List of fetchNext() Examples

Examples of fetchNext()

org.apache.derby.iapi.store.access.ScanController.fetchNext()
Fetch the (partial) row at the next position of the Scan. If there is a valid next position in the scan then the value in the destRow storable row is replaced with the value of the row at the current scan position. The columns of the destRow row must be of the same type as the actual columns in the underlying conglomerate. The resulting contents of destRow after a fetchNext() which returns false is undefined. The result of calling fetchNext(row) is exactly logically equivalent to making a next() call followed by a fetch(row) call. This interface allows implementations to optimize the 2 calls if possible. @param destRow The destRow row into which the valueof the next position in the scan is to be stored. @return True if there is a next position in the scan,false if there isn't. @exception StandardException Standard exception policy. @see ScanController#fetch @see RowUtil

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

      getIndexRowGenerator( indexNumber ),
      heapCC.newRowLocationTemplate(),
      crf.makeEmptyRow());


    int rowNum = 0;
    while (drivingScan.fetchNext(drivingIndexRow.getRowArray()))
    {
      baseRowLocation = (RowLocation)
            drivingIndexRow.getColumn(drivingIndexRow.nColumns());
      boolean base_row_exists = 
                heapCC.fetch(

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

        {
          baseRowIndexOrder[i] = baseObjectArray[baseColumnPositions[i] - 1];
        }
      
        /* Get the index rows and count them */
        for (indexRows = 0; scan.fetchNext(indexRow.getRowArray()); indexRows++)
        {
          /*
          ** Get the base row using the RowLocation in the index row,
          ** which is in the last column.  
          */

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


        int  expect_key = input_expect_key;
        long key        = -42;
        long numrows    = 0;


        while (scan.fetchNext(fetch_template))
        {
            scan.fetch(init_scan_template);


            // make sure all columns from fetchNext() match subsequent fetch().
            for (int i = 0; i < init_scan_template.length; i++)

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

        int  expect_key = input_expect_key;
        long key        = -42;
        long key2       = -42;
        long numrows    = 0;


        while (scan.fetchNext(fetch_template))
        {
            // see if we are getting the right keys.
            key = key_column.getLong();


            // make sure a subsequent fetch also works.

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

                false,
        TransactionController.OPENMODE_FORUPDATE,
        TransactionController.MODE_TABLE,
        TransactionController.ISOLATION_REPEATABLE_READ);


    while ( heapScan.fetchNext(heapRow.getRowArray()) )
        {
       heapScan.fetchLocation( heapLocation );


      indexRowGenerator.getIndexRow( heapRow, heapLocation, indexableRow, (FormatableBitSet) null );

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

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

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

      getIndexRowGenerator( indexNumber ),
      heapCC.newRowLocationTemplate(),
      crf.makeEmptyRow());


    int rowNum = 0;
    while (drivingScan.fetchNext(drivingIndexRow.getRowArray()))
    {
      baseRowLocation = (RowLocation)
            drivingIndexRow.getColumn(drivingIndexRow.nColumns());
      boolean base_row_exists = 
                heapCC.fetch(

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

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

        (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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