyDescriptor    dependencyDescriptor;

      dependencyDescriptor = (DependencyDescriptor)
             rf.buildDescriptor(outRow,
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        ScanController.GT);     // stopSearchOperation

        /* OK to fetch into the template row,
         * since we won't be doing a next.
         */
    if (scanController.fetchNext(indexTemplateRow.getRowArray()))
    {
      RowLocation  baseRowLocation;


      baseRowLocation = (RowLocationindexTemplateRow.getColumn(
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        0,              // startSearchOperation - none
        scanQualifiers,     // scanQualifier,
        (DataValueDescriptor[]) null,    // stop position - through last row
        0);             // stopSearchOperation - none

    while (scanController.fetchNext(outRow.getRowArray()))
    {
      td = rf.buildDescriptor(outRow, parentTupleDescriptor, this);

      /* If dList is null, then caller only wants a single descriptor - we're done
       * else just add the current descriptor to the list.
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                ScanController.NA,
                (Qualifier[][]) null,
                (DataValueDescriptor[]) null,
                ScanController.NA);

    while (sc.fetchNext((DataValueDescriptor[]) null))
    {
      /* Replace the column in the table */
      sc.replace(replaceRow, columnToUpdateSet);
    }

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        (DataValueDescriptor[]) null, // stop position -through last row
        0);                   // stopSearchOperation - none

    try
    {
      while (scanController.fetchNext(outRow.getRowArray()))
      {
        SubConstraintDescriptor subCD = null;
 
        switch (rf.getConstraintType(outRow))
        {
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          ScanController.GE,         // startSearchOperation
          null,               // scanQualifier (none)
          keyRow.getRowArray(),      // stop position - exact key match.
          ScanController.GT);        // stopSearchOperation

      while (scanController.fetchNext(indexRow1.getRowArray()))
      { 
        baseRowLocation = (RowLocation
                    indexRow1.getColumn(indexRow1.nColumns());
 
        // get the row and grab the uuid
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        // it is important for read uncommitted scans to use fetchNext() rather
        // than fetch, so that the fetch happens while latch is held, otherwise
        // the next() might position the scan on a row, but the subsequent
        // fetch() may find the row deleted or purged from the table.
    while (scanController.fetchNext(outRow.getRowArray()))
    {
      cd = (ConglomerateDescriptor) rf.buildDescriptor(
                        outRow,
                        (TupleDescriptor) null,
                        this );
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        // it is important for read uncommitted scans to use fetchNext() rather
        // than fetch, so that the fetch happens while latch is held, otherwise
        // the next() might position the scan on a row, but the subsequent
        // fetch() may find the row deleted or purged from the table.
    while(scanController.fetchNext(outRow.getRowArray()))
    {
      TableDescriptor td = (TableDescriptor)
        rf.buildDescriptor(outRow, (TupleDescriptor)null,
                   this);
      ht.put(td.getUUID(), td);
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    drivingIndexRow = getIndexRowFromHeapRow(
      getIndexRowGenerator( indexNumber ),
      heapCC.newRowLocationTemplate(),
      crf.makeEmptyRow());

    while (drivingScan.fetchNext(drivingIndexRow.getRowArray()))
    {
      baseRowLocation = (RowLocation)
            drivingIndexRow.getColumn(drivingIndexRow.nColumns());

      boolean base_row_exists =
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      getIndexRowGenerator( indexNumber ),
      heapCC.newRowLocationTemplate(),
      crf.makeEmptyRow());

    try  {
      if (drivingScan.fetchNext(drivingIndexRow.getRowArray()))
      {
        rl[0] = baseRowLocation = (RowLocation)
          drivingIndexRow.getColumn(drivingIndexRow.nColumns());
        boolean base_row_exists =
                    heapCC.fetch(
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