| void Impala::Core::Table::SortOnColumn2 | ( | TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T > * | t, | |
| bool | ascending | |||
| ) |
Definition at line 77 of file Sort.h.
References Impala::Util::ApplyOrder(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn1(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn2(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn3(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn4(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn5(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn6(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn7(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn8(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn9(), Impala::Util::QuickSortCo(), Impala::Util::QuickSortDescCo(), and Impala::Core::Table::Table::Size().
Referenced by Sort().
00078 { 00079 int i; 00080 ColumnInt32 rank(t->Size()); 00081 for(i=0 ; i<t->Size() ; i++) 00082 rank.Set(i, i); 00083 00084 if(ascending) 00085 Util::QuickSortCo(t->GetColumn2()->GetData(), rank.GetData(), 0, t->Size()-1); 00086 else 00087 Util::QuickSortDescCo(t->GetColumn2()->GetData(), rank.GetData(), 0, t->Size()-1); 00088 00089 /* compute order from the rank, so fill an array with numbers 00090 at the positions they are found in the array 'rank'. 00091 this is the 'inverse of the ordering' so to say... */ 00092 ColumnInt32 order(t->Size()); 00093 for(i=0 ; i<t->Size() ; i++) 00094 order.Set(rank.Get(i), i); 00095 00096 ApplyOrder(t->GetColumn1(), &order); 00097 ApplyOrder(t->GetColumn3(), &order); 00098 ApplyOrder(t->GetColumn4(), &order); 00099 ApplyOrder(t->GetColumn5(), &order); 00100 ApplyOrder(t->GetColumn6(), &order); 00101 ApplyOrder(t->GetColumn7(), &order); 00102 ApplyOrder(t->GetColumn8(), &order); 00103 ApplyOrder(t->GetColumn9(), &order); 00104 }
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