Class IndexValueRow

    • Field Detail

      • valueRow

        private ExecRow valueRow
    • Constructor Detail

      • IndexValueRow

        IndexValueRow​(ExecRow valueRow)
    • Method Detail

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object
      • nColumns

        public int nColumns()
        Specified by:
        nColumns in interface Row
      • getColumn

        public DataValueDescriptor getColumn​(int position)
                                      throws StandardException
        Description copied from interface: Row
        Get a DataValueDescriptor in a Row by ordinal position (1-based).
        Specified by:
        getColumn in interface Row
        Parameters:
        position - The ordinal position of the column.
        Returns:
        The DataValueDescriptor, null if no such column exists
        Throws:
        StandardException - Thrown on failure.
      • setColumn

        public void setColumn​(int position,
                              DataValueDescriptor col)
        Description copied from interface: Row
        Set a DataValueDescriptor in a Row by ordinal position (1-based).
        Specified by:
        setColumn in interface Row
        Parameters:
        position - The ordinal position of the column.
      • getClone

        public ExecRow getClone()
        Description copied from interface: ExecRow
        Clone the Row and its contents.
        Specified by:
        getClone in interface ExecRow
        Returns:
        Row A clone of the Row and its contents.
      • getClone

        public ExecRow getClone​(FormatableBitSet clonedCols)
        Description copied from interface: ExecRow
        Clone the Row. The cloned row will contain clones of the specified columns and the same object as the original row for the other columns.
        Specified by:
        getClone in interface ExecRow
        Parameters:
        clonedCols - 1-based FormatableBitSet representing the columns to clone.
        Returns:
        Row A clone of the Row and its contents.
      • getNewNullRow

        public ExecRow getNewNullRow()
        Description copied from interface: ExecRow
        Get a new row with the same columns type as this one, containing nulls.
        Specified by:
        getNewNullRow in interface ExecRow
      • resetRowArray

        public void resetRowArray()
        Reset all columns in the row array to null values.
        Specified by:
        resetRowArray in interface ExecRow
      • cloneColumn

        public DataValueDescriptor cloneColumn​(int columnPosition)
        Description copied from interface: ExecRow
        Get a clone of a DataValueDescriptor from an ExecRow.
        Specified by:
        cloneColumn in interface ExecRow
        Parameters:
        columnPosition - (1 based)
      • orderedNulls

        public void orderedNulls​(int columnPosition)
        Description copied from interface: ExecIndexRow
        These two methods are a sort of a hack. The store implements ordered null semantics for start and stop positioning, which is correct for IS NULL and incorrect for everything else. To work around this, TableScanResultSet will check whether the start and stop positions have NULL in any column position other than for an IS NULL check. If so, it won't do the scan (that is, it will return no rows). This method is to inform this ExecIndexRow (which can be used for start and stop positioning) that the given column uses ordered null semantics.
        Specified by:
        orderedNulls in interface ExecIndexRow
        Parameters:
        columnPosition - The position of the column that uses ordered null semantics (zero-based).
      • areNullsOrdered

        public boolean areNullsOrdered​(int columnPosition)
        Description copied from interface: ExecIndexRow
        Return true if orderedNulls was called on this ExecIndexRow for the given column position.
        Specified by:
        areNullsOrdered in interface ExecIndexRow
        Parameters:
        columnPosition - The position of the column (zero-based) for which we want to check if ordered null semantics are used.
        Returns:
        true if we are to use ordered null semantics on the given column
      • getNewObjectArray

        public void getNewObjectArray()
        Description copied from interface: ExecRow
        Get a new DataValueDescriptor[]
        Specified by:
        getNewObjectArray in interface ExecRow