Examples of org.apache.derby.iapi.store.access.ConglomerateController.fetch()

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

Class org.apache.derby.iapi.store.access.ConglomerateController

Examples of org.apache.derby.iapi.store.access.ConglomerateController.fetch()

org.apache.derby.iapi.store.access.ConglomerateController.fetch()
Fetch the (partial) row at the given location.
@param loc The "RowLocation" which describes the exact rowto fetch from the table. @param destRow The row to read the data into. @param validColumns A description of which columns to return fromrow on the page into "destRow." destRow and validColumns work together to describe the row to be returned by the fetch - see RowUtil for description of how these three parameters work together to describe a fetched "row". @return Returns true if fetch was successful, false if the record pointed at no longer represents a valid record. @exception StandardException Standard exception policy. @see RowUtil

        baseRowLocation = (RowLocation)  
                    indexRow1.getColumn(indexRow1.nColumns());
  
        // get the row and grab the uuid
        boolean base_row_exists = 
                    heapCC.fetch(
                        baseRowLocation, rowTemplate, columnToGetSet);


                if (SanityManager.DEBUG)
                {
                    // it can not be possible for heap row to disappear while

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      /* 1st column is TABLEID (UUID - char(36)) */
      row.setColumn(SYSTABLESRowFactory.SYSTABLES_TABLEID, new SQLChar());
      FormatableBitSet bi = new FormatableBitSet(1);
      bi.set(0);
      boolean base_row_exists = 
                heapCC.fetch(
                    baseRowLocation, row.getRowArray(), (FormatableBitSet) null);


            if (SanityManager.DEBUG)
            {
                // it can not be possible for heap row to disappear while

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                    TransactionController.MODE_RECORD,
                    TransactionController.ISOLATION_REPEATABLE_READ);


            // fetch the current value
            boolean baseRowExists =
                    heapCC.fetch(rl, row.getRowArray(), columnToRead, wait);
            if (SanityManager.DEBUG) {
                // We're not prepared for a non-existing base row.
                SanityManager.ASSERT(baseRowExists, "base row not found");
            }

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    {
      baseRowLocation = (RowLocation)
            drivingIndexRow.getColumn(drivingIndexRow.nColumns());


      boolean base_row_exists = 
                heapCC.fetch(
                    baseRowLocation, baseRow.getRowArray(), (FormatableBitSet) null);


            if (SanityManager.DEBUG)
            {
                // it can not be possible for heap row to disappear while

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    while (drivingScan.fetchNext(drivingIndexRow.getRowArray()))
    {
      baseRowLocation = (RowLocation)
            drivingIndexRow.getColumn(drivingIndexRow.nColumns());
      boolean base_row_exists = 
                heapCC.fetch(
                    baseRowLocation, baseRow.getRowArray(), (FormatableBitSet) null);


            if (SanityManager.DEBUG)
            {
                // it can not be possible for heap row to disappear while

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            boolean base_row_exists = false;
            try
            {
          base_row_exists =
                    heapCC.fetch(
                        baseRowLocation, outRow.getRowArray(), (FormatableBitSet) null);
            }
            catch (RuntimeException re)
            {
                if (SanityManager.DEBUG)

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                    (TransactionController.OPENMODE_FORUPDATE |
                     ((wait) ? 0 : TransactionController.OPENMODE_LOCK_NOWAIT)),
                    TransactionController.MODE_RECORD,
                    TransactionController.ISOLATION_REPEATABLE_READ);


            heapCC.fetch( rowLocation, row.getRowArray(), columnToUpdate, wait );


      NumberDataValue oldValueOnDisk = (NumberDataValue) row.getColumn( columnNum );


            SQLLongint expectedOldValue;
            if ( oldValue == null ) { expectedOldValue = new SQLLongint(); }

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      while (sc.fetchNext(indexRow.getRowArray())) {
        RowLocation baseRowLocation = (RowLocation)indexRow.getColumn(
          indexRow.nColumns());


        boolean base_row_exists =
          heapCC.fetch(
            baseRowLocation, outRow.getRowArray(),
            (FormatableBitSet)null);


        if (SanityManager.DEBUG) {
          // it can not be possible for heap row to

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      baseRowLocation = (RowLocation)  indexRow1.getColumn(
                        indexRow1.nColumns());


      boolean base_row_exists = 
                heapCC.fetch(
                    baseRowLocation, outRow.getRowArray(), (FormatableBitSet) null);


            if (SanityManager.DEBUG)
            {
                // it can not be possible for heap row to disappear while

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        baseRowLocation = (RowLocation)  
                    indexRow1.getColumn(indexRow1.nColumns());
  
        // get the row and grab the uuid
        boolean base_row_exists = 
                    heapCC.fetch(
                        baseRowLocation, rowTemplate, columnToGetSet);


                if (SanityManager.DEBUG)
                {
                    // it can not be possible for heap row to disappear while

View Full Code Here

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