Examples of org.apache.derby.impl.sql.execute.WindowResultSet

Package org.apache.derby.impl.sql.execute

Examples of org.apache.derby.impl.sql.execute.WindowResultSet

org.apache.derby.impl.sql.execute.WindowResultSet
WindowResultSet This ResultSet handles a window function ResultSet. The implementation is based on IndexRowToBaseRowResultSet. The ResultSet is opened using openCore(). Each row is fetched and any restrictions evaluated for each row in a do-while loop in getNextRowCore(). The ResultSet is closed using closeCore(). The WindowResultSet may have any type ResultSet as its source ResultSet to accomodate future window function implementation. Ranking window functions can use an already grouped or ordered resultset as its source.

                                irtbrrs.source)
                      );
    }
    else if (rs instanceof WindowResultSet)
    {
      WindowResultSet wrs = (WindowResultSet) rs;


      return new RealWindowResultSetStatistics(                      
                      wrs.numOpens,
                      wrs.rowsSeen,
                      wrs.rowsFiltered,

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                      rrs.optimizerEstimatedRowCount,
                      rrs.optimizerEstimatedCost);
    }
    else if (rs instanceof WindowResultSet)
    {
      WindowResultSet wrs = (WindowResultSet) rs;


      return new RealWindowResultSetStatistics(
                      wrs.numOpens,
                      wrs.rowsSeen,
                      wrs.rowsFiltered,

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                      rrs.optimizerEstimatedRowCount,
                      rrs.optimizerEstimatedCost);
    }
    else if (rs instanceof WindowResultSet)
    {
      WindowResultSet wrs = (WindowResultSet) rs;


      return new RealWindowResultSetStatistics(
                      wrs.numOpens,
                      wrs.rowsSeen,
                      wrs.rowsFiltered,

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                      rrs.optimizerEstimatedRowCount,
                      rrs.optimizerEstimatedCost);
    }
    else if (rs instanceof WindowResultSet)
    {
      WindowResultSet wrs = (WindowResultSet) rs;


      return new RealWindowResultSetStatistics(
                      wrs.numOpens,
                      wrs.rowsSeen,
                      wrs.rowsFiltered,

View Full Code Here

                      rrs.optimizerEstimatedRowCount,
                      rrs.optimizerEstimatedCost);
    }
    else if (rs instanceof WindowResultSet)
    {
      WindowResultSet wrs = (WindowResultSet) rs;


      return new RealWindowResultSetStatistics(
                      wrs.numOpens,
                      wrs.rowsSeen,
                      wrs.rowsFiltered,

View Full Code Here

                                irtbrrs.source)
                      );
    }
    else if (rs instanceof WindowResultSet)
    {
      WindowResultSet wrs = (WindowResultSet) rs;


      return new RealWindowResultSetStatistics(                      
                      wrs.numOpens,
                      wrs.rowsSeen,
                      wrs.rowsFiltered,

View Full Code Here

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Related Classes of org.apache.derby.impl.sql.execute.WindowResultSet

org.apache.derby.iapi.sql.execute.ExecPreparedStatement

org.apache.derby.iapi.sql.execute.ExecRow

org.apache.derby.iapi.types.DataValueDescriptor

org.apache.derby.impl.sql.execute.RealResultSetStatisticsFactory

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